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Corollary discharge function in healthy controls: evidence about self-speech and external speech processing.
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  • Rosa M. Beño-Ruiz-de-la-Sierra,
  • Antonio Arjona,
  • Sabela Fondevila Estevez,
  • Inés Fernández-Linsenbarth,
  • Alvaro Diez,
  • Vicente Molina
Rosa M. Beño-Ruiz-de-la-Sierra
University of Valladolid Faculty of Medicine

Corresponding Author:rosabenoruiz@gmail.com

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Antonio Arjona
University of Valladolid
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Sabela Fondevila Estevez
UCM
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Inés Fernández-Linsenbarth
University of Valladolid Faculty of Medicine
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Alvaro Diez
University of Valladolid Faculty of Medicine
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Vicente Molina
University of Valladolid Faculty of Medicine
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Abstract

As we speak, corollary discharge mechanisms suppress the auditory conscious perception of the self-generated voice in healthy subjects. This suppression has been associated with the attenuation of the auditory N1 component. To analyze this corollary discharge phenomenon (agency and ownership), we registered the Event-Related Potentials of forty-two healthy subjects. The N1 and P2 components were elicited by spoken vowels (talk condition; agency), by played-back vowels recorded with their own voice (listen-self condition; ownership), and by played-back vowels recorded with an external voice (listen-other condition). The N1 amplitude elicited by the talk condition was smaller compared to the listen-self and listen-other conditions. There were no amplitude differences in N1 between listen-self and listen-other conditions. The P2 component did not show differences between conditions. Additionally, a peak latency analysis of N1 and P2 components between the three conditions showed no differences. These findings corroborate previous results showing that the corollary discharge mechanisms dampen sensory responses to self-generated speech (agency experience), and provide new neurophysiological evidence about the similarities in the processing of played-back vowels with our own voice (ownership experience) and with an external voice.
27 Mar 2023Submitted to European Journal of Neuroscience
28 Mar 2023Submission Checks Completed
28 Mar 2023Review(s) Completed, Editorial Evaluation Pending
28 Mar 2023Assigned to Editor
28 Mar 2023Reviewer(s) Assigned
21 May 2023Editorial Decision: Revise Minor
27 Jun 20231st Revision Received
28 Jun 2023Assigned to Editor
28 Jun 2023Submission Checks Completed
28 Jun 2023Review(s) Completed, Editorial Evaluation Pending
28 Jun 2023Reviewer(s) Assigned
01 Aug 2023Editorial Decision: Revise Major
02 Aug 20232nd Revision Received
03 Aug 2023Assigned to Editor
03 Aug 2023Submission Checks Completed
03 Aug 2023Review(s) Completed, Editorial Evaluation Pending
04 Aug 2023Editorial Decision: Accept