Theories on Stages of Sleep

Theories on Stages of Sleep Paul Stolt Jr In our textbook it says that, â€Å"REM sleep makes up the remaining 20 per cent of your sleep time. It is pronounced â€Å"rem† and stands for rapid eye movement sleep because your eyes move rapidly back and forth behind closed lids† (Plotnik Kouyoudmjian, 2014, p. 153). The brain waves that are present in REM sleep are beta waves, which is the same kind that are present when a person is awake. Also, during this stage, the body is alert, but the muscles are paralyzed, thus prohibiting movement during this time. The REM sleep stage is the one that the process of having dreams occurs in. According to our text, a person passes through the REM sleep stage about five or six times a night. The intervals in between these stages are approximately half an hour to an hour and a half long. Most people are in the REM sleep stage for about half an hour to forty-five minutes, before they enter the NREM, or Non REM, sleep stage. An individual’s heart rate and blood pressure a re typically higher in REM, indicating a more alert state in this stage than in the non REM stage. Creative thinking processes are more present during REM sleep, probably due to a lack of activity in the areas of the brain that are responsible for critical thinking. Students need REM sleep in order to transfer the knowledge that they have stored throughout the day in short term memory, into long term memory. This stage helps to promote the encoding process, which is responsible for the transfer. Once the information is encoded during the REM stage, it becomes easier to recall at a later time for tests and exams. There is an indication in the human body of the need for REM sleep, because if someone has not spent enough time in this stage the previous night, the body will compensate by spending more time in REM the following night. The Alpha stage occurs right before people drift off to sleep. During this stage, people start to feel tired and relaxed, often just lying in bed with their eyes closed, and random thoughts, such as activities of the previous day, or the plans that they may have the following day, present in their thoughts. According to the text book, â€Å"Alpha waves have a low amplitude and high frequency, (8 to 12 cycles per second)† (Plotnik Kouyoudmjian, 2014, p. 152). After the alpha stage, Non REM Sleep, or NREM for short, occurs. This stage is where most people spend 80 per cent of their time while sleeping. This type of sleep is divided into four stages, each stage being associated with unique brain wave patterns and biological responses (Plotnik Kouyoudmjian, 2014). In the first stage of Non REM sleep, there is a transition that occurs from being wide awake and alert, to drifting off to sleep. This stage usually lasts from about one to seven minutes long. The text says that this s tage is â€Å"marked by the presence of theta waves, which are lower in amplitude and lower in frequency (4 to 7 cycles per second) than alpha waves† (Plotnik Kouyoudmjian, 2014, p. 152). Next, the person passes through the second stage of sleep. In the second stage, there are rapidly occurring periods of what researchers call sleep spindles. In this stage, physiological processes such as breathing, a person’s body temperature, and their heart rate slowly decrease, and they become harder to wake up. This stage is what most researchers define as a person being asleep. Next, after about half an hour to forty five minutes of falling asleep, the individual enters stages three and four of Non REM sleep. Delta waves are present in stage three, and these are defined as â€Å"large, slow brain waves, meaning they have very high amplitude and very low frequency† (Plotnik Kouyoudmjian, 2014, p. 152). As the person moves on to stage four in Non REM sleep, they experience a significant increase in the presence of Delta waves. During this stage, biological processes such as heart rate, breathing, body temperature, and the flow of blood to the brain are dramatically decreased, and the body secretes a substance called GH, or growth hormone, which is responsible for controlling the metabolic rate in the body, physical growth in the body, and the development of the human brain. After this stage, the individual passes back through the second and third stages of Non REM, and enters into the dreaming, or REM, stage of sleep. The necessity of sleep for a living organism can be explained in two logical ways. The first is that the body repairs and restores itself while it is resting. In one theory, the human brain repairs and restores itself while sleeping. It has also been proven that chemicals that are harmful to our system are flushed out during the sleeping process. Some research has also suggested that the immune system is impaired because of sleep deprivation (National Institute of Neurological Disorders and Stroke, 2013). The second way that it can be explained is the Conservation theory. This theory suggests that the need to conserve energy at night for the human race promoted the need for sleep. In other words, since it was dark out, and there was little