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Long-term chronic exposure to insufficient sleep is associated with a decline in optimism and sociability, and an increase in subjective experiences of sleepiness and fatigue. [16] Furthermore, sleep restricted to five hours a night over the course of a week causes significant increases in self-reports of subjective mood disturbance and sleepiness.
emotions Greek θῡμός (thūmós), spirit, soul; courage; breath, mind, emotions dysthymia-tic: pertaining to Greek -τῐκός (-tikós), adjective-forming suffix denoting: relating to, able to, suited to -tide: bound to, forming a noun from an adjective by dropping -ic and adding -tide.
Hori et al. regard sleep onset hypnagogia as a state distinct from both wakefulness and sleep with unique electrophysiological, behavioral and subjective characteristics, [10] [12] while Germaine et al. have demonstrated a resemblance between the EEG power spectra of spontaneously occurring hypnagogic images, on the one hand, and those of both ...
While sleep differs from wakefulness in terms of the ability to react to stimuli, it still involves active brain patterns, making it more reactive than a coma or disorders of consciousness. [1] Sleep occurs in repeating periods, during which the body alternates between two distinct modes: REM and non-REM sleep.
Anxiety and fatigue are often connected with sleepwalking. For adults, alcohol, sedatives, medications, medical conditions and mental disorders are all associated with sleepwalking. Sleep walking may involve sitting up and looking awake when the individual is actually asleep, and getting up and walking around, moving items or undressing themselves.
This glossary covers terms found in the psychiatric literature; the word origins are primarily Greek, but there are also Latin, French, German, and English terms. Many of these terms refer to expressions dating from the early days of psychiatry in Europe; some are deprecated, and thus are of historic interest.
A sleep disorder, or somnipathy, is a medical disorder affecting an individual's sleep patterns, sometimes impacting physical, mental, social, and emotional functioning. [1] Polysomnography and actigraphy are tests commonly ordered for diagnosing sleep disorders.
Definitions of the terms mood swings, mood instability, affective lability, or emotional lability are commonly similar, which describe fluctuating or oscillating of mood and emotions. But each has unique characteristics that are used to describe specific phenomena or patterns of oscillation.