In:
PLOS Biology, Public Library of Science (PLoS), Vol. 21, No. 3 ( 2023-3-8), p. e3002014-
Abstract:
A growing body of research demonstrates that distracting inputs can be proactively suppressed via spatial cues, nonspatial cues, or experience, which are governed by more than one top-down mechanism of attention. However, how the neural mechanisms underlying spatial distractor cues guide proactive suppression of distracting inputs remains unresolved. Here, we recorded electroencephalography signals from 110 participants in 3 experiments to identify the role of alpha activity in proactive distractor suppression induced by spatial cues and its influence on subsequent distractor inhibition. Behaviorally, we found novel changes in the spatial proximity of the distractor: Cueing distractors far away from the target improves search performance for the target, while cueing distractors close to the target hampers performance. Crucially, we found dynamic characteristics of spatial representation for distractor suppression during anticipation. This result was further verified by alpha power increased relatively contralateral to the cued distractor. At both the between- and within-subjects levels, we found that these activities further predicted the decrement of the subsequent P D component, which was indicative of reduced distractor interference. Moreover, anticipatory alpha activity and its link with the subsequent P D component were specific to the high predictive validity of distractor cue. Together, our results reveal the underlying neural mechanisms by which cueing the spatial distractor may contribute to reduced distractor interference. These results also provide evidence supporting the role of alpha activity as gating by proactive suppression.
Type of Medium:
Online Resource
ISSN:
1545-7885
DOI:
10.1371/journal.pbio.3002014
DOI:
10.1371/journal.pbio.3002014.g001
DOI:
10.1371/journal.pbio.3002014.g002
DOI:
10.1371/journal.pbio.3002014.g003
DOI:
10.1371/journal.pbio.3002014.g004
DOI:
10.1371/journal.pbio.3002014.g005
DOI:
10.1371/journal.pbio.3002014.g006
DOI:
10.1371/journal