Event-related alpha desynchronization in touch - comparing attention and perception

Silas, Jonathan, Tipple, Anthony and Jones, Alexander ORCID: https://orcid.org/0000-0002-9118-0339 (2019) Event-related alpha desynchronization in touch - comparing attention and perception. Neuroscience Letters, 705 . pp. 131-137. ISSN 0304-3940 (doi:10.1016/j.neulet.2019.04.058)

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Abstract

An event-related decrease in alpha power contralateral to the presentation of a stimulus is now a well-established phenomenon. Two distinct accounts of the functional role of alpha changes are present in the literature that either focus on alpha changes observed during attentional or simple perceptual tasks. This study directly compares tasks that invoke alpha decreases during exogenous, endogenous and perceptual processing. Using a data driven approach to compare alpha changes we show that alpha decreases differ only between exogenous and endogenous attention tasks for only a short time window, 500–600 ms after cue onset. We suggest this indicates a role for alpha in voluntary orientating and stimulus predictability.

Item Type: Article
Research Areas: A. > School of Science and Technology > Psychology
Item ID: 26532
Notes on copyright: Copyright: © 2019 Elsevier B.V. This author's accepted manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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Depositing User: Jon Silas
Date Deposited: 02 May 2019 10:00
Last Modified: 11 Oct 2019 16:40
URI: https://eprints.mdx.ac.uk/id/eprint/26532

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