Heinks-Maldonado, Theda H; Mathalon, Daniel H; Gray, Max; Ford, Judith M
Fine-tuning of auditory cortex during speech production
Teil von
  • Psychophysiology, 2005-03, Vol.42 (2), p.180-190
Received August 18, 2004; Accepted November 29, 2004
Ort / Verlag
Oxford, UK: Blackwell Publishing
Links zum Volltext
Web of Science
The cortex suppresses sensory information when it is the result of a self‐produced motor act, including the motor act of speaking. The specificity of the auditory cortical suppression to self‐produced speech, a prediction derived from the posited operation of a precise forward model system, has not been established. We examined the auditory N100 component of the event‐related brain potential elicited during speech production. While subjects uttered a vowel, they heard real‐time feedback of their unaltered voice, their pitch‐shifted voice, or an alien voice substituted for their own. The subjects' own unaltered voice feedback elicited a dampened auditory N100 response relative to the N100 elicited by altered or alien auditory feedback. This is consistent with the operation of a precise forward model modulating the auditory cortical response to self‐generated speech and allowing immediate distinction of self and externally generated auditory stimuli.

Weiterführende Literatur

Empfehlungen zum selben Thema automatisch vorgeschlagen von bX
Die Universität der Informationsgesellschaft