Ear by visual-field interaction on a cross-modal syllable-matching task.
Twenty-eight subjects (15 male, 13 female) performed a visual/auditory cross-modal matching task involving same/different judgements of CVC nonsense syllables. In the visual modality stimuli were presented either unilaterally or at the midline, and in the auditory modality, binaurally or monaurally--giving nine combinations of simultaneous input. Predictions for RT under each condition were derived by aggregating the assumed effects of single modality lateralized presentation on the basis of a simplistic anatomical model. An unpredicted ear X visual-field interaction emerged which, it is speculated, may in part reflect the operation of transcallosal inhibitory effects. Cross-modal matching is proposed as a paradigm for future investigations of interhemispheric integration.
D000293:Adolescent; D000328:Adult; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D008959:Models, Neurological; D011930:Reaction Time / Q000502:physiology; D011932:Reading; D013067:Speech Perception / Q000502:physiology*; D014794:Visual Fields; D014796:Visual Perception / Q000502:physiology*