labile affect

(redirected from Affective lability)
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affect

 [af´ekt]
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.

la·bile af·fect

rapid shifts in outward emotional expressions; often associated with organic brain syndromes such as intoxication.
References in periodicals archive ?
The researchers administered standardized scales for impulsivity, hostility, anger, anxiety, depression, and affective lability and reported that impulsivity was reduced by 23%, hostility by 24%, lability by 37%, anger by 37%, anxiety by 31%, and depression by 62%.
158 patients with PMDD were treated with either placebo, escitalopram 10mg or escitalopram 20mg on an intermittent basis within three menstrual cycles and efficacy was measured by assessing the change from baseline in the luteal VAS rating, one recognised rating scale for PMDD, which is used to measure the key symptoms of PMDD including irritability, tension, affective lability and depressed mood.
1993); the Center for Neurologic Study-Lability Scale (CNS-LS; Moore, Gresham, Bromberg, Kasarkis, & Smith, 1997); and the Affective Lability Scale (ALS; Harvey, Greenberg, & Serper, 1989).
Premenstrual dysphoric disorder (PMDD) is defined rather strictly in DSMIV: five or more symptoms during the luteal phase (one of which must be depressed mood, anxiety or tension, affective lability, or anger or irritability) severe enough to markedly interfere with work, school, social activities, or personal relationships.
Symptoms of this disorder can include fatigue, disordered sleep, headaches, dizziness, irritability or aggression, anxiety, depression, affective lability and apathy.
The differential diagnosis should also include affective lability, essential crying, and witzelsucht.
Each study had as its primary endpoint a composite of visual analog items that measured emotional symptoms such as irritability, tension, affective lability, and depressed mood.
Hallucinations, delusions, affective lability, and cognitive deficits are not rare in multiple sclerosis.
Premenstrual dysphoric disorder (PMDD) is defined rather strictly in DSMIV: five or more symptoms during the luteal phase (one of which must be depressed mood, anxiety or tension, affective lability or anger or irritability) severe enough to markedly interfere with work, school, social activities, or personal relationships.
A PMDD diagnosis requires at least 5 of the following 11 symptoms, including at least 1 of the first 4, and the symptoms must have an adverse effect on daily life: dysphoria or depressed mood, anxiety or tension, affective lability, irritability, decreased interest in usual activities, concentration difficulties, lack of energy, overeating and food cravings or marked change in appetite, hypersomnia or insomnia, feeling overwhelmed, and physical symptoms such as breast tenderness and bloating.
I had been treating two adult patients with olanzapine when I added gabapentin (Neurontin) for affective lability and impulsiveness, after which they reported relief from increased appetite.