light to be able to see, that time was better spent resting instead of moving about. It would seem that as an individual goes throughout their lifetime, the need for sleep is greatest during the early years, and less as they get older. When an infant is born, the average time that they spend asleep is about seventeen hours a day, with half of that time spent in REM sleep. Then, when they get a little older, such as approximately around four years old, they sleep about ten hours a day, with about 25 to 30 per cent of that time spent in REM sleep. A little later, around the teenage years, the amount of sleep that is required is about 9 hours per night, with the trend being later bed times, and the teenagers waking up later during the day. A couple years later, at about nineteen to twenty years of age, the amount of sleep required by the adolescents is about seven to eight hours per night, with twenty per cent of that time spent in REM. As an adult reaches the golden years, the amount of sleep required is six and a half hours per night, with approximately twenty per cent being spent in REM sleep. The text defines the circadian rhythm as a â€Å"biological clock that is genetically programmed to regulate physiological responses within a time period of twenty-four hours (Plotnik Kouyoudmjian, 2014, p. 150). The circadian clock is genetically set for about 24 hours 18 minutes. The clock is reset by the retinal cells, which act like sensors that let in sunlight, and send signals to the brain, resetting it by eighteen minutes each day. However, there are quite a few problems associated with the circadian clock by individuals who work midnight shifts or have to fly frequently for their job, thereby getting a condition known as jet lag. First, let’s discuss individuals that work the midnight shift. These individuals go against the natural instinct of their circadian clocks, resulting in decreased performance of their cognitive and motor skills. Also, people who change shifts a lot, such as working swing shift, cause a lot of physical stress in their bodies and psychological stress in their minds. Secondly, people with jet lag often experience problems with feeling tired all the time, difficulty in being able to concentrate on a particular task, and reduced ability in their ability to use logical thinking, reasoning, or remembering. It takes people with jet lag about a day per hour of difference between time zones to recover. However, there is hope. Charles Czeisler developed a new treatment called light therapy in 1994. This treatment uses artificial light to combat fatigue in both people who work the midnight shift, and those with jet lag. Next I would like to talk about the effects that sleep deprivation has on individuals. People with sleep deprivation run the risk of having impaired immune systems, with the potential for increased infections and diseases. They also experience increased stress levels, elevated blood pressure, and an increased build-up of plaque in the arteries, with a severe potential for heart attack or stroke. Other problems they experience include the risk of obesity and diabetes, difficulty in recognizing words, and doing ordinary math problems. They are more susceptible to increased irritability, and increased difficulty in making logical and rational decisions. Terms and Concepts Perceptual Threshold -The perceptual threshold is the smallest thing that can be perceived, or recognized, by the human senses. Sensation A sensation is a relatively meaningless piece of information, that results when the brain processes electrical signals that come from the sense organs. Stimulus A stimulus is any change of energy in the environment, such as light waves, sound waves, mechanical pressure, or chemicals. Structuralists Structuralists are psychologists who believed that we add together thousands of sensations to form a perception. Gestalt Psychologists Gestalt psychologists are psychologists that believe that our brains follow general rules that specify how individual elements are to be organized into a meaningful pattern, or perception. Depth Perception Depth Perception is the ability of the eye and brain to add a third dimension called depth to all visual perceptions, even though the images being projected might only be two dimensional in nature. Consciousness Consciousness describes different levels of awareness of one’s thoughts and feelings. Biological Clock The biological clock is an internal timing device that is genetically set to regulate various physiological responses for different periods of time. Stages of Sleep Stages of sleep refer to the distinctive changes in the electrical activity of the brain, and accompanying physiological responses to the body that occur as someone passes through different phases of sleep. Hypnosis Hypnosis is a procedure in which a researcher, clinician, or hypnotist suggests that a person will experience changes in sensations, perceptions, thoughts, feelings, or behaviors. Stimulants Stimulants are chemical substances such as cocaine, amphetamines, caffeine, and nicotine that increase activity of the central