Influence of the stimulus on verbal and nonverbal responses by individuals with and without aphasia

de Riesthal, Michael Robert (2011) Influence of the stimulus on verbal and nonverbal responses by individuals with and without aphasia. [Clinical Aphasiology Paper]

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Abstract

Aphasia influences performance in multiple response modalities.  Models of lexical access, pantomime, and drawing production suggest that performance may be influenced by the mode of stimulus presentation.  In this study, twelve individuals with aphasia and twelve individuals without aphasia completed a set of experimental conditions in which one of three stimulus modes (pictorial, auditory, printed) were paired with one of four response modalities (speaking, writing, pantomime, drawing).  Significant differences were found between aphasic and nonaphasic performance.  Individuals with aphasia demonstrated superior performance in speaking and pantomime compared to writing and drawing.  In general, performance was superior in the pictorial condition.

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