Friday, August 16, 2019
Plot Analysis
In her ground-breaking play ââ¬Å"A Raisin in the Sun,â⬠Lorraine Hansberry challenged widespread cultural conceptions about African Americans.By focusing her play on stark realism, Hansberry was able to create a play which, in both themeà and technical execution, offered something radically different than the portrayal of American life typically seen on Broadway stages in the mid twentieth century.The impact of the play, both visually andà textually, on American audiences was visceral and controversial. Hansberry relied on depicting vastly disparate emotional states and conditions for her characters, as well as enticing her audience to experience the world of her characters with as much empathy as possible.The play's opening, for example, establishes that the Younger family is waiting for a ten-thousand dollar insurance check to arrive after the death of the family's father.The fact that the family is so steeped in poverty that each of them concocts elaborate schemes and ideas of how to spend the money before it even arrives, grips the reader or alert audience member with emotion and concern.à The ââ¬Å"intrusionâ⬠of the expected money also begins the tension in the play and drives the conflicts between the play's characters., most notably between Mama and Walter Lee.In order to engage the audience, and to cause them to identify with the Youngers, Hansberry uses the device of realism, which includes the construction of a one-room apartment set, complete with all the trappings of poverty: cramped quarters, worn furniture and carpets, and a conspicuous lack of privacy.Before the audience has even begun to grasp the events of theà play, they are immediately aware of the family's dire financial situation.The shock of the set at a purely visual and spatial level communicates the Youngers' distress to the audience.à Teh ensuing emotional tension between Mama and her son is meant to show that the external attributes of poverty have corresp onding emotional and psychological impacts and have extended to the relationships between the characters.By the end of the opening scene, the reader or audience member knows that great hope and expectation has been pinned by the family on the insurance money and many readers or spectators of the play would probably intuit that the family's emotional crisis goes far beyond anything which can be repaired with money.The idea is to advance the plot in a realistic manner so that the audience or reader not only experiences the events of the play but feels the emotional resonance which is intended to be a part of the event which are portrayed.à In order to accomplish this, every aspect of the play, not only the plot, are steeped in realism.One element of dramatic technique that enables Hansberry to successfully create a dynamic and realistic drama is her use of vernacular in the play's dialogue.Unlike the blank-verse constructions of Shakespeare, or the witticism of Oscar Wilde, or even the dreamy musings of Tennessee Williams, Hansberry delivers the dialogue of ââ¬Å"A Raisin in the Sunâ⬠in colloquial language and this aspect of them play enhances the play's verisimilitude.The realism of the play then causes the audience to more closely identify with the play's characters and plot, and each of these aspects of the play helps to communicate the important sociological and racial themes that drive ââ¬Å"A Raisin in the Sun.â⬠This attention to realism and detail is important to the play's plot, also, because as the vents of the play unfold, the reader is drawn more deeply into an emotional connection with the characters because the characters seem for all intents and purposes to be actual people who face actual, real-life struggles.As the plot progresses, the insurance check actually arrives and in their haste to be a controlling interest in the spending of the money, each of the Youngers manages to ignore the others emotional needs in pursuit of persona l materialistic dreams.When Mama decides to use the money to move the family to a white neighborhood, a further sense of doom pervades th action as the Youngers fall further into emotional discord.Throughout the progression of the plot, the play's dialogue leaves an opening for the emotional outpouring which is markedly absent from the (seemingly banal) progression of events.Hansberry's dialogue, in fact, becomes a key driving force of the play's ultimate revelatory impact on the audience. As the play progresses and the characters become more clearly defined with motivations that the audience can identify with (or despise)à the dialect of the play begins to attain a lyrical uniqueness ââ¬â a vocal music which was unlike any other play on the Broadway stage of the time.Lines such as ââ¬Å"Seem like God didnââ¬â¢t see fit to give the black man nothing but dreamsâ⬠¦.ââ¬â¢Ã¢â¬ (29) or ââ¬Å"ââ¬Å"There is always something left to love. And if you ainââ¬â¢t lear ned that, you ainââ¬â¢t learned nothingâ⬠¦.â⬠(135) attain the status of aphorism in the context of the play and divulge important social and racial realities that, for most Americans in the mid-twentieth century, existed, if at all, as merely si-debar newspaper articles or in some other abstract realization.Hansberry's play, through its fierce and relentless realism, coupled with its themes of yearning and dreaming seemed to marry the ââ¬Å"American idealâ⬠to the ââ¬Å"American nightmareâ⬠in a verbally original and thematically cathartic fashion, elevating the dialogue of racial issues in America to a place of cultural acceptance.Simultaneously, the play's plot moves in an arc of excited expectation to dissolution of dreams while expressing the internal progressions of the characters with a portrayal of external events.When Mrs. Johnson tells the Youngers about a black family that was bombed because they moved into a white neighborhood, the audience feels t he dream of Mama's to live in a better neighborhood deflating.The audience realizes that money, alone, despite the naivete with which the Youngers regard its power, will do little, perhaps nothing, to change the misery of their lives.The Youngers have regarded money and the future hope of what it may bring with a sort of ââ¬Å"exoticâ⬠hopefulness which, in its perceived futility during the vents of the play, should cause emotional frustration and dissonance in the reader and in the the audience.This dissonance reflects the same dissonance which exists between the Younger's dreams and their actual position in the world.By combining a realistic set with realistic dialogue, a kind of exoticism was reached by Hansberry, through the depiction of extreme poverty and want, which is a powerful force in granting the play unity of theme, place, and time in keeping with Aristotle's theories of dramatic construction in his Poetics.This latter attribute helps ground the play in the tradit ional dramatic structure which off-sets the aforementioned ââ¬Å"exoticismâ⬠of the play's set and characters.Despite the reluctance for most Americans in the late 50's and early 60's to face the racially based challenges of that era, ââ¬Å"A Raisin in the Sunâ⬠demonstrated, through creative expression, the urgency of the plight of African Americans in a racist society.The play's climax, when it is decided that ââ¬â despite the conflicts and hardships that the money has caused ââ¬âà that Mama's plan to move to a new neighborhood will go through, exerts a sense of hopefulness in the face of manifested obstacles (and potential violence) which seems to suggest that optimism, ambition, and ââ¬Å"togethernessâ⬠can weather storms and find fulfillment despite the truth of prejudice and poverty.However, a close reading of the play is just as likely to reveal in the reader, a sense that the Youngers are simply caught in a vicious cycle of hope and despair and t hat with each new breath of hope a corresponding crush of bad luck or ill-fortune will be experienced.