Sleep disorder

Sleep disorder

The disturbance of normal sleep patterns caused by a broad range of illnesses, including dysfunctional sleep mechanisms, abnormalities in physiological functions during sleep, abnormalities of the biological clock, and sleep disturbances that are induced by factors extrinsic to the sleep process.

Industry: Health care

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Sleep disorder

polysomnogram (PSG)

Health care; Sleep disorder

Continuous and simultaneous recording of physiological variables during sleep, i.e., EEG (brain waves) electromyography (major muscle activity), electrooculography (eye movement), EKG (heart ...

rapid eye movement (REM) sleep

Health care; Sleep disorder

Deep sleep period with rapid eye movements. Normal part of sleep cycle. Recurs cyclically several times during a normal period of sleep. Characterized by increased neuronal activity of the forebrain ...

jet lag

Health care; Sleep disorder

Describes a combination of symptoms induced by a major rapid shift in environmental time during travel to a new time zone. Called "jet" lag because of the often noticed after airplane flights. ...

Oxford sleep resistance test (OSLER)

Health care; Sleep disorder

Designed as an objective vigilance test. Similar to the MSLT but without EEG monitoring in the sleep cycle and in appetite

ford insomnia response to stress test (FIRST)

Health care; Sleep disorder

Developed at the Henry Ford Hospital, this is a quick test that is used to identify people at risk for insomnia.

delayed sleep phase disorder

Health care; Sleep disorder

Disorder in which the major sleep episode is delayed by two or more hours of the desired bedtime. This causes difficulty awakening at the desired time.

circadian rhythm sleep disorders

Health care; Sleep disorder

Disorders that are related to the timing of sleep within the 24-hour day. Some of these disorders are influenced by the timing of the sleep period that is under the individual's control (e.g., shift ...