Through studies performed on sleep-deprived rats, experimental results have shown a decrease in cellular activity in the hippocampus. The hippocampus is responsible for most of the brain’s memory processing. When entering into sleep deprivation, the brain will experience consequences such as a failure for the hippocampus to encode, consolidate, or retrieve signals powering memory processing. As a result, researchers are looking for cellular characteristics that could lead to further details into the relationship between sleep deprivation and memory impairment. There are several different ways memory can be disrupted, one suggested in being an imbalance of neurotransmitters in the hippocampal region of the brain. Both hormonal and oxidative stress are also factors that are observed to play major roles of memory impairment in the hippocampus. These …show more content…
However, scientists are beginning to uncover that stress can also inhibit the plasticity and neurogenesis within the hippocampus. By inhibiting these processes, stress can negatively influence the mechanism responsible for memory consolidation in the brain. These effects, if not treated promptly with suitable sleep, could have harmful and damaging effects on nerve cells in the hippocampus. By identifying these effects within sleep deprivation, scientists can formulate new effective drugs and mechanisms to enhance memory impairment caused by sleep loss. Chronic sleep loss is becoming more common in modern culture and less restricted to sleep-deprived diseases such as insomnia. Suggested to be the result of a number car, industrial, medical, and other occupational accidents, sleep deprivation is beginning to be recognized as a public concern. As a result, the Centers for Disease Control
Sleep is important to the brain, because it is believed that when we sleep it restores brain chemicals and provides rest to the body.
Many people underestimate the importance of sleep, and the story of my close friend Joey is just one among many other stories that involve people killing either themselves, or someone else while asleep at the wheel. Sleep is essential for a person's health and well-being, and deprivation can carry many detrimental implications. Accumulating research on both people and animals has revealed staggering pysiological and behavioral consequences related to sleep deprivation. Sleep is necessary for the human body to replenish its energy supply, as well as shar...
The consolidation of declarative memories is enhanced during the retention intervals filled with sleep. Studies state that recently gained declarative memories are unconsciously reactivated especially during periods of slow wave sleep. This results in a better transfer and integration of temporarily stored memories in the hippocampus into the neocortical regions. This study was based on the possibility of improving the memory reactivation process by presenting an external recall cue during the slow wave sleep and the external recall cue that was used was an
2014). The second study, Cherdieu, et al. (2014) examined whether age worsens sleep-dependent memory consolidation in people. Surprisingly, the researchers found that sleep did not enhance memory in older adults like it does for younger adults. It was also found that younger adults benefited from sleep, whereas forgetting in the older adults were comparable between the sleep and wakefulness group. Lastly, the third study by Schönauer, et al (2015) examined whether sleep after learning, compared to sleep deprivation or day-wake periods, shows a lasting beneficial effect on memory performance. The researchers found that sleep deprivation before recall did not have a lasting effect on performance and that performance was significantly enhanced immediately after intervals of no more than 24 hours. Schönauer, et al (2015) also suggested that the hippocampus serves as a buffer during retention interval, and consolidation occurs during delayed sleep. Also since the mirror-tracing task is non-hippocampal dependent suggest that there are more than one sleep-related memory consolidation process. All three of the articles relate to each other because they examine the role of sleep on memory
Taylor, Hannah. “Sleep deprivation and its effects on the brain” Daily Emerald. 28 Oct. 2013. Web. 1 April. 2014.
The extent and eminence of sleep has a profound impact on learning and memory. A sleep deprived person cannot focus attention optimally and cannot learn efficiently. “Sleep is a biological phenomenon that is modulated by the plasma concentration of melatonin and with influence on behavioral aspects and memory” ( Donadon 2016). All through life sleep plays a biological part in memory. Sleep has a role in the alliance of memory which is essential for learning new information. As some may know, many college students do not get adequate sleep but what effect does this have on their way of learning?
Many articles and journals were reviewed concerning sleep, sleep deprivation and neurogenesis. Since the effects of sleep as it directly relates to neurogenesis is a broad topic and relatively recent study, there has not been much up to date research on their correlation. Even though a few articles found are current, it may not be enough which will cause the initial research question to become a bit narrower. The question will be changed to, how does sleep deprivation affect the hippocampal region of the brain? The following paragraphs seek to review, summarize and integrate each of the sources found.
Alzheimer’s disease affects the brain’s intellectual functions due to the memory deteriorating and is the common cause of dementia. Sleep regulation is disrupted and sleep is in fragments during the night with a reduced period of deep REM sleep (Epstein,
Everyone knows that sleep loss can make you feel sullen and confused. But there is a surprising effect of sleep loss that we might not know
Sleep is among the most important things our body does to keep itself healthy and functioning properly. Without sleep, or without enough sleep, we can experience a large number of serious health consequences, such as diabetes, high blood pressure, irregular heartbeat, heart attack(s), depression, weight gain, and even death (“10 Dangerous Side Effects of Lack of Sleep”). Some individuals experience sleep loss simply as a result of poor lifestyle habits, such as staying up too late at night, watching television or using the computer immediately before bed, consuming too much caffeine, and so on, for others it is caused by health circumstances which are side of their control, namely: sleep disorders.
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
Important public policy issues have arisen in our modern 24-hour society, where it is crucial to weigh the value of sleep versus wakefulness. Scientific knowledge about sleep is currently insufficient to resolve the political and academic debates raging about how much and when people should sleep. These issues affect almost everybody, from the shift worker to the international traveler, from the physician to the policy maker, from the anthropologist to the student preparing for an exam.
Sleep is very important to our body for relaxation, preparing ourselves for the next day. Unfortunately, poor sleeping quality is prevalent in modern cities such as Hong Kong. An increasing number of university students have stated sleep problems. (Suen, Hon & Tam, 2008). Meerlo, Mistlberger, Jacobs, Heller & McGinty (2009) have reported that prolonged sleep loss may affect the rate of neurogenesis...
Rasch, Björn, and Jan Born. "About Sleep 's Role in Memory." Physiological Reviews. American Physiological Society, n.d. Web. 06 May 2016.
Humans are fragile beings that need only a few things to survive and live in this evolving world. One of them is the essential need for sleep. Many humans do not receive the required amount of sleep each night and this occurs in individuals of all ages. Not sleeping enough and not having the ability to get a restful sleep can result in dangerous mental and physical affects for that particular individual. The continuous deprivation of sleep can affect your health, your daily performance, and a myriad of other aspects of your daily life. “We are a society that burns the candle at both ends, a nation where people stay up all night to study, work, or have fun. However, going without adequate sleep carries with it both short- and long-term