Affective communication in normal and brain-damaged adults: an overview.

In the past few decades an increasing number of investigators have examined how emotions are communicated through facial expression, speech prosody, and language in nonclinical and brain-damaged populations. Disorders of emotional communication (often referred to as affective processing disorders) are commonly associated with brain damage. These disorders include difficulty with expressing and perceiving emotional information, regulating emotions in communicative interactions, and demonstrating sensitivity to the emotional expressions of communicative partners. The purposes of this article are to: (1) describe "normal" affective communication; (2) review disorders in affective expression, perception, and regulation; (3) discuss the modality of facial expression and disorders of affective facial expression; and (4) present some informal tools for assessing affective processing.