à It is not fitting to say that the play, therefore, has a ââ¬Å"happyâ⬠ending, but simply an ending which reflects an unending cycle of hope against an equally unending series of obstacles.Work Citedà Hansberry, Lorraine. A Raisin in the Sun. Random House, New York. 1959
Thursday, August 15, 2019
Children and Gender
They learn to think by association and knowledge acquired from those that are most often around them. This can lead to negative views on non-specific gender roles, allowing only for a more society-based approach. Sandra BEMA, a psychologist specializing in gender studies, later goes on to define specific features of gender schematics: ââ¬Å"1. Gender schemas develop through an individual's observation of societal classifications of masculinity and femininity, which are evidenced In human anatomy, social roles, and characteristics. 2.Males and females cognitively process and categorize new information in the environment based on its maleness or femaleness. . Self-authorship is displayed by an individual's categorization of and conformity to the sets of elements that belong to either definition of masculinity and femininity' (Hoist 1). As children develop, they learn to associate things by said ââ¬Å"malenessâ⬠and ââ¬Å"femalenessâ⬠based on society. They are taught that as a male and female, they should do things specific to each gender, setting a foundation for later learning and behavior.According to Deborah Rhode, a Professor of Law at Stanford University, most research shows ââ¬Å"Children receive strong cultural messages about sex-appropriate rats, tasks, and behaviorsâ⬠(21). At such an early age, when cognitive skills are developing and when children are learning by viewing what Is around them, children start to figure out how to act based off of their certain gender. Boys are taught that they must be forceful and girls need to be motherly, while seeing advantages and disadvantages to being of a certain sex.A study In Michigan on elementary students showed that the children were able to acknowledge the fact that there are indeed ââ¬Å"gender hierarchiesâ⬠or better or worse genders (Rhode 22). ââ¬Å"When 1,100 students ere asked to describe what life would be like If they were the opposite sex, over 40 percent of the girls saw a dvantages to being male: they would have better Jobs, higher incomes, and more respect. Ninety-five percent of the boys saw no advantage to being female, and a substantial number thought suicide would be preferableâ⬠(22).How is it that at such a young age, the idea of suicide has already been associated with being female? Children are being taught this way, even If indirectly; children learn by seeing and hearing. Rhode even declares that ââ¬Å"by age two, toddlers have ex-linked toy preferences; by age three they can identify certain occupations as more appropriate for each sex; and between ages four and six they separate into same-sex groupsâ⬠(23). Gender Identity comes at such an early age before ââ¬Å"escalate[d] with anatomical differencesâ⬠(23).When children are learning that gender is related to all of these other things before even learning the physical, 1 OFF makeup of a person that makes them either male or female, which should be the factor for this as sociation. Gender schematics refers to organization based on feminine and masculine disagrees. Most parents allow their children to recognize this (not as the term but as the concept) by ââ¬Å"offer[ins] differential opportunities for learning based on their children's sexâ⬠(Shoal, Sifter, and Patriots 2).In practice, children tend to remove themselves from situations where learning becomes ââ¬Å"gender-inappropriateâ⬠for them (Shoal, Sifter, and Patriots 2). In a study of 178 kindergarten and grade four students and their parents, girls showed signs of being less gender-schematic than boys. ââ¬Å"Simple comparisons indicated that boys with gender-typed fathers and non- ender-typed mothers were more schematic than girls with the same parent gender classification, than girls with non-gender-typed mothers and gender-typed fathers, and than boys with two non-gender-typed parentsâ⬠(Shoal, Sifter, and Patriots 1).Gender typing is when children acquire masculine or fe minine roles and identify with these said roles. When children are heavily influenced by their parents, and one parent is gender typed, then typically this will have an impact on the child. Children should not be taught how to act based upon certain gender-related reminisces, but instead the more androgynous approach. This approach, or combination of gender-related characteristics, will give them the middle ground to choose for themselves as they further develop.David Opened, marriage sociologist, insists that when raising a child, parents should overlap parental roles. ââ¬Å"Men should become more nurturing and share homemaking activitiesâ⬠as women ââ¬Å"in the workplaceâ⬠(Opened 5 and 6). He suggests that gender roles of parents are learned and can easily be translated into mothers and fathers doing both gender-specific roles. Opened also claims that while renting should take on a more androgynous approach, traditional mother-father roles should not be forgotten. â⠬Å"Family organization based on (â⬠¦ ) biological differences between men and womenâ⬠(Opened 6).This is an appropriate way to combine newer and more traditional parenting styles so that children will be able to grow in an environment not solely based on the roles of any specific gender. There is sure to be opposition to this, with many suggesting that the nuclear family should be kept intact with all the initial principles that go along with it. However, when children re seeing the value in being one gender over another based on society's idea of gender-specifics, then the nuclear family is the last thing that should be worried about.The gender schema theory allows people to ââ¬Å"simplify a large body of knowledge and apply this knowledge easily to themselves and to othersâ⬠(Attenuate et al. 137). We are able to determine the gender of someone due to ââ¬Å"cues (â⬠¦ ) culturally created gender cues (â⬠¦ ) biologicalâ⬠(Attenuate et al. 137). For obvi ous