Da. Trauner et al., COMPREHENSION AND EXPRESSION OF AFFECT IN LANGUAGE-IMPAIRED CHILDREN, Journal of psycholinguistic research, 22(4), 1993, pp. 445-452
Eight children with developmental language impairment (LI) and eight a
ge-, sex-, socioeconomic-status-, and I.Q.-matched controls were given
tests of comprehension and expression of affective intent in spoken l
anguage and through facial expression. The LI children performed signi
ficantly more poorly than did controls in both comprehension and spont
aneous expression of vocal affect. On tasks involving emotional facial
expression, the opposite results were observed. The LI children were
more dramatic in their expression of facial affect than were the contr
ols. Children with language impairment appear to have a deficit in aff
ective comprehension and expression that is modality-specific, i.e., l
imited to vocal affect. The heightened range of affective facial expre
ssion that they demonstrate may be a compensatory mechanism to offset
their difficulties with vocal affect.