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Activities and Seminars

Caroline Niziolek. Neural mechanisms of auditory feedback control in normal and perturbed speech
 
Date: Oct 30, 2012

What: Neural mechanisms of auditory feedback control in normal and perturbed speech

Where: BCBL auditorium

Who: Caroline Niziolek, University of California, San Francisco

When: 12 noon


Speech is critically dependent on auditory feedback, involving a peri-Sylvian network that mediates vocal control through both sensory and motor cortices. Our lab investigates this network using magnetoencephalography as well as direct cortical recordings to measure the neural activity of speakers as they hear themselves speaking. In this talk, I’ll discuss some of the more recent empirical work our lab has done to investigate the neural substrate of auditory feedback processing. In one experiment, we investigate the nature of the prediction (“efference copy”) sent from premotor to auditory cortex during normal speech. Another study looks at the speech network during pitch perturbation, in which auditory feedback is unexpectedly altered, causing an mismatch with the auditory prediction.