reasons, it is more difficult for children to assess the gender of other children based on biological aspects. Therefore, they must use these culturally created gender cues to analyze this (I. E. Hair style, colors, etc. . Studies were done to attest to this notion, trying to reach more unconventional conclusions as to what makes a boy a boy and a girl a girl. Small children were asked to draw a picture off boy and a girl, and later gender schemas do not develop before their unconventional gender schemasâ⬠(Attenuate et al. 137). The younger children in the studies came up with reasons for each being of a certain gender not based on stereotypes, but more in unconventional, such as ââ¬Å"no legsâ⬠or ââ¬Å"she's a pirateâ⬠(Attenuate et al. 142).The children a few years older came to the conclusion that girl's had long hair and wore pink while boys had short hair and wore boy clothes. This knowledge of what it means to be a boy and a girl has to start from an ear ly age. From the time a child is born, they are subjugated to stereotyping typical boy/ girl behaviors. Parents want to let the world know if they have a son or a daughter, and this is easily done through dressing a child; a girl is given pink things while a boy s given blue. This inserts gender-specific knowledge into their mindset that only develops over time.This negative approach puts any form of androgyny into the background, thus becoming an outcast to an infant. ââ¬Å"Parents encourage sex-typed activities (â⬠¦ ) doll-playing and housekeeping for girls and trucks and sports for boysâ⬠(Witt 253). This encouragement only gives them further reason to gender-type jobs in society, making women appropriate for keeping up the house and family, while men are out working. Children should be taught that these Jobs can be interrelated between both genders and that Job qualification does not refer to what sex you are born as.Witt states that children even as young as two have an ââ¬Å"awareness of adult sex role differencesâ⬠(253). In today's society, it is quite common to see both genders participating in activities that were once considered gender-specific only. Women run for president, are doctors, are top sports players, etc. On the other spectrum, men are engaging in managing the upkeep of homes, salon employees, nurses, etc. The barriers are slowly becoming hazy and the apprehension of the wrong gender in he workplace is slowly deteriorating. What needs to be considered first and foremost is that this all starts with family.
Wednesday, August 14, 2019
Consciousness and Its Variations
Chapter IV Consciousness and its Variations Intro: 4. 1 Consciousness Your immediate awareness of thoughts, sensations, memories, and the world around you represent the experience of consciousness. William James described consciousness as a ââ¬Å"streamâ⬠or ââ¬Å"river. â⬠Although always changing, consciousness is perceived as unified and unbroken much like a stream. Because his idea of structuralism was based off of introspection, many of the leading psychologists at the turn of the twentieth century emphasized with the study of overt behavior, which could be directly observed, measured, and verified.In mid 90ââ¬â¢s many psychologists once again turned their attention to the study of consciousness. This was due to two main reasons. First it was becoming clear that a complete understanding of behavior would not be possible unless psychologists considered the role of conscious mental processes in behavior. Second was because psychologist had devised more objective way s to stud conscious experiences. For example, they could often infer the conscious experience that seemed to be occurring by carefully observing behavior.Technological advances in studying brain activity were also producing intriguing correlations between brain activity and different states of consciousness. Different perspectives that psychologist are using to piece together a picture of consciousness are the role of psychological, physiological, social, and cultural influences. Biological and Environmental ââ¬Å"clocksâ⬠that regulate Consciousness. Through the course of the day, there is a natural ebb and flow to consciousness. The most obvious variation of consciousness that we experience is the daily sleep-wake cycle. These daily cycles such as this are called circadian rhythms.You actually experience many different circadian rhythms that ebb and flow over the course of any given 24hr period. Normally your circadian rhythms are closely synchronized with one another. For e xample, the circadian rhythm for the release of growth hormone is synchronized with the sleep-wake circadian rhythm so that growth hormone is released only during sleep. The suprachiasmatic Nucleus: Your main circadian rhythms are controlled by a master biological clock-a tiny cluster of neurons in the hypothalamus in the brain. This tiny cluster of neurons is called the suprachiasmatic nucleus, abbreviated SCN.The SCN is the internal pacemaker that governs the timing of circadian rhythms. The most important environmental time cue is bright light, especially sunlight. The light is detected by special photoreceptors in the eye and is communicated via the visual system to the SCN. As the sun sets each day, the decrease in available light is detected by the SCN, and then in turn the CN triggers an increase in the production of a hormone called melatonin. Melatonin is manufactured by the pineal gland, an endocrine gland located in the brain. Increased blood levels of melatonin help make you sleepy and reduce activity levels.The levels of melatonin rise at night and peak around 0100 and 0300. Melatonin levels drop shortly before sunrises. The pineal gland stops producing melatonin, as the light from the sun is senesced by the SCN. Circadian Rhythms and Sunlight: The 24hr day Since the light from the sun helps regulate our circadian rhythm, what would happen if the external environmental factors were taken away? Well the circadian rhythm then will be referred to as a free-running condition, because the bodyââ¬â¢s internal clock runs freely and independently of external time cues.Without the external time cues researchers have found that our internal body clock drifts to its natural (or intrinsic) rhythm. They also found that our natural circadian rhythm is about 24. 