labile affect

Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to labile affect: restricted affect


the external expression of emotion attached to ideas or mental representations of objects. see also mood.
blunted affect severe reduction in the intensity of affect; a common symptom of schizophrenic disorders.
constricted affect restricted affect.
flat affect lack of emotional expression.
inappropriate affect affect that is incongruent with the situation or with the content of a patient's ideas or speech.
labile affect that characterized by rapid changes in emotion unrelated to external events or stimuli.
restricted affect reduction in the intensity of affect, to a somewhat lesser degree than is characteristic of blunted affect.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

la·bile af·fect

rapid shifts in outward emotional expressions; often associated with organic brain syndromes such as intoxication.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
On day 3, the primary team assumes care and observes fluctuations in level of arousal with disorientation, inattention, labile affect, disorganized speech and behavior, and responsiveness to internal (visual) stimuli.
Such changes in mood are referred to as a labile affect. The terms constricted or blunted are often used to describe individuals who do not express any mood or who remain "poker faced." More important than using the appropriate terms, though, investigators should include clear and specific examples--such as inappropriate laughter--that document a subject's mood and affect.
Affective symptoms of PTSD include labile affects; anxiety, panic, and irritability; fears, including excessive worry, generalized phobias, and fear of retraumatization; tension; constricted emotions; inability to express feelings; distress at reminders of objects, situations, or people; traumatic dreams; and avoidance of pleasurable activities.