Abstract
This study investigated binaural sensory processing when continuous nonspeech tonal stimuli were dichotically presented. The experimental task consisted of auditory (frequency) pursuit tracking, and consequently there was no influence of selective attention or competition on the listening task. The target sound was externally controlled, whereas the cursor sound was generated and controlled by the transduced movements of either the subject's tongue or hand. A significant laterality effect was found only when the source of motor control over the acoustic signal was the speech-related movements of the tongue. The theoretical implications of these results towards a feedback regulatory theory of speech production are discussed.
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