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Exploring the temporal dynamics of inhibition of return using steady-state visual evoked potentials

Lim, A, Janssen, SMJ and Satel, J ORCID: 0000-0002-5903-4104 2020 , 'Exploring the temporal dynamics of inhibition of return using steady-state visual evoked potentials' , Cognitive, Affective, and Behavioral Neuroscience, vol. 20, no. 6 , 1349–1364 , doi: 10.3758/s13415-020-00846-w.

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Inhibition of return is characterized by delayed responses to previously attended locations when the interval between stimuli islong enough. The present study employed steady-state visual evoked potentials (SSVEPs) as a measure of attentional modulationto explore the nature and time course of input- and output-based inhibitory cueing mechanisms that each slow response times atpreviously stimulated locations under different experimental conditions. The neural effects of behavioral inhibition were examined by comparing post-cue SSVEPs between cued and uncued locations measured across two tasks that differed only in theresponse modality (saccadic or manual response to targets). Grand averages of SSVEP amplitudes for each condition showed areduction in amplitude at cued locations in the window of 100-500 ms post-cue, revealing an early, short-term decrease in theresponses of neurons that can be attributed to sensory adaptation, regardless of response modality. Because primary visual cortexhas been found to be one of the major sources of SSVEP signals, the results suggest that the SSVEP modulations observed werecaused by input-based inhibition that occurred in V1, or visual areas earlier than V1, as a consequence of reduced visual inputactivity at previously cued locations. No SSVEP modulations were observed in either response condition late in the cue-targetinterval, suggesting that neither late input- nor output-based IOR modulates SSVEPs. These findings provide further electrophysiological support for the theory of multiple mechanisms contributing to behavioral cueing effects.

Item Type: Article
Authors/Creators:Lim, A and Janssen, SMJ and Satel, J
Keywords: attention, inhibition of return, eye movements, input-based IOR, steady-state visual evoked potentials, EEG
Journal or Publication Title: Cognitive, Affective, and Behavioral Neuroscience
Publisher: Springer New York LLC
ISSN: 1530-7026
DOI / ID Number: 10.3758/s13415-020-00846-w
Copyright Information:

Copyright 2020 The Psychonomic Society, Inc.

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