RT info:eu-repo/semantics/article
T1 Corollary discharge function in healthy controls: Evidence about self‐speech and external speech processing
A1 Beño‐Ruiz‐de‐la‐Sierra, Rosa M.
A1 Arjona‐Valladares, Antonio
A1 Fondevila Estevez, Sabela
A1 Fernández‐Linsenbarth, Inés
A1 Díez, Álvaro
A1 Molina, Vicente
AB 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 analyse this corollary discharge phenomenon (agency and ownership), we registered the event-related potentials of 42 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 with 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.
PB Wiley
SN 0953-816X
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/66438
UL https://uvadoc.uva.es/handle/10324/66438
LA spa
NO Schizophrenia Bulletin. Nov 10:sbad157 (Online ahead of print); 2023 Aug 27
DS UVaDOC
RD 28-nov-2024