Two experiments using nonpsychiatric samples employed the auditory dichotic shadowing procedure to examine the relationship between psychotic predisposition or symptomatology and differential hemisphere performance. In experiment 1, right-handed Ss with high scores on the EPQ P-scale failed to show the normal right-ear preference for verbal material. This findings was not replicated in experiment 2, where there was a marginally significant tendency for right-handed Ss with high scores on the Schizotypy Scale (STA) to fail to show the normal right-ear preference. Different patterns of results were obtained for males and females in experiment 2. The results provide partial support for earlier studies on the relationship between schizotypy and differential hemisphere function. It is argued that the different patterns of means obtained in these and other studies in this area are best explained by a structural-dynamic model of hemisphere functioning.