nervous system and result in heightened alertness, arousal, euphoria, and decreased appetite. Opiates Opiates are chemical substances such as opium, morphine, and heroin that produce three predominant effects in the central nervous system: the reduction of pain, opiate euphoria, a pleasurable state between waking and sleeping; and constipation. Hallucinogens Hallucinogens are drugs that affect someone’s mind or behavior and have the ability to produce changes in perception, thought, emotion, and awareness. Classical Conditioning Classical Conditioning is a kind of learning in which a neutral stimulus acquires the ability to produce a response that was originally produced by a different stimulus. Operant Conditioning Operant Conditioning is a kind of learning in which the consequences that follow some behavior increase or decrease the likelihood of that behavior’s occurrence in the future. Cognitive Learning Cognitive Learning is a kind of learning that involves mental processes, such as attention and memory, may be learned through observation or imitation; and may not involve any external rewards or require the person to perform any observable behaviors. Generalization Generalization is the tendency for a stimulus that is similar to the original conditioned stimulus to elicit a response that is similar to the conditioned response. Discrimination Discrimination occurs when an organism learns to make a particular response to some stimuli but not to others. Extinction Extinction is a procedure in which a conditioned stimulus is repeatedly presented without the unconditioned stimulus, and, as a result, the conditioned stimulus no longer elicits the conditioned response Thorndike Thorndike was an American psychologist who lived during the 1800’s and formulated the law of effect, which stated that if some random actions are followed by a pleasurable consequence, such actions are strengthened and will likely occur in the future. Skinner Skinner was a psychologist who developed a theory known as the operant response during the 1930’s, which says that â€Å"An operant response is a response that can be modified by its consequences and is a meaningful unit of ongoing behavior that can be easily measured† (Plotnik Kouyoudmjian, 2014, p. 214). Reinforcers Reinforcers are â€Å"consequences that occur after a desired behavior and increase the chances that the behavior will occur again† (Plotnik Kouyoudmjian, 2014, p. 218). Punishment A punishment is a stimulus that â€Å"stops or decreases the occurrence of a behavior† (Plotnik Kouyoudmjian, 2014, p. 219). Schedules of Reinforcement Schedules of Reinforcement are programs or rules that determine how and when the occurrence of a response will be followed by a reinforcer (Plotnik Kouyoudmjian, 2014, p. 220). Spontaneous Recovery Spontaneous Recovery refers to either a temporary recovery in the rate of responding in operant conditioning, or the temporary occurrence of the conditioned response in the presence of the conditioned stimulus in classical conditioning (Plotnik Kouyoudmjian, 2014, p. 222). Behavior Modification â€Å"is a treatment or therapy that changes or modifies problems or undesirable behaviors by using principles of learning based on operant conditioning, classical conditioning, and social cognitive learning† (Plotnik Kouyoudmjian, 2014, p. 232). References National Institute of Neurological Disorders and Stroke. (2013, December 5). Brain Basics: Understanding Sleep. Retrieved January 20, 2014, from National Institute of Neurological Disorders and Stroke: www.ninds.nih.gov Plotnik, R., Kouyoudmjian, H. (2014). Introduction to Psychology. Belmont, CA, USA: Wadsworth Publishing. Retrieved January 13, 2014

Comparing Coleridge and Wordsworths Views on Peoples Relationship to

Comparing Coleridge and Wordsworth's Views on People's Relationship to Nature Although Wordsworth and Coleridge are both romantic poets, they describe nature in different ways. Coleridge underlines the tragic, supernatural and sublime aspect of nature, while Wordsworth uses anecdotes of everyday life and underlines the serene aspect of nature. In order to imply a connection between nature and the human mind, Wordsworth uses the technique of identification and comparison whereas Coleridge does the opposite in 'The Ancient Mariner' and 'Kubla Khan'. Both admire nature's healing strength and hope that their children will grow up in a natural environment instead of growing up in cities. For Wordsworth nature seems to sympathise with the love and suffering of the persona. The landscape is seen as an interior presence rather than an external scene. His idea is that emotions are reflected in the tranquillity of nature. On the contrary, Coleridge says that poetry is clearly distinguished from nature. Reading the poems of both Wordsworth and Coleridge, one immediately notes a difference in the common surroundings presented by Wordsworth and the bizarre creations of Coleridge. Thus they develop their individual attitudes towards life. I will look at differences and similarities concerning people?s relationship to nature in poems by Coleridge and Wordsworth