2 hours, or slightly longer than a day. Also as our melatonin peaks, our body core temperature also drops to itââ¬â¢s lowest. But when deprived of all external environmental cues your bodyââ¬â¢s sleep-wake, body temperature, and melatonin circadian rhythms become desynchronized. This means that they no longer properly coordinate with one another. An example is being jet lagged. Your out of sync with the sun set because the time zone difference is 12 hrs.Sleep **Fun fact: over a personââ¬â¢s lifetime, youââ¬â¢ll spend approximately 22years of your life asleep. *** (Pg143) Prior to the 20th century, sleep was largely viewed as a period of restful inactivity in which dreams sometimes occurred. The Dawn of Modern Sleep Research The invention of the electroencephalograph by Hans Berger gave sleep researchers an important tool for measuring the rhythmic electrical activity of the brain. These electrical patterns were referred to as brain waves. The electroencephalograph produces a graphic record called EEG, or electroencephalogram.By studying the EEG researchers firmly established that brain-wave activity systematically changes throughout sleep. Eye movements, muscle movem ents, breathing rates, airflow, pulse, blood pressure, amount of exhaled carbon dioxide, body temperature, and breathing sounds are just some of the bodyââ¬â¢s functions that are measured in contemporary sleep research. Nathaniel Kleitman used his 8-year-old son to discover a pattern from the EEG and his sonââ¬â¢s rapid eye movements. More of these rapid eye movements were noticed when subjects reported dreams. Today we distinguish between two basic types of sleep.REM sleep and NREM sleep. REM is often called active sleep or paradoxical sleep because it is associated with heightened body and brain activity during which dreaming consistently occurs. NREM sleep, or non-rapid eye movement sleep, is often referred to as quiet sleep because the bodyââ¬â¢s physiological functions and brain activity slow down during this period of slumber. NREM sleep is divided into four different stages. The onset of sleep and hypnagogic hallucinations Beta brain waves are produced as you prepare for bed. They are small, fast brain waves.After youââ¬â¢re head hits the pillow and your body begins to relax, your brainââ¬â¢s electrical activity gradually gears down generating slightly larger and slower alpha brain waves. During this drowsy, pre-sleep phase, you may experience odd but vividly realistic sensations. You may hear your name called or a loud crash, fell as if youââ¬â¢re falling or floating, flying, or see kaleidoscopic patterns or an unfolding landscape. The most common hypnagogic hallucinations are the vivid sense of falling. This hallucination is often accompanied by a myoclonic jerk-an involuntary muscle spasm of the whole body that jolts the person completely awake.The First 90 minutes of sleep and beyond Each NREM sleep stage is characterized by corresponding decreases in brain and body activity. On average the progression through the first four stages of NREM sleep occupies the first 50-70 minutes. STAGE 1 NREM As the alpha brain waves of drowsiness a re replaced by even slower tbeta brain waves, you enter the first stage of sleep, which only lasts a few minutes. Stage1 is a transitional stage during which you gradually disengage from the sensation of the surrounding world. During stage 1 you can quickly regain conscious alertness if needed.Although hypnagogic experiences can occur in stage one, less vivid mental imagery is common, such as imagining yourself engaged in some everyday activity. STAGE2 NREM Stage two represents the onset of true sleep. Stage two sleep is defined by the appearance of sleep spindles, brief bursts of brain activity that last a second or two, and K complexes, single high-voltage spikes of brain activity. Breathing becomes rhythmical, slight muscle twitches may occur, theta waves are predominant in stage two, but larger, slower brain waves, called delta brain waves, also begin to emerge.During the 15-20 minutes initially spent in stage 2, delta brain-waves activity gradually increases. STAGE 3 NREM Stage s three and four are physiologically very similar. Both are defined by the amount of delta brain-wave sleep. In combination they are sometimes reefed to as slow-wave sleep (SWS). When delta brain waves represent more than 20 percent of total brain activity, the sleeper is said to be in stage 3 NREM. When delta brain waves exceed 50% of total brain activity, the sleeper is said to be in stage 4 NREM. During the first 20-40 minutes of stage four NREM, delta waves eventually come to represent 100 percent of brain activity.At that point, heart rate, blood pressure, and breathing rate drop to their lowest levels. In stage four the sleeper maybe totally oblivious to the world but his muscles are still capable of movement. For example, if sleepwalking occurs, it typically happens during stag 4 NREM sleep. In stage four NREM it is possible for a person to answer a ringing phone, carry on a conversation for severa minutes, and hang up without ever leaving stage 4 sleep- without remembering t he conversation the next day. At this point the sleeper is approximately 70 minutes into a typical nightââ¬â¢s sleep and immersed in deeply relaxed stage four sleep.At this point the sequence reverses from stage 4 to 3 to 2 and then enters a dramatic new phase called REM. REM Sleep During REM sleep the brain becomes more active and generates smaller and faster brain waves. Visual and motor neurons in the brain activate repeatedly, just as they do during wakefulness. Dreams usually occur during REM sleep. Although the brain is very active, voluntary muscle activity is suppressed, which prevents the dreaming sleeper from acting out those dreams. REM sleep is accompanied by considerable physiological arousal. The sleeperââ¬â¢s eyes dart back and forth behind closed eyelids-the rapid eye movements.Heart rate, blood pressure, and respirations can fluctuate up and down, sometimes extremely. Muscle twitches occur. In both sexes sexual arousal may occur. The first episode of REM sleep is about 5-15 minutes. From the first stage of NREM to the completion of the first cycle of REM usually lasts about 90 minutes has elapsed all together. Beyond the first 90 minutes Throughout the rest of the night, the sleeper cycles between NREM and REM sleep. Each sleep cycle lasts about 90 minutes on average, but the duration of cycles may vary from 70-120 minutes. Just and after REM sleep the sleeper changes positions.Stage 3 and 4 NREM usually occur only during the first two 90-minute cycles. As the night progresses, REM sleep episodes become increasingly longer and less time is spent in NREM. During the last two 90-minute sleep cycles before awakening, NREM sleep is composed primarily of stage two sleep and periods of REM sleep can last as long as 40 minutes. Changing sleep patterns over a lifetime During the last trimester of prenatal development, active REM and quiet NREM sleep cycles emerge. In the final weeks, REM and NREM sleep are clearly distinguishable in the fetus.Ne wborns sleep about 16 hours a day, although not all at once. Up to 8 hours or 50% of the newbornââ¬â¢s sleep is spent in REM sleep. The rest is spent in a quiet sleep that is very similar to NREM stages 1&2. Not until about the third month of life that the deep, slow-wave sleep of NREM stages 3&4 appear. Typically the 90-minute sleep cycle develops over the first few years of life. The infants first couple months is characterized as being a 60 minute sleep cycle, producing 13 sleep cycles per day. By the age of two the toddler is experiencing 75 minute sleep cycles.By 5 years old the typical 90 minute sleep cycles of alternating NREM and REM sleep is established. Total time spent in slow-wave sleep (SWS) and sleep time decrease over the lifespan. Do we need sleep? Sleep deprivation studies has show us that after one nights sleep deprivation, subjects develop microsleeps, which are episodes of sleep lasting only a few seconds that occur during wakefulness. People who go without sl eep for a day or more experience disruptions in mood, mental abilities, reaction time, perceptual skills, and complex motor skills.People us to thing that a person can adapt to only having 4-5 hours of sleep, but this is simply not true. Sleep deprivation can decrease concentration, vigilance, reaction time, memory skills, and the ability to gauge risks. Why do we sleep? Toblers theory of restorative theory of sleep states that NREM is vital to restore the body while REM is used to restore the brain and mental functions. Dreams and Mental Activity during sleep4. 