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Experimental investigation of the state of depression is at present hindered by the lack of simple, objective, repeatable measures of components of the state. Covariation between self-report measures of affect and simple measure of speech rate was investigated in a series of studies of both clinical and normal subjects, using single-case and group designs. Slowing of speech was significantly and substantially correlated with self-reports of increased unpleasant affect in certain situations. This suggests that the speech measure may usefully reflect a behavioural component of a state of retarded-type depression.


Journal article


Br J Soc Clin Psychol

Publication Date





271 - 278


Adult, Aged, Anxiety, Bipolar Disorder, Depressive Disorder, Female, Humans, Male, Middle Aged, Verbal Behavior