Past evidence suggests that sleep deprivation negatively affects solidification of memories. This experiment’s role was to confirm whether sleep deprivation does affect memory consolidation. Previous experiments also have shown, in human studies, that learning is improved only through a night of sleep and not through an equal amount of time wakefulness. (Walker, 2005; walker et al., 2003) It has also been noted in rodent studies that that sleep loss that after training does not produce a memory deficit four to six hours after training. (Bjorness et al., 2005; Graves et al., 2003; Smith et al., 1998; Smith & Rose, 1996) The experimenters’ final hypothesis is that sleep deprivation soon after the delay-conditioned task will cause the rats to …show more content…
During training and testing only one rat would be placed inside the testing chamber at a time. The first day the rats were allowed to explore the chamber for 1 hour. On day 2 the rats were placed in the testing chamber and where given an hour to again explore. Then an experimenter would present fruit juice (UC) randomly throughout the hour. On day 3 they were given an hour in the chamber. During this hour the rats were exposed to a house light conditioned stimulus (CS) that was fixed on the roof of the chamber above a window. The window would open and the rats would have to put their head through the window to obtain the juice and every head probe through the window was recorded. The rats would then be guided towards the window to show them the fruit juice. This training was repeated about 15-20 times. If the rats could not learn the first session, they would be trained again the next day. Out of 25 rats only 3 did not learn the first training session and had the process repeated the next day. Of the 3 rats that repeated training, one was placed into (SD) and the other 2 where placed into (NSD) through random assignment. On day 4 testing started at 10:30 a.m. for 1 hour. The rats where placed into the testing chamber and were given 5 minutes to explore. After 5 minutes the house light (CS) was …show more content…
NSD and SC rats had an increase in performance in testing (NSD rats: Tukey p < 0.001; SC rats: Tukey p < 0.001) (Figure 2) were as SD showed much worse results (Tukey p < 0.001) (Figure2). SD rats also should a decline in head pokes compared to the training (Tukey p < 0.001) (Figure2). All animals showed similar amount of head pokes during training period meaning they were all equally trained (Figure2).
Sleep deprivation is a common condition that occurs if you don’t get enough sleep. In case of sleep deprivation people have trouble falling and staying asleep for a long period of time. In order to understand how serious sleep deprivation can be, one must need to know causes and consequences of sleep deprivation, how much sleep do we need? What does sleep do for us? And how we can cure sleep deprivation.
Hence, in his experiment, Skinner placed rats in the Skinner box and observed its’ behaviors. Initially, these rats would be randomly moving around exploring, and would usually press the bar accidently. At this point, a food pellet would drop into the tray. He observed that if a hungry rat receives a pellet of food when it presses a lever after, maybe 2 minutes have elapsed since the last pellet, then its response rate increases with the passage of time. In other words, after the first incident of the food pellet dropping into the tray, the rate of the rats pressing the bar rises dramatically and remains high until the rats hunger were satisfied. Thus, this study showed a clear association made between the behavior and the consequence of that behavior. In this case, the consequence of a behavior encouraged the repetition of that behavior also known as positive reinforcement.
Sleep deprivation is a commonplace occurrence in modern culture. Every day there seems to be twice as much work and half as much time to complete it in. This results in either extended periods of wakefulness or a decrease in sleep over an extended period of time. While some people may like to believe that they can train their bodies to not require as much sleep as they once did this belief is false (1). Sleep is needed to regenerate certain parts of the body, especially the brain, so that it may continue to function optimally. After periods of extended wakefulness or reduced sleep neurons may begin to malfunction, visibly effecting a person's behavior. Some organs, such as muscles, are able to regenerate even when a person is not sleeping so long as they are resting. This could involve lying awake but relaxed within a quite environment. Even though cognitive functions might not seem necessary in this scenario the brain, especially the cerebral cortex, is not able to rest but rather remains semi-alert in a state of "quiet readiness" (2). Certain stages of sleep are needed for the regeneration of neurons within the cerebral cortex while other stages of sleep seem to be used for forming new memories and generating new synaptic connections. The effects of sleep deprivation on behavior have been tested with relation to the presence of activity in different sections of the cerebral cortex.
Millions of people suffer from the same tossing and turning every which way, getting their sheets all disarranged and their insistent minds abundantly worse. Patients often proclaim indications of insomnia while sitting in the family health clinic. Insomnia traits include hindrance falling asleep, continueing to awaken, and rejuvenating before wanted. One may suffer from insomnia if one shows signs of an increased difficulty in attentiveness, decreased communal or scholastic skills, and a diminished mood or enthusiasm. (Foldvary-Schaefer 111). Countless individuals deal with insomnia for a large amount of their lives and some choose differing treatments, while some do not use any treatments at all. While never being uncommon, the amounts of causes leading to insomnia come in boundlessly; finding new studies and stories every day.
Is sleep important for memory consolidation? Past research has found that sleep is an important factor in the consolidation of newly acquired memories; however, this consolidation often depends on the specific memory as well as when (e.g., time after learning) sleep occurs. It is important to note that sleep is not constant, throughout the night. Sleep is a cycle that is broken down into rapid eye movement (REM) and non-rapid eye movement (non-REM) sleep (Stickgold, 2005). Non-REM consists of sleep stages 1 through 4, in which stages 3 and 4 constitute what is known as slow-wave sleep (SWS) (Rasch & Born, 2008). Moreover, the construct of memory is often divided into different types of memories, declarative (e.g., facts and events) and non-declarative (e.g., procedural skills) (Stickgold, 2005). When discussing memory consolidation, research has defined it as a progression of memory stabilization that leads memories to become resistant to interference (Stickgold, 2005). Results from past research indicate that memory consolidation occurs through the reactivation of memories during sleep, which enhances and stabilizes the memory (Diekelmann & Born, 2010).