2 By the adulthood the average person spends 2hours a night dreaming. So if you live to a ripe old age. You will have spent about six years of your life dreaming.Although dream may be the most spectacular brain production during sleep, they are not the most common. More prevalent is sleep thinking, also called sleep mentation. Sleep thinking usually occurs during NREM slow-wave sleep. Sleep thinking probably contributes to t hose times when you wake up with a solution to some vexing problem. When awakened during active REM sleep, people report a dream about 95% of the time. Early morning dreams are the longest lasting up to 40 minutes and are the most likely to be remembered by the dreamer. People usually have four or five dreams a night. Sleep and memory consolidation: let me sleep on it.Research shows that different sleep states and stages contribute to forming different kinds of memories. Evidence suggests that NREM sleep contributes to forming new episodic memories, which are memories of personally experienced events. In contrast, REM sleep and NREM stage2 sleep seem to help consolidate new procedural memories, which involve learning a new skill or task until it can be performed automatically. So how does sleep strengthen new memories? Almost a century ago John Jenkins and Karl Dallenbach showed that memories could be enhanced by sleep as compared to an equal amount of time spent awake.Their explana tion was that, compared to wakefulness, sleep kept additional information from interfering with new memories. This explanation was however wrong. The correct answer using todayââ¬â¢s new technology is that: New memories formed during the day are reactivated during the 90-minute cycles of sleep. This process of repeatedly reactivation these newly encoded memories during sleep strengthen the neuronal connections that contribute to forming long-term memories. So after forming new memories or learning something it is best to sleep after wards. It is also important to sleep prior to learning.This has been proven to increase the chances of retaining information. Dream Themes and Imagery: Here are some patterns and themes that are well-substantiated findings on dream content. 1) Women report males and female in equal proportion as other dream story characters. 2) Men are more likely to repot other males as the dream story characters. 3) Negative feelings and events are more common than positive ones. 4) Instances of aggression are more common than are instances of friendliness. 5) Dreamers are more likely to be victims of aggression than aggressors in their dreams. ) Men are more likely than women to report dreams involving physical aggression. 7) Women are more likely than men to report emotions in their dreams. 8) Sex and sexual behaviors seldom occur as elements of the dream. 9) Apprehension or fear is the most frequently reported dream emotion for both sexes, followed by happiness and confusion. If apprehensive or fearful emotions become progressively more intense as a dream story unfolds, there person may experience a nightmare. The nightmare typically has the dreamer as being helpless or powerless in the face of being aggressively attacked or pursued.Although fear, anxiety, and even terror are the most commonly experienced emotions, some nightmares involve intense feelings of sadness, anger, disgust, or embarrassment. The Significance of Dreams Sigmund Freud ââ¬Å"Dreams as fulfilled wishesâ⬠He was the founder of psychoanalysis. Freud believed that sexual and aggressive instincts are the motivating forces that dictate human behavior. Because these instinctual urges are so consciously unacceptable, sexual and aggressive thoughts, feelings, and wishes are pushed into the unconscious, or repressed. However, Freud believed that these repressed urges and wishes ould surface in dream imagery. Freud believed that dreams had two components. The manifest content, and the latent content. The manifest content being the dream itself and the latent content being the disguised psychological meaning of the dream. The Active-Synthesis Model of Dreaming Founded by J. Allan Hobson and Robert McCarley and stated that dreaming is our subjective awareness of the brainââ¬â¢s internally generated signals during sleep. That the experience of dreaming sleep is due to the automatic activation of brainstem circuits at the base to the brain.So the brain stem sends electrical messages to the brain and then the brain attempts to make sense of the messages. Sleep Disorders 4. 2 According to data from National Sleep Foundationââ¬â¢s annual polls, 7 out of 10 people experience sleep disruptions. People with trouble sleeping usually complain about one or more of the following: Insomnia, Excessive daytime sleepiness, and Abnormal behaviors or sensations during sleep. Sleep disruptions become a sleep disorder when A) abnormal sleep patterns consistently occur, B) They cause the subject distress, and C) they interfere with a persons daytime functioning.All sleep disorders can be classified into two broad categories. First is the dyssomnias, which are sleep disorders involving disruptions in the amount, quality, or timing of sleep (insomnia, obstructive sleep apnea, and narcolepsy). Then there is the parasomnias, which are sleep disorders involving undesirable physical arousal, behaviors, or events during sleep transitions. People are sai d to have insomnias when they repeatedly complain about quality or duration of their sleep, have difficulty going to sleep or staying asleep, or wake before it is time to get up. Transient insomnias last anywhere from about 1-2 nights to a couple weeks.Chronic insomnias last at least three nights each week that persist for a month or longer. Women are more predisposed to insomnias than men. Insomnias are also influenced by age, and gender. Most commonly insomnias can be traced to anxiety over stressful life events. Obstructive sleep apnea Sleep apnea is the second most common type of sleep disorder characterized by daytime sleepiness and excess snoring. The sleeperââ¬â¢s airway becomes narrowed or blocked, causing very shallow breathing or repeated pauses or stops