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Rhythmic fluctuations of saccadic reaction time arising from visual competition

Lookup NU author(s): Dr Ricardo Kienitz, Professor Michael SchmidORCiD

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Abstract

© 2018, The Author(s). Recent research indicates that attentional stimulus selection could be a rhythmic process. In monkey, neurons in V4 and IT exhibit rhythmic spiking activity in the theta range in response to a stimulus. When two stimuli are presented together, the rhythmic neuronal responses to each occur in anti-phase, a result indicative of competitive interactions. In addition, it was recently demonstrated that these alternating oscillations in monkey V4 modulate the speed of saccadic responses to a target flashed on one of the two competing stimuli. Here, we replicate a similar behavioral task in humans (7 participants, each performed 4000 trials) and report a pattern of results consistent with the monkey findings: saccadic response times fluctuate in the theta range (6 Hz), with opposite phase for targets flashed on distinct competing stimuli.

Publication metadata

Author(s): Chota S, Luo C, Crouzet SM, Boyer L, Kienitz R, Schmid MC, Van Rullen R

Publication type: Article

Publication status: Published

Journal: Scientific Reports

Year: 2018

Volume: 8

Issue: 1

Online publication date: 26/10/2018

Acceptance date: 09/10/2018

Date deposited: 13/11/2018

ISSN (electronic): 2045-2322

Publisher: Nature Publishing Group

URL: https://doi.org/10.1038/s41598-018-34252-7

DOI: 10.1038/s41598-018-34252-7

PubMed id: 30367113

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