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Inhibition of return
Eye movements
Input-based IOR
Steady-state visual evoked potentials
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Lim, A., Janssen, S. M. J., & Satel, J. (2020). Exploring the temporal dynamics of inhibition of return using steady-state visual evoked potentials. Cognitive Affective Behavioral Neuroscience, 20, 1349–1364.
Inhibition of return is characterized by delayed responses to previously attended locations when the interval between stimuli is long enough. The present study employed steady-state visual evoked potentials (SSVEPs) as a measure of attentional modulation to explore the nature and time course of input- and output-based inhibitory cueing mechanisms that each slow response times at previously 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 the response modality (saccadic or manual response to targets). Grand averages of SSVEP amplitudes for each condition showed a reduction in amplitude at cued locations in the window of 100-500 ms post-cue, revealing an early, short-term decrease in the responses of neurons that can be attributed to sensory adaptation, regardless of response modality. Because primary visual cortex has been found to be one of the major sources of SSVEP signals, the results suggest that the SSVEP modulations observed were caused by input-based inhibition that occurred in V1, or visual areas earlier than V1, as a consequence of reduced visual input activity at previously cued locations. No SSVEP modulations were observed in either response condition late in the cue-target interval, 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.
This is the final draft, after peer-review, of a manuscript published in Cognitive, Affective, & Behavioral Neuroscience. The published version is available online at
1530-7026 (print)
1531-135X (online)
Appears in Collections:Journal Articles

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