Ear Preference for Dichotically Presented Verbal Stimuli as a Function of Report Strategies

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Abstract
A study was done to investigate lateral asymmetries in the perception of dichotic synthetic verbal stimuli in a group of 24 normal-hearing right-handed subjects. The subjects were tested under the following reporting conditions: (1) free recall, in which the subject reported the stimuli in any order; (2) ordered before, in which the subject was instructed which ear to report first before the presentation of stimuli; and (3) ordered after, in which the subject was instructed which ear to report first after the presentation of the stimuli. It was found that a significant right-ear preference for dichotically presented verbal stimuli existed regardless of the report strategy employed. In all three reporting conditions, the right ear showed a significant superiority of accuracy of response.

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