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Brain Lang. 2018 Dec;187:92-103. doi: 10.1016/j.bandl.2018.01.008. Epub 2018 May 7.

Auditory prediction during speaking and listening.

Author information

1
Laboratoire Parole et Langage, Aix-Marseille Université & CNRS, Aix-en-Provence, France; Brain and Language Research Institute, Aix-en-Provence, France.
2
School of Speech-Language Pathology and Audiology, Université de Montréal, Canada; Sainte-Justine Hospital Research Centre, Montreal, Canada; Centre for Research on Brain, Language and Music, Montreal, Canada. Electronic address: douglas.shiller@umontreal.ca.

Abstract

In the present EEG study, the role of auditory prediction in speech was explored through the comparison of auditory cortical responses during active speaking and passive listening to the same acoustic speech signals. Two manipulations of sensory prediction accuracy were used during the speaking task: (1) a real-time change in vowel F1 feedback (reducing prediction accuracy relative to unaltered feedback) and (2) presenting a stable auditory target rather than a visual cue to speak (enhancing auditory prediction accuracy during baseline productions, and potentially enhancing the perturbing effect of altered feedback). While subjects compensated for the F1 manipulation, no difference between the auditory-cue and visual-cue conditions were found. Under visually-cued conditions, reduced N1/P2 amplitude was observed during speaking vs. listening, reflecting a motor-to-sensory prediction. In addition, a significant correlation was observed between the magnitude of behavioral compensatory F1 response and the magnitude of this speaking induced suppression (SIS) for P2 during the altered auditory feedback phase, where a stronger compensatory decrease in F1 was associated with a stronger the SIS effect. Finally, under the auditory-cued condition, an auditory repetition-suppression effect was observed in N1/P2 amplitude during the listening task but not active speaking, suggesting that auditory predictive processes during speaking and passive listening are functionally distinct.

KEYWORDS:

Auditory feedback; Auditory speech perception; EEG; Sensorimotor adaptation; Speech motor control; Speech-induced suppression

PMID:
29402437
PMCID:
PMC6072625
[Available on 2019-12-01]
DOI:
10.1016/j.bandl.2018.01.008
[Indexed for MEDLINE]

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