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Lookup NU author(s): Dr Sophie Meekings
This is the authors' accepted manuscript of an article that has been published in its final definitive form by Cognitive Neuroscience Institute , 2021.
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Evidence for perceptual processing in models of speech production is often drawn from investigations in which the sound of a talker’s voice is altered in real time to induce ‘errors’. Methods of acoustic manipulation vary, but are assumed to engage the same neural network and psychological processes. This article aims to review fMRI and PET studies of altered auditory feedback, and assess the strength of the evidence these studies provide for a speech error correction mechanism. Studies included were functional neuroimaging studies of speech production in neurotypical adult humans, using natural speech errors or one of three predefined speech manipulation techniques (frequency altered feedback, delayed auditory feedback and masked auditory feedback). 17 studies met the criteria. Eight of 17 studies did not include an appropriate listening control condition and nine did not collect data showing behavioural compensation. 16 studies reported co-ordinates of brain areas that responded preferentially to manipulated over unmanipulated speech production; these were analysed using the GingerALE toolbox. These foci clustered in bilateral superior temporal gyri (STG), but did not overlap with the cortical fields typically linked to error correction, which lie posterior to these foci. We conclude that neuroimaging evidence is insufficient to confirm accounts of error monitoring.
Author(s): Meekings S, Scott SK
Publication type: Article
Publication status: Published
Journal: Journal of Cognitive Neuroscience
Year: 2021
Volume: 33
Issue: 3
Pages: 422-444
Print publication date: 01/03/2021
Online publication date: 16/12/2020
Acceptance date: 24/08/2020
Date deposited: 18/11/2020
ISSN (print): 0898-929X
ISSN (electronic): 1530-8898
Publisher: Cognitive Neuroscience Institute
URL: https://doi.org/10.1162/jocn_a_01661
DOI: 10.1162/jocn_a_01661
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