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Dyssomnia
Dyssomnia Primary disorders of sleep or wakefulness characterized by insomnia or hypersomnia as the major presenting symptom. Dyssomnias are disorders of the amount, quality, or timing of sleep.
RELATED TERMS--------------------------------------
Insomnia
Disorders characterized by impairment of the ability to initiate or maintain sleep. This may occur as a primary disorder or in association with another medical or psychiatric condition.
Hypersomnia
Excessive difficulty maintaining an alert awake state during the day, or undesired daytime sleep episodes. sleepiness, as evidenced by prolonged nocturnal sleep, ideas of reference The feeling that casual incidents and external events have a particular and unusual meaning that is specific to the person. This is to be distinguished from a delusion of reference, in which there is a belief that is held with delusional conviction
Symptom
A subjective manifestation of a pathological condition. Symptoms are reported by the affected individual rather than observed by the examiner.
SIMILAR TERMS--------------------------------------
PREVIOUS AND NEXT TERMS--------------------------------------
Double bind
Interaction in which one person demands a response to a message containing mutually contradictory signals, while the other person is unable either to comment on the incongruity or to escape from the situation.
Drive
Basic urge, instinct, motivation; a term used to avoid confusion with the more purely biological concept of instinct.
Dyad
A two-person relationship, such as the therapeutic relationship between doctor and patient in individual psychotherapy.
Dysarthria
Imperfect articulation of speech due to disturbances of muscular control or incoordination.
Dysgeusia
Perversion of the sense of taste.
Dyssomnia
Dextrose
See Glucose.
D and C
Dilatation and curettage. A surgical procedure in which the uterine lining is removed by scraping.
Dacryocystitis
Inflammation of the sac that collects tears for drainage from the eye.
Dandruff
Little scales or flakes of dead skin on the scalp. Also called seborrheic dermatitis.
Debridement
Removal of foreign material or dead tissue.
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