such as: ?The Ancient Mariner?, ?Kubla Khan?, ?The Nightingale,? ?Lucy?, ?Tintern Abbey,? ?There was a boy?, ? Old Beggar?, ?I Wandered Lonely as a Cloud? and "Frost at Midnight". In ?The Ancient Mariner,? Coleridge demonstrates how violating nature and her subjects brings doom to the infracted. In this poem, the poet emphasises the vengeful, dark side ... ...heir respective views on nature. Wordsworth illustrates man?s necessary bond to nature, one that was being destroyed by state men. Coleridge chooses to present nature as a natural law that one should not violate. Coleridge?s ?Ancient Mariner? poem makes me think of a painting by the romantic painter Turner. Especially of his painting of ? the slave ship? painted in 1840. This painting depicts a slave ship in the red sunset heading into a typhoon creating an anxious feeling. I think that Coleridge poem can be compared with Turner and his apocalyptic view of nature, and Wordsworth can be compared to Constable with his peaceful landscape of English countryside. Bibliography: Holmes, Richard. Coleridge: darker reflection: London: HarperCollins, 1998 Abrahms, M. H, eds. The Norton Anthology of English Literature, vol. 2, 7th edition. New York, 2000

Acc/230 Week 2 Assignment Lucent Technologies Case

Week 2 Individual: Lucent Technologies Case Assignment: Read Case 2. 1: Lucent Technologies on pp. 79 and 80 (Ch. 2) of the text. Compose a 500- to 750-word paper that includes your answers to questions 2-4 on p. 79. Question #2: Evalutat the asset, debt, and equity structure of Lucent Technologies, as well as trends and changes found on the common-size balance sheet. After reviewing the case of Lucent Technologies, we discover that the assets for Lucent Technologies suffered a decline between 2003 and 2004.According to the information provided in the case revealing, the current assets in 2003 was 49. 4% of Lucent Technologies total assets, whereas the current assets in 2004 decreased to 48. 5%. Although, after reviewing the case the percentage of inventory rose from 4. 0% in 2003 to 4. 8% in 2004. We can then calculate there is about a 20% increase in the total inventory holdings. Also it is apparent that Lucent Technologies entire assets in 2003 was 24% and had a decrease in 2004 t o about 20%. This can be measured by the company's cash equivalents and cash.The total debt structure of Lucent Technologies decreased between 2003 and 2004. Lucent Technologies had a decrease in their current liability. In 2003 their current liability was 25. 6% and decreased to 24. 3% during 2004. According to the debts that increased from 23% in 2003 to 26. 4% a year later in the company's total liability, the debts of Lucent Technologies would be considered long term. In 2003, Lucent Technologies had decreased in the representation of total liabilities and shareholders equity on the equity side for Lucent Technologies when compared to a year later.Improvements can happen and the situation of the company now can improve as the year progresses so the company won't look deficit. Question #3: What concerns would investors and creditors have based on only this information? Based on only this information for Lucent Technologies, a concern investors and creditors would have when lookin g at this balance sheet would be the debt structure. When looking at the given information we see a decrease in the total liability, but an increase in the long term liabilities.This could caurse harm to the company since the current liabilities are decreasing from one year to the next. Although, since there is an increase shown for the long term liabilities it balances out to prevent showing a loss. The equity portion is in a superior position for the company. In conclusion, with the given information, Lucent Technologies has been improving looking at 2003 and 2004 and will continue to improve steadily. Question #4: What additional financial and non financial information would investors and creditors need to make investing and lending decision for Lucent Technologies?Some additional financial information that investors and creditors would need in order to make investing and lending decisions for Lucent Technologies would be the company's financial statements. Investors and creditor s would need financial statements for Lucent Technologies because the financial statements contain all the financial information that the investors and creditors would need to make sound investing and lending decisions for Lucent Technologies. The financial statements are the inner workings in a company.The financial statements of a company can be looked at and compared with previous years, in order to find trends in the financial statements and guide investors and creditors to figure out where the company stands and what direction the company may have facing them. Some nonfinancial information that investors and lending decisions for Lucent Technologies would be to know the operating units were created to work together in order to provide cost-efficient solutions and innovative for customers. The business structure can sometimes play a key roll in financial decisions.

