Repetition of affective prosody in mixed transcortical aphasia
L. J. Speedie, H. B. Coslett and K. M. Heilman
Two patients with mixed transcortical aphasia could repeat propositional
speech but not affective prosody. These findings suggest that the intact
perisylvian region responsible for propositional speech does not mediate
effective prosody. We propose that affective prosody is incorporated into
propositional speech by means of an interhemispheric mechanism and that the
failure of these patients to repeat affective prosody was caused by a
disconnection of the left perisylvian structures from the right hemisphere
structures thought to mediate affective prosody.