breathing. Each time breathing stops, oxygen blood levels decrease and carbon dioxide blood levels increase.Sleep apnea tends to run in families and is more predominate in middle age males. To treat sleep apnea requires a life style change. Usually its treaded by loosing weight, avoiding alcohol, surgery to widen breathing passages, or a special mouth piece. Sever to moderate sleep apnea is treated with positive airway pressure from a CPAP. Narcolepsy People with narcolepsy experience or abundance of daytime fatigue regardless of the amount of time asleep. This uncontrollable event of a rapid onset of sleepiness is called sleep attacks or microsleeps. About 70% of people who suffer from narcolepsy experience cataplexy.Cataplexy is the sudden loss of voluntary muscle strength and control, lasting from several seconds to several minutes. People with narcolepsy also can experience sleep paralysis. Parasomnias In a parasomnias, the personââ¬â¢s brain is just awake enough to carryout the actions yet is still immersed in sleep that he or she has no conscious awareness or subsequent memory of having performed the action. Parasomnias occur during NREM stages 3 & 4, are more common in children and decre ase with age, occurs in multiple family member, suggest a genetic predisposition. Sleep Terrors:Also called night terrors, typically occur in the first few hours of sleep during stage 3 & 4 NREM. Physiologically, the first sign of a sleep terror is sharply increased physiological arousal, restlessness, sweating, and a racing heart rate. The difference between a sleep terror and a nightmare is as follows: Whereas nightmares involve a progressive unpleasant dream story, a sleep terror is usually accompanied by a single but terrifying sensation, such as being crushed or falling. Sleepsex Also called sexsomnia, involves abnormal sexual behaviors and experiences during sleep.Without realizing what he or she is doing, the sleeper initiates dome kind of sexual behavior, such as masturbation, sleepsex-talking, groping or fondling their bed partnerââ¬â¢s genitals, or sexual intercourse. Sleepwalking Also called somnambulism. Sleep-Related Eating Disorders Frequent sleepwalking episodes to the kitchen, compulsive eating, and then awakening the next morning with no memory of having done so are the hallmarks of sleep-related eating disorders. The dangerous part of this is when the subject eats non-food items such as cat food, raw bacon, salt sandwiches, coffee grounds, or hand creams. Hypnosis 4. 3Hypnosis can be defined as a cooperative social interaction in which the hypnotic participant responds to suggestions made by the hypnotist. Hypnosis is characterized by highly focused attention, increased responsiveness to suggestions, vivid images and fantasies, and a willingness to accept distortions of logic or reality. Effects of Hypnosis Subjects of hypnosis may report detachment from their bodies, profound relaxation, or sensations of timelessness. Sensory and perceptual changes Sensory changes that can be induced through hypnosis include temporary blindness, deafness, or a complete loss of sensation in some part of he body.People can also experience hallucinations und er hypnosis. Hypnosis can also influence behavior outside the hypnotic state. When a posthypnotic suggestion is given. The person will carry out that specific suggestion after the hypnotic session is over. Hypnosis and memory Memory can be effected by posthypnotic amnesia, in which a subject is unable to recall specific information or events that occurred before or during hypnosis. The opposite effect is called hypermnesia, which is enhancement of memory for past events through hypnotic suggestions. Explaining HypnosisPsychologist Ernest R Hilgard believed that the hypnotize person experiences dissociation- the splitting of consciousness into two or more simultaneous streams of mental activity. This is called Hilgardââ¬â¢s neodissociation theory of hypnosis. Limits and applications of Hypnosis Contrary to popular belief, you cannot be hypnotized against your will. Second hypnosis cannot make you perform behaviors that are contrary to your moral and values. Third, hypnosis cannot make you stronger than your physical capabilities or bestow new talents. Hypnosis can be used to help modify problematic behaviors.Meditation Meditation refers to a group of techniques that induce an altered state fo focused attention and heightened awareness. Common to all forms of meditation is the goal of controlling or retaining attention. There are two general categories of meditation, Concentration techniques involving focusing awareness on visual image, your breathing, a word, or a phrase. When a sound is used, it is typically a short word or religious phrase, called a mantra. The second category is opening-up techniques involving a present-centered awareness of the passing moment, without mental judgment.Rather than concentrating on an object, sound, or activity, the meditator engages in quiet awareness of the ââ¬Å"here and nowâ⬠without distracting thoughts. Effects of meditation The early research on meditation focused on its use as a relaxation technique that relie ved stress and improved cardiovascular health. Numerous studies now show that practicing TM (transcendental meditation) subjects experience a state of lowered physiological arousal, including a decrease in heart rate, lowered blood pressure, and changes in brain waves. Psychoactive Drugs 4. 4Psychoactive drugs are chemical substances that can alter arousal, mood, thinking, sensations, and perceptions. There are four categories of psychoactive drugs and they are depressants (drugs that depress, or inhibit, brain activity), opiates (drugs that are chemically similar to morphine and that relieve pain and produce euphoria), stimulants (drugs that stimulate, or excite, brain activity), and psychedelic drugs (drugs that distort sensory perceptions). The Depressants Alcohol, Barbiturates, Inhalants, and Tranquilizers The depressants are a class of drugs that depress or inhibit central nervous system activity.In general, depressants produce drowsiness, sedation, or sleep. Alcohol Used in sm all amount alcohol reduces tension and anxiety, along with reducing the risk of heart disease. Alcohol can also be misused and considered a dangerous drug. How does alcohol affect the body? Generally it takes about one hour to metabolize the alcohol in one drink, which is defined as 1 ounce of 80 proof whiskeys, 4 ounces of wine, or 12 ounces of beer. Alcohol depresses the activity of neurons throughout the brain. As the blood alcohol levels rise, the more brain activity that is impaired.Because alcohol is physically addictive, the person with alcoholism who stops drining may suffer from physical withdrawal symptoms. Inhalants Inhalants are chemical substances that are inhaled to produce an alteration in consciousness. At low doses, they may cause relaxation, giddiness, and reduced inhibition. At higher doses inhalants can lead to hallucinations and a loss of consciousness. Repeatedly