The Odyssey Themes Of Loyalty, Justice, And Hospitality

As children, humans are taught to analyze. They are taught to look at a piece of information and find a deeper meaning within it. Students analyze statistics, body language, beliefs, and works of literature. When teachers teach about analyzation within works of literature, most attempt to have a student find a theme, or what the author is trying to teach the reader. While some books only have one themes, others have a multiple. In one of Homer s most famous pieces of literature, various themes can be found. Throughout The Odyssey, three major themes of loyalty, justice, and hospitality are present. Loyalty is a basic human virtue that is glaringly visible in this book. First of all, Odysseus crew is aggressively loyal to him. The book starts off with Odysseus just finishing the Trojan War. His crew went through the war lasting a decade with the hero and never once left his side. All of his men were willing to go to take their lives for Odysseus, which is the ultimate form of loyalt y. Odysseus wife, Penelopeia’s emotions show immense loyalty towards Odysseus as well. She has over 100 suitors vying for her hand in marriage and tries to delay picking one as long as possible. Penelopeia creates a intricate scheme to hold them off. She tells them that they have to wait until I(Penelopeia) finish this cloth, for I don t want to waste all the thread I ve spun...there she was all day long working away at the great web; but at night she used to unravel it byShow MoreRelatedComparing The Metamorphoses Of Ovid And Homer Essay1200 Words   |  5 Pagesand exemplify the various personalities of the gods can be found in Ovid: The Metamorphoses of Ovid and Homer: The essential Homer: Selections from the Iliad and the Odyssey. Although the ways man and the gods communicate and get each other’s attention are different, there are reoccurring and overarching themes such as desire, and loyalty that make each intervention between gods and mortals similar. To begin with the differences, both mortal and immortals have their own way of communicating and gettingRead MoreThe Odyssey Telemachia2492 Words   |  10 PagesTHE ODYSSEY Ââ€" Books 1-4 1. The story of Agamemnon, Aegisthus, Orestes and Clytaemenstra is a recurring theme during these first 4 books of the odyssey. The references I have picked up on throughout the four books are as listed: - Book 1, page 4, Section 29-48. This is the first reference to the story of Agamemnon, Aegisthus, Orestes and Clytaemenstra. In this, it is at an assembly of gods in Zeus palace. Zeus, who would open discussion among them, was in thought of the handsome Aegisthus. ZeusRead MoreThe Odyssey by Homer1316 Words   |  6 Pagesof the time’s culture appropriately. This has been a necessary course of action, to ensure their writing conveys the quest and its respective elements in a manner that will be understood by the responder in the relevant time period. The texts ‘The Odyssey (Homer 8th Century BC), In the Shadow of No Towers (Art Spiegelman 2004) and The Picture of Dorian Gray (Oscar Wilde 1890) have appropriated the archetypal quest in their respective time periods to reflect the values of their context. â€Å"The hero venturesRead MoreAnalysis Of The Epic Of Gilgamesh And Odyssey Essay1548 Words   |  7 PagesEpic of Gilgamesh of the Sumerians and Akkadians and the Odyssey from Homer of the Greeks. We all can agree that these epic poems or at most the authors did not view women with our modern perspective – equality among gender. However, we cannot deny that female characters helped set the path of the epic heroes’ journey to their goals. In these epic poems, women are portrayed as figures and themes of knowledge, motherhood, seduction. These themes and figures are shaped through interaction between womenRead More Importance of the Telemachy in Developing Major Themes of Odyssey3687 Words   |  15 PagesThe Importance of the Telemachy in Developing Major Themes of Odyssey      Ã‚  Ã‚   As we begin to read the Odyssey, one of the surprising facts is that we do not meet the famed hero until we are well into Book V, on Calypsos island of Ogygia. However, during these introductory four books, we learn of the situation in Ithaca, Odysseus plight, some of the most important themes of the story and of course Odysseus son Telemachus. Homer keeps us in suspense, building the reputation of Odysseus by theRead MoreEssay on The Odyssey21353 Words   |  86 PagesThe Odyssey Set in ancient Greece, The Odyssey is about the hero Odysseus long-awaited return from the Trojan War to his homeland, Ithaca, after ten years of wandering. The current action of The Odyssey occupies the last six weeks of the ten years, and the narrative includes many places - Olympus, Ithaca, Pylos, Pherae, Sparta, Ogygia, and Scheria. In Books 9-12, Odysseus narrates the story of his travels in the years after the fall of Troy, and this narrative includes other far-flungRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 PagesEmployers Owe Workers More Satisfying Jobs? 74 glOBalization! Culture and Work–Life Balance 76 Self-Assessment Library Am I Engaged? 78 Myth or Science? â€Å"Favorable Job Attitudes Make Organizations More Profitable† 83 Point/Counterpoint Employer–Employee Loyalty Is an Outdated Concept 87 Questions for Review 88 Experiential Exercise What Factors Are Most Important to Your Job Satisfaction? 89 Ethical Dilemma Bounty Hunters 89 Case Incident 1 Long Hours, Hundreds of E-Mails, and No Sleep: Does This SoundRead MoreManagement Course: Mba−10 General Management215330 Words   |  862 Pagesproduct or service development should be What the appropriate time horizons for investments and financial planning are How to implement productive cost reduction How to recognize when regular audits of quality compliance will not guarantee customer loyalty Businesses are growing more intricate and at warp speed. For example, consider the effects of venture capital financing, multiple marketing channel distribution, and entirely new patterns of employee recruiting, development, and training. In addition