COGNITIVE NEUROSCIENCE AND NEUROPSYCHOLOGYEnhanced neural responses to self-triggered voice pitch feedback perturbationsLiu, Hanjuna; Behroozmand, Roozbehb; Larson, Charles R.bAuthor Information aDepartment of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China bDepartment of Communication Science and Disorders, Northwestern University, Evanston, Illinois, USA Correspondence to Dr Charles R. Larson, PhD, Department of Communication Sciences and Disorders, Northwestern University, 2240 Campus Drive, Evanston, IL 60208, USA Tel: +1 847 491 2424; fax: +1 847 491 4975; e-mail: [email protected] Received 19 January 2010 accepted 28 February 2010 NeuroReport: May 12, 2010 - Volume 21 - Issue 7 - p 527-531 doi: 10.1097/WNR.0b013e3283393a44 Buy Metrics Abstract This study investigated the effect of self-triggered voice fundamental frequency (F0) feedback perturbation on auditory event-related potentials (ERPs) during vocalization and listening. Auditory ERPs were examined in response to self-triggered and computer-triggered −200 cents pitch-shift stimuli while participants vocalized or listened to the playback of their self-vocalizations. The stimuli were either presented with a delay of 500–1000 ms after the participants pressed a button or delivered by a computer with an interstimulus interval of 500–1000 ms. Results showed that self-triggered stimuli elicited larger ERPs compared with computer-triggered stimuli during both vocalization and listening conditions. These findings suggest that self-triggered perturbation of self-vocalization auditory feedback may enhance auditory responses to voice feedback pitch perturbation during vocalization and listening. © 2010 Lippincott Williams & Wilkins, Inc.