inhaling is a practice that increases risk of serious damage to the brain, heart, and other organs. In a study using a inhalant abuser and a cocaine addict that tested both subjects cognitive abilities.The cocaine addict actually scored higher than the inhalant abuser. Even though they both were below the norm for non-users. Barbiturates-Tranquilizers Barbiturates are powerful depressant drugs that reduce anxiety and promote sleep, which is why they are sometime called ââ¬Å"downers. â⬠Barbiturates depress activity in the brain center that control arousal, wakefulness, alertness, and also depress the brains respiratory centers. Low doses cause relaxation, mild euphoria, and reduced inhibitions, but larger doses produce a loss of coordination, impaired mental functioning, and depression.High doses can produce unconsciousness, coma, and death. Barbituates produce a very deep but abnormal sleep in which REM sleep is greatly reduced. Tranquilizers are depressants that relieve anxiety. Common prescribe tranquilizers are Xanax, Valium, and Ativan. The Opiates Often called narcot ics, these groups of addictive drugs relieve pain and produce feelings of euphoria (a feeling of happiness, confidence, or well-being some times exaggerated in pathological states as mania). Opiates produce their powerful effects by mimicking the brainââ¬â¢s own natural painkillers, called endorphins.Heroin, OxyContin, Demorol, Fentanyl, Percodan, and Vicodin. The Stimulants Caffeine, Nicotine, Amphetamines, and Cocaine Stimulants vary in the strength of their effects, legal status, and the manner in which they are taken. All stimulants however are at least mildly addicting, and all tend to increase brain activity. Caffeine and Nicotine Caffeine is the most widely used psychoactive drug in the world. Its found in almost everything (soda, coffee, tea, chocolate, and cola drinks). Caffeine stimulates the cerebral cortex in the brain, resulting in an increase in mental alertness and wakefulness.Nicotine, contrary to popular belief does not relax the body. Instead it stimulates it. N icotine increases neural activity in many area of the rain, including the frontal lobes, thalamus, hippocampus, and amygdala. Amphetamines and Cocaine Like caffeine and nicotine, amphetamines and cocaine are addictive substances that stimulate brain activity, increasing mental alertness and reducing fatigue. Amphetamines is sometimes called ââ¬Å"speedâ⬠or ââ¬Å"uppers. â⬠Amphetamines suppress appetite and were once widely prescribed as diet pills. Cocaine is an illegal stimulant derived from the leaves of the coca tree.Inhaling cocaine produces intense euphoria, mental alertness and self-confidence. A more concentrated form of cocaine is called ââ¬Å"crackâ⬠which is smoked instead of inhaled. Prolonged use of cocaine and amphetamines can result in stimulant-induced psychosis, which have Schizophrenia-like symptoms, including hallucinations of voices and bizarrely paranoid ideas. Psychedelic Drugs Mescaline, LSD, and Marijuana This is a group of drugs that creat e profound perceptual distortions, alter mood, and affect thinking. Psychedelic literally means ââ¬Å"mind manifesting. â⬠Mescaline and LSD Mescaline was derived from the peyote cactus.Another psychedelic drug is psilocybin which is derived from the Psilocybin mushroom or sometimes called the ââ¬Å"magic mushroomsâ⬠or ââ¬Å"shrooms. â⬠Mescaline and LSD are very similar chemically to the neurotransmitter serotonin, which is involved in regulating moods and sensations. These drugs can sometime have a ââ¬Å"bad tripâ⬠were the user doesnââ¬â¢t get the results the wished for but they get the opposite. Marijuana The common hemp plant, Cannabis sativa, is used to make rope and cloth. But when its leaves, stems, flowers, and seeds are dried and crushed, the mixture is called marijuana. Designer ââ¬Å"Clubâ⬠Drugs Ecstasy and dissociative anesthetic drugs
Tuesday, August 13, 2019
The Agony of Vietnam Essay Example | Topics and Well Written Essays - 1000 words
The Agony of Vietnam - Essay Example Most persons prefer narrating their ordeals from an optimistic perspective. Typically, knowledge from testimonies was obtained from some exceptional persons who represented a bulk of those who participated in the war, either directly as combatants or indirectly as supporters and protestors. As a thesis statement, it appears Vietnam War caused significant physical and psychological sufferings to Americans both at home and away in the battlefield. In order to understand events and experiences from Vietnam War, historians have preferred the use of oral interviewing techniques. Responses from such techniques are contained in chapter 10 of the book ââ¬Å"Discovering the American Past.â⬠The first interviewee in the book is a college student named John. When the Vietnam War commenced, the responded had just joined college. During that time, American armed forces needed more soldiers for the war. Consequently, there was a pending legislative draft in congress recommending for mandatory incorporation of college aged youth into the army. In case of poor college performance, one had higher chances of being incorporated into the military. Therefore, eligible college students had to keep their grades high or risk college deferments, which would inevitably land them into the military (Becker and Glover, 317). As the Vietnam War intensified, college students started engaging in deliberate debates. Some of them hailed from conservative families while others were from liberal backgrounds. Despite the difference in their family backgrounds, all the youth were forced into an era of awakening as they encountered realities from the real world away from the shelters of their paren tal homes. The second interviewee was also a college student named Johnson together with his college sweetheart Hanna. Both respondents are from an African- American community. During the war, blacks and the poor citizens in America were forced
Monday, August 12, 2019
Government Contract Law Assignment Example | Topics and Well Written Essays - 1000 words
