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Essay / Research Paper Abstract
9 pages in length. Normal sleep patterns run in a four-step cycle, with Stage I being that of the hazy transitional period between consciousness and sleep, also known as drowsiness or presleep. This period lasts approximately ten minutes until Stage II commences, lasting another fifteen minutes or so. Stage III is recognizable by high-amplitude delta activity that ultimately turns into Stage IV. Stage IV, which typically begins an hour and a half after the initial sleep pattern has begun, is the stage in which many people have difficulty reaching. Existing experiments have determined that physiological standards within the sleeping subject have changed abruptly in the forty-five minutes that follow the onset of Stage IV. Indications of reaching this stage show how the EEG reading is maladjusted and the eyes flit from one side to the other in a rapid fashion, which is indicative of REM sleep. Bibliography lists 11 sources.
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9 pages (~225 words per page)
File: LM1_TLCSleepP.rtf
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Unformatted sample text from the term paper:
or presleep (Benbadis et al, 2002). This period lasts approximately ten minutes until Stage II commences, lasting another fifteen minutes or so. Stage III is recognizable by "high-amplitude
delta activity" (Murray, 1995, p. 303) that ultimately turns into Stage IV. Stage IV, which typically begins an hour and a half after the initial sleep pattern has begun,
is the stage in which many people have difficulty reaching. Existing experiments have determined that physiological standards within the sleeping subject have "changed abruptly" (Murray, 1995, p. 303) in
the forty-five minutes that follow the onset of Stage IV. Indications of reaching this stage show how the EEG reading is maladjusted and the eyes flit from one side
to the other in a rapid fashion, which is indicative of REM sleep. Age, weight (body mass index) and activity levels have important
individual and collective impacts upon ones sleep patterns. An individual with normal weight and moderate activity levels appropriate to his or her age will achieve normal sleep patterns by
virtue of this normality; however, that does not necessarily preclude incidence of abnormal sleep patterns if other variables - stress, personal problems, etc. - also exist simultaneously. Of the
three components, age is said to be "probably the single most crucial factor (apart from the time since the last episode of sleep) that determines how humans characteristically sleep.
More so than gender, psychiatric illness and even, to a large extent, most physical illnesses, age is a major determinant of human sleep" (Anonymous, 1997, p. PG). From birth
to old age, one can readily chart the physiological aspects of normal sleep patterns as divided along the timeline of life. Under normal circumstances, newborns spend the vast majority of
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