No evidence for peripheral mechanism attenuating auditory ERPs to self-induced tones

Horváth, János György and Burgyán, Annamária (2013) No evidence for peripheral mechanism attenuating auditory ERPs to self-induced tones. Psychophysiology, 50 (6). pp. 563-569. ISSN 00485772

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Abstract

The N1 and P2 event-related potentials (ERPs) are attenuated when the eliciting sounds coincide with our own actions. Although this ERP attenuation could be caused by central processes, it may also reflect a peripheral mechanism: the co-activation of the stapedius muscle with the task-relevant effector, which reduces signal transmission efficiency in the middle ear, reducing the effective intensity of concurrently presented tones, which, in turn, elicit lower-amplitude auditory ERPs. Because stapedius muscle contraction attenuates frequencies below 2 kHz, no attenuation should occur at frequencies above 2 kHz. A self-induced tone paradigm was administered with 0.5, 2.0, and 8.0 kHz pure tones. Self-induced tones elicited attenuated N1 and P2 ERPs, but the magnitude of attenuation was not affected by tone-frequency. This result does not support the hypothesis that ERP attenuation to self-induced tones are caused by stapedius muscle contractions.

Item Type:	Article
Subjects:	B Philosophy. Psychology. Religion / filozófia, pszichológia, vallás > BF Psychology / lélektan > BF01 Psychophysiology / pszichofiziológia B Philosophy. Psychology. Religion / filozófia, pszichológia, vallás > BF Psychology / lélektan > BF09 Sensation / észlelés, érzékelés B Philosophy. Psychology. Religion / filozófia, pszichológia, vallás > BF Psychology / lélektan > BF11 Volition. Will / akarat B Philosophy. Psychology. Religion / filozófia, pszichológia, vallás > BF Psychology / lélektan > BF12 Attention / figyelem
Depositing User:	Dr. János Horváth
Date Deposited:	12 May 2013 05:28
Last Modified:	01 Jun 2014 23:15
URI:	http://real.mtak.hu/id/eprint/5093

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• No evidence for peripheral mechanism attenuating auditory ERPs to self-induced tones. (deposited 12 May 2013 05:27)
  • No evidence for peripheral mechanism attenuating auditory ERPs to self-induced tones. (deposited 12 May 2013 05:28) [Currently Displayed]

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