Treffer: The effect of perceived auditory feedback on speech Brain-Computer Interface decoding performance.

Title:
The effect of perceived auditory feedback on speech Brain-Computer Interface decoding performance.
Authors:
Schippers A; Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht 3584CX, the Netherlands., Berezutskaya J; Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht 3584CX, the Netherlands., Vansteensel MJ; Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht 3584CX, the Netherlands., Freudenburg ZV; Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht 3584CX, the Netherlands., Crone NE; Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA., Ramsey NF; Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht 3584CX, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands. Electronic address: n.f.ramsey@umcutrecht.nl.
Source:
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology [Clin Neurophysiol] 2025 Dec; Vol. 180, pp. 2111403. Date of Electronic Publication: 2025 Oct 26.
Publication Type:
Journal Article
Language:
English
Journal Info:
Publisher: Elsevier Country of Publication: Netherlands NLM ID: 100883319 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1872-8952 (Electronic) Linking ISSN: 13882457 NLM ISO Abbreviation: Clin Neurophysiol Subsets: MEDLINE
Imprint Name(s):
Original Publication: Amsterdam : Elsevier, c1999-
MeSH Terms:
Brain-Computer Interfaces* , Feedback, Sensory*/physiology , Speech*/physiology , Auditory Perception*/physiology , Speech Perception*/physiology, Humans ; Male ; Adult ; Female ; Electroencephalography/methods ; Acoustic Stimulation/methods ; Young Adult
Contributed Indexing:
Keywords: Auditory feedback; Brain-Computer Interfaces; ECoG; Sensorimotor cortex
Entry Date(s):
Date Created: 20251030 Date Completed: 20251121 Latest Revision: 20251121
Update Code:
20251122
DOI:
10.1016/j.clinph.2025.2111403
PMID:
41167038
Database:
MEDLINE

Weitere Informationen

Objective: Brain-Computer Interfaces (BCI) provide alternative means of communication for individuals with severe motor impairment. Implantable speech BCIs have shown great potential, particularly in individuals who could still produce some speech-related movements and/or sounds. As perception of auditory feedback is important for correct speech sound production in able-bodied people, it is conceivable that a complete absence of such feedback in individuals who lost all ability to produce audible speech affects BCI performance. The current study therefore set out to investigate to what extent perception of auditory feedback of self-produced speech contributes to speech decoding performance.
Methods: In three able-bodied participants, patterns of 65-95 Hz power over sensorimotor cortex were compared between normal speech and speech in which auditory feedback was masked by noise. In addition, decoding accuracy was compared between feedback situations.
Results & Conclusions: We found subtle differences in brain activity patterns associated with speech production between situations in which participants could versus could not perceive their produced speech. Importantly, absence of such auditory feedback led to lower speech decoding performance in all participants.
Significance: These results underline the need to validate speech BCI efficacy with fully paralyzed individuals, as perceived feedback can influence the attainable speech decoding accuracy.
(Copyright © 2025 The Authors. Published by Elsevier B.V. All rights reserved.)

Conflicts of interest statement MJ Vansteensel is a consultant for GA Capital. The other authors have no potential conflicts of interests to disclose.