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Obstructive sleep apnea essays
Sleep apnea in quizlet
Sleep apnea in quizlet
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Obstructive sleep apnea (OSA) is a disorder in which a person temporarily stops breathing during sleep. It can happen perhaps hundreds of times throughout the course of the night. The gaps in the breathing are known as apneas. The word apnea means the absence of breath. An obstructive apnea episode is defined as the absence of airflow for at least 10 seconds. Sleep apnea is almost always associated with snoring, disturbed sleep, and daytime sleepiness. Usually, people with the condition do not know they have it. Obstructive sleep apnea occurs when the tissues in the upper airways come too close to each other temporarily blocking the flow of air. It is defined as five or more episodes of apnea or hypopnea per hour of sleep in adults who have …show more content…
Central sleep apnea is not as common as OSA. It is caused by a problem in the central nervous system, most often a failure in the brain to signal the airway muscles to breathe. In cases, oxygen levels drop suddenly and usually the patient wakes with a start. Unlike those with obstructive sleep apnea, people with central apnea remember their awakenings. They experience less sleepiness in the daytime compared to people with obstructive sleep apnea. The causes of central sleep apnea include heart disease and heart failure. Mixed sleep apnea is when both central and obstructive happen at the same time. The third and last type of apnea is Upper airway resistance syndrome (UARS). It is a condition where people snore, wake up frequently throughout the course of the night, and have excessive daytime sleepiness. Nevertheless, they do not have breathing abnormalities characterized with obstructive sleep apnea. They also do not display reduction in blood oxygen levels. Unlike apnea, upper airway resistance syndrome is more common in women than men. But it is treated the same way as those of sleep …show more content…
Hypoxia refers to the absence of oxygen supply. Using neuro-imaging, research disclosed proof of hippocampal atrophy in people suffering from obstructive sleep apnea. It is found that more than 25% of obstructive sleep apnea cases, this issue results in irreparable problems in mentally manipulating non-verbal information as well as in executive functions and working memory regardless of years spent during continuous positive airway pressure (CPAP) treatment. Hippocampal atrophy is a form of brain damage that impacts or affects both memory and special navigation. It is often associated with memory loss conditions such as dementia and Alzheimer’s
Hippocampus is a small, curved region, which exists in both hemispheres of the brain and plays a vital role in emotions, learning and acquisition of new information. It also contributes majorly to long term memory, which is permanent information stored in the brain. Although long term memory is the last information that can be forgotten, its impairment has become very common nowadays. The dysfunction is exemplified by many neurological disorders such as amnesia. There are two types of amnesia, anterograde and retrograde. Anterograde amnesia is inability in forming new information, while retrograde refers to the loss of the past memory. As suggested by Cipolotti and Bird (2006), hippocampus’s lesions are responsible for both types of amnesia. According to multiple trace theory, the author suggests that hippocampal region plays a major role in effective retrieving of episodic memory (Cipolotti and Bird, 2006). For example, patients with hippocampal damage show extensively ungraded retrograde amnesia (Cipolotti and Bird, 2006). They have a difficult time in retrieving information from their non-personal episodic events and autobiographical memory. However, this theory conflicts with standard model of consolidation. The difference between these theories suggests that researchers need to do more work to solve this controversy. Besides retrieving information, hippocampus is also important in obtaining new semantic information, as well as familiarity and recollection (Cipolotti and Bird, 2006). For instance, hippocampal amnesic patient V.C shows in ability to acquire new semantic knowledge such as vocabularies and factual concepts (Cipolotti and Bird, 2006). He is also unable to recognize and recall even...
Understanding the reasoning behind amnesia and the hippocampus is of critical importance in neuroscience. Discussed by Cipolotti & Bird (2006), LTM impairments can lead to anterograde and retrograde amnesia if the medial temporal lobe (MTL) is damaged bilaterally. Specifically, the two most important types of LTM related to anterograde and retrograde amnesia are episodic and semantic memories. Conversely, many researchers have long debated the true functions of the hippocampus and have allowed two theories to emerge. The standard model of consolidation (SMC) assumes that the hippocampus is important in consolidating LTM, while the multiple trace theory (MTT) argues that information is encoded by specific memory traces by the hippocampus. These two theories help further explain the vast functions of the hippocampus. However, in regards to amnesic patients, the SMC has proven to be more widely accepted due to reported results implying that the hippocampus is important in consolidating LTM. In contrast, in anterograde patients, memories can be retrieved through recollection and familiarity. In fact, it has been proposed that the recol...
Even severely sleep deprived people are still able to perform to some degree on a verbal learning test. This implies that some other area of the brain must become active to compensate for the loss of temporal lobe functioning. In fact, activity can be seen in the parietal lobe that is not present during verbal learning tests using rested subjects (5). Greater activity within this region corresponded to better performance by subjects in research studies (7).
According to these two cases, these inspire us to understand that the hippocampus is an important brain region that is used for converting short-term memory into long-term memory.
Alzheimer’s disease is a complex illness that affects the brain tissue directly and undergoes gradual memory and behavioral changes which makes it difficult to diagnose. It is known to be the most common form of dementia and is irreversible. Over four million older Americans have Alzheimer’s, and that number is expected to triple in the next twenty years as more people live into their eighties and nineties. (Johnson, 1989). There is still no cure for Alzheimer’s but throughout the past few years a lot of progress has been made.
These factors are relevant to the psychological effects sleep apnea can have on people. Using research available and a discovery of links between psychological effects caused and related to sleep apnea reveal pertinent information helpful to people living with this medical condition. Sleep apnea is defined as brief periods of recurrent cessation of breathing during sleep caused by obstruction of the airway or a disturbance in the brain's respiratory center and is associated especially with excessive daytime sleepiness. Obstructive sleep apnea is defined as sleep apnea caused by recurring interruption of breathing during sleep due to obstruction usually of the upper airway especi...
