Biology and Marine Biology

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The effect of gender on the N1-P2 auditory complex while listening and speaking with altered auditory feedback

Shannon Swink; Andrew Stuart (Profiled Author: Andrew Stuart)

Brain and Language. 2012;122(1):25-33.

The effect of gender on the N1-P2 auditory complex was examined while listening and speaking with altered auditory feedback. Fifteen normal hearing adult males and 15 females participated. N1-P2 components were evoked while listening to self-produced nonaltered and frequency shifted /a/ tokens and during production of /a/ tokens during nonaltered auditory feedback (NAF), frequency altered feedback (FAF), and delayed auditory feedback (DAF; 50 and 200. ms). During speech production, females exhibited earlier N1 latencies during 50. ms DAF and earlier P2 latencies during 50. ms DAF and FAF. There were no significant differences in N1-P2 amplitudes across all conditions. Comparing listening to active speaking, N1 and P2 latencies were earlier among females, with speaking, and under NAF. N1-P2 amplitudes were significantly reduced during speech production. These findings are consistent with the notions that speech production suppresses auditory cortex responsiveness and males and females process altered auditory feedback differently while speaking. © 2012 Elsevier Inc.

PMID: 22564750    

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