...ep. There are events in sleep that are associated with synaptic modification, which is the basis of brain rewiring that enhances cognition. There is evidence that sleep accelerated transcription of cortical genes that are associated with protein synthesis9. These newly generated proteins are known to be required for strengthening of existing synapses and building new synapses. Studies have found increase of factors associated with brain-plasticity and enhanced learning during sleep5. These factors include phosphorylated or activated CREB, a transcriptional factor, as well as Arc, BDNF, and NGFI-A. These evidence help explain how sleep can influence brain rewiring through synaptic modification. This mechanism helps explain how sleep can modify the brain and ultimately enhance learning. This is a strong evidence that supports the synaptic downscaling hypothesis.
Sleep is one of our basic needs to survive, however in the modern days sleep deprivation in increasing more and more each day, causing accidents and medical problems for the people and the community. This essay will look at the meaning of sleep and sleep deprivation and the basic perspectives on what motivates sleep and sleep deprivation with the five perspectives; evolutionary, psychodynamic, behaviourist, cognitive and the hierarchy of needs. This essay will also evaluate the best perspective to eliminate sleep deprivation with the cases studies discussing the general hypothesis of sleep and sleep deprivation.
Losing sleep produces significant consequences to the overall health of a body. There have been numerous tragedies in history linked to errors by tired, sleep-deprived humans. Two major events caused by fatigue were the Exxon Valdez Oil Spill and the NASA Challenger shuttle explosion. The horrendous outcomes of these events are why humans need a better understanding of how sleep affects their quality of life. (NSF) When sleep is lost, there may be detrimental effects to your health and the well-being of others.
In the field of psychology, the concept of sleep has raised multiple questions over time. Psychologists are constantly doing studies on people while they sleep to diagnose sleep disorders. Using EEG readings, they study and record brain waves and muscle movements that occur while the participant is asleep. Sometimes they even wake the person up so they can observe what happens to the brain when you are woken up in different stages of sleep. In order to diagnose sleep disorders, we must first understand what exactly sleep is. Sleep is generally made up of multiple 90-minute cycles. Every time sleep occurs, we cycle through four stages followed by a fifth stage of REM (Rapid Eye Movement). The final stage proves the brain is functioning even
For the following experiments, 44 virtual rat subjects, each supervised by its own experimenter, were subjected to operant conditioning techniques, followed by extinction, secondary reinforcement and spontaneous recovery. Since the same program was used for each of the 22 subjects,
processing we split the 20 dogs into 4 random groups of 5. Between the 4 groups there was no
Insomnia Almost everyone experiences insomnia now and then. When one believes he must be in bed by a certain time every night or that he needs a certain number of hours of sleep, it may be the very thing that is preventing him from going to sleep (Munson 21). It is unfortunately true that many people still suffer from poor sleep but do not know that there are numerous programs that can help them. Insomnia, which is due to various causes and includes a vaiety of symptoms, can be reduced or eliminated in a number of ways. Stress is one of the main causes in determining insomnia. It is a fact of every day life and can be defined as any event which causes a significant emotional response. Happy occasions such as getting married, promoted, or going on a vacation can cause stress reaction, not only because because participation in the event is occurring but also in the preparation. More obvious events that occur throughout one's life are the loss of a job, a loved one, or the need for surgery. In such major life changes, the sources of the emotional response is much more easily identified (Shapiro MacFarlane Hussain 49). There are two types of stress: bad stress or negative stress which destroys your ability to operate at capacity, mentally and physically and good stress which improves your performance (Shapiro 49-50). There are different ways to reduce stress. One should try to find a job he really enjoys. It is not the stress of work that wears one out but the stress of frustration and failure. Two big causes of stress on the job are not knowing what is expected and not having adequate facts or tools. Escaping for a while is another method to help eliminate stress. One can visit a friend, go to a movie, or shop. When he returns, he can attempt to cope with the problem. However, it does not help to keep escaping, the individual should try to cope with problems as promptly as they arise (Hauri 111). Even though it is often difficult to make changes in lifestyle, the effort is worth it. Exchanging stress for a sense of control can lift a heavy weight from one's shoulders. The more control one has over his life during the day, the more likely it is that his night time sleep will become satisfying again (Hauri 113).
Sleep is a reversible, repetitive, and active behavior which plays different roles. These roles include restoration processes, memory consolidation, learning or growth. As argued out by Curcio, Ferrara and De Gennaro (2006), during sleep, neuro-cognitive, psychological, as well as behavioral processes take place. Many individuals sacrifice their sleep with an aim of carrying out extra activities. However, sleep loss has been found to have various negative effects. Some of these effects include impairment in psychomotor, neurocognitive performances, and sleepiness (Curcio et al., 2006). Results from recent studies have demonstrated that sleep plays an integral role in memory consideration and learning processes (Deregnaucourt et al., 2005 & Curcio et al., 2006). This paper will evaluate journals and other accredited sources of information in an effort to review, analyze, critique and synthesize works of other scholars on how sleep affects learning.
Rasch, Björn, and Jan Born. "About Sleep 's Role in Memory." Physiological Reviews. American Physiological Society, n.d. Web. 06 May 2016.
Sleep plays a vital role in a person’s mental well-being. Sleeping affects how well people think, react, work, learn, and get along with others. While a person is sleeping, his brain is preparing to help him learn and remember information. A good night’s sleep enhances learning and problem solving skills. It is very important for the students to have sound sleep as it can improve their concentration, memory and creativity. Furthermore, having enough sleep increases the ability to m...