Government Contract Law - Assignment Example One of the commonest systems used to enforce the existence of propriety and fairness is the code of ethics. There is the code of ethics are enshrined in rules and regulations of companies at the local level. There are others that are put in place laws and policies such as Federal Acquisition Regulation (FAR). PrintMark Publications is the new firm specializing in publishing and printing that is seeking to investigate how the code of ethics would impact its activities and programs. Evaluating the Raytheon Code of Ethics and relating it to the publishing organization, it can be said that the codes are very effective in avoiding any conduct that may even appear to be unethical. There are two major reasons why this position is taken. In the first place, the Raytheon Code of Ethics is very universal in nature. What this means is that the code identifies all person within the organization and what they are expected to do to avoid conduct that may appear to be unethical or inappropriate. Bowie (2002) lamented that there are organizations that refuse to accept the fact that codes should cover those at the top as well as those at the bottom. Consequently, such organizations only make codes to cover those at the bottom. In such situations, chances that acts of conflict of interest will be engaged in by senior management members are higher. The Raytheon Code of Ethics, however, covers both leaders and employees. The other rationale for saying the code is effective is tha t the code has been structured in such a way that it incorporates Government Accountability Office reports and decisions. This means that adopting such code would ensure that the organizationââ¬â¢s ethics fit into the larger public ethical expectation in publishing. As explained earlier, the clauses selected from the Raytheon Code of Ethics will solve the specific ethical issue of the unlawful use of information as has persistently existed in the publishing industry. Within the publishing industry, there seems to be a very huge ethical dilemma when it comes to the interpretation of freedom of information law. There are many who tend to think that because of the existence of the freedom to information law, they can go every extent to access information from other people. Most of the time broadcasters feel that by becoming the first to break news they would become the most preferred destinations for news by the public.Ã
Sunday, August 11, 2019
Expected Value Essay Example | Topics and Well Written Essays - 2500 words
Expected Value - Essay Example This is because of the unpredictability of certain parameters which are associated with our planning. For example, in a cricket match, winning the toss has major role in deciding the victory. Most of the cricket pitches are underprepared which may favor either batting or bowling initially and then changes its characteristics later during the second innings. The toss winning captain can take decisions about whether to bat/ bowl first or to include pace bowlers or spinners in the team, based on the evaluation of the pitch. Many of the cricket teams underprepare their cricket pitches based on their strengths in batting and bowling. However, if they fail to win tosses, their planning cannot be implemented successfully. This is because of the fact that the chances of winning a toss are 50-50 since the coin has only two sides. In other words, the probability of getting a head or tail is 50-50. In such uncertain situations, the mathematical term ââ¬Å"expected valueâ⬠can help people in taking decisions. Expected value in mathematics is the weighted average of all the possible values. In other words, all the possibilities of a particular event will be evaluated properly while calculating the expected value. In industries and casinos, expected value has significant role to play. This paper analyses the history and importance of expected value. History of expected value The exact date of origination of the idea about expected value is still unknown to us. However, it is widely accepted that the expected value concepts were used during the latter half of the seventeenth century. Blaise Pascal, a French scientist and mathematician, is believed to be the founding father of the expected value theory. During the middle part of seventeenth century, the question of how to solve the problems of points or the problems of division of stakes raised major challenges to the mathematicians. Blaise Pascal and his associates started to solve these problems and the idea of expecte d value originated from their efforts. Even though, Pascal and his associates used different methods to solve this problem, they got same results since they used the same fundamental principle of mathematics in all their calculations. Apart from Pascal and his associates, a Dutch mathematician called Christian Huygens also contributed heavily to the development of expected value theory. Significance of expected value theory in casinos Expected value theory has greater significance in gambling. The chances of winning and losing in gambling depend on various parameters associated with the particular game selected for gambling. For example, poker is a game, which works on mathematical principles. Even though the nature and characteristics of the players play a vital role in deciding the winners of the poker game, many calculations including permutations and combinations are necessary to make sound decisions. For example, the right frequency to bluff in a situation is determined based o n the likelihood your opponent will fold in that particular situation. In limit, for example, when all the cards are out, how do you determine whether you should bluff on the river? If you can figure out that the pot is offering a caller 5:1 odds to call, but you know that they will fold the best hand 1 in six times, then bluffing now becomes mathematically correct (Importance of Math: expected value,
Reality television Essay Example | Topics and Well Written Essays - 1000 words
Reality television - Essay Example Reality shows are usually produced in the form of series, which include a bundle of events and dramatic situations. Some reality shows feature celebrities whereas some shows consist of ordinary people. The prize for the winners of the reality shows is usually very astonishing and attractive, which makes celebrities and ordinary people participate in the shows. Reality television shows in the UK have a mass appeal (Hill 2). The reality shows such as Big Brother, Wife Swap, and The Biggest Loser have been able to mark great success in the television industry. Reality television shows have become a real source of entertainment for the people and a source of generating high profits for the organizers. The thesis statement for this essay is, ââ¬Å"Does reality television represent ââ¬Ëreal lifeââ¬â¢?â⬠Let us now discuss this statement in order to know whether reality television shows are close to real life or not. In my view, the reality television shows do not represent a real life. I think reality television shows focus more on providing entertainment to the viewers rather than focusing on the essence of real life. Real life is very different from what is usually presented in the reality shows. Although the actions of a person in a reality show are based on different experiences of real life, yet the actions deviate from what that person does in his real life. ââ¬Å"A reality show is not to be confused with a documentary, in which the subjects are asked to ignore the cameras and behave naturallyâ⬠(Pollick). Real life is a mixture of different experiences and situations. Real life, as the name suggests, refers to reality in life rather than brining in some unnatural events in the life. In reality shows, people try to achieve things differently as compared to what they do in real life. The acts of a person are influenced by the artificial environment, which is created by the show organ izers. In
Subscribe to:
Comments (Atom)