We live our entire life in two states, sleep and awake1. These two states are characterized by two distinct behaviors. For instance, the brain demonstrates a well-defined activity during non-REM sleep (nREM) that is different when we are awake. In the study of sleep by Huber et. al., the authors stated that sleep is in fact a global state2. It is unclear whether this statement means that sleep is a state of global behavioural inactivity or the state of the global nervous system. The notion that sleep is a global state of the nervous system served as basis for sleep researchers to search for a sleep switch. The discovery of the sleep switch, in return, provided evidence and enhanced the notion that sleep is a global state of the nervous system. The switch hypothesis developed from the fact that sleep can be initiated without fatigue and it is reversible1. It was hypothesized that there is something in the brain that has the ability to control the whole brain and initiate sleep. Studies have found a good candidate that demonstrated this ability3. They found a group of neurons in the Ventrolateral Preoptic (VLPO) nucleus. It was a good candidate because it was active during sleep, has neuronal output that can influence the wakefulness pathway, and lesion in the area followed reduce sleep3. The idea that there is something that can control the whole brain and result sleep state supports the idea that sleep is a global state of the nervous system.
Sleep apnea is a very serious disorder because you can easily die from it because you totally stop breathing. The pause in breathing usually last only a few seconds but can happen 30 or more times in an hour. When breathing will resume in usually results in a snore or a choking sound. People with sleep apnea are usually tired more than most throughout the day because when they start to snore or have pauses in their breathing they move out of a deep sleep and into a light sleep. Sleep apnea is very hard for doctors to diagnose because it only happens when you are asleep. The only way to become aware of your sleep apnea is usually by a family member or a spouse who notices you snoring or have pauses when you are asleep. One of the most common types of sleep apnea is called obstructive sleep apnea. Obstructive sleep apnea is when your airway is blocked during sleep resulting in pauses of breath. This is most common in people who are overweight but doesn 't have to be. If sleep apnea goes untreated the consequences can be very dangerous. It could increase the risk of high blood pressure, heart attack, stroke, obesity, and diabetes. The four known ways to cure sleep apnea is lifestyle changes, mouthpieces, breathing devices, and
Sleep apnea is a sleep disorder in which breathing stops and starts repeatedly. Experts have estimated that 18 million Americans are affected by sleep apnea. There are three main types of sleep apnea. Obstructive sleep apnea is the most common form that occurs when throat muscles relax. Central sleep apnea occurs when your brain does not send proper signals to the muscles controlling breathing and Complex sleep apnea syndrome, a combination of both obstructive and central sleep. Symptoms of sleep apnea include loud snoring, breathing cessation, abrupt awakenings accompanied by shortness of breath, dry mouth, morning headaches, insomnia, daytime sleepiness,
Anterograde Amnesia (AA) is commonly known as short term memory loss. It is the inability to form any new memories after a neurological or psychological trauma in the brain. “Current definitions of anterograde amnesia emphasize the presence of severe and permanent deficits for the recall of recent events (typically with poor recognition) that contrast with intact short-term memory, IQ, semantic memory, skill learning, simple classical conditioning, perceptual learning, and priming” (Aggleton, 2008, p. 1442). Also, according to Aggleton, AA causes the inability to recall autobiographical events (episodic memory). Research shows that damage to the diencephalon or frontal lobe can cause AA. Damage to the diencephalon impairs memory performance because it encodes new experiences for future recall and damage to the frontal lobe of the brain weaken memory performance because the it is involved in regulates access explicit memory (Mendev 2007). Duff, Wszalek, Tranel & Cohen (2008) stated...
Purpose – I want to bring awareness to the fact that Alzheimer’s disease is an irreversible, progressive brain disorder that slowly destroys memory and thinking skills, and eventually the ability to carry out the simplest tasks.
It is imperative that a sleep disorder is treated because an early treatment can prevent a drastic problem in the future. There are several options or paths to take when dealing with a sleeping disorder. However, options depend on the severity of the sleep disorder. These options include changing sleeping patterns, use of machines, and medication. Initially, home remedy treatments are enough to achieve a better night’s sleep. A simple position change while sleeping can be enough to stop snoring. An addition of a second pillow or changing the room temperature to a suitable level may be the missing piece to stay asleep throughout the night. Withhold eating food two hours before bed helps prevent a digestive system upset that may occur in the middle or beginning of sleep. Individuals do not have to deal with a sleep disorder alone, family members or bed partners identify the signs as well (Living with Sleep Apnea 1). Having the emotional support from loved ones can make the process of dealing with a disorder easier. Treatment for a severe sleep disorder can much more extensive and expensive. For individuals with sleep apnea, a CPAP (continuous positive airway pressure) machine is available with a prescription. This machine is put on the face as a mask and thus raises the pressure of air in the throat, providing an opening for the airway and fortunately a better sleep.
Sleep apnea is a sleep disorder which causes frequent pauses in the breathing process during the sleep.
Sleep disorders are an underestimated public health concern considering that fifty to seventy million Americans are affected. Technological advances in the field of sleep have facilitated various theories to explain the need for and the purpose of sleep. Scientist have uncovered many types of sleep disorders such as insomnia, sleep apnea, and narcolepsy. Sleep disorders affect men ,women, children, the elderly, and the obese in different ways. Factors such as the number of children and the effects of menopause have been studied to determine their effects on sleep. Various treatments have been utilized ranging from non-pharmacologic to pharmacologic methods. Scientist have pinpointed areas of the brain that are involved in sleep deprivation and hormones that ultimately affect sleep.
Sleep Apnea (cessation of air flow at the mouth for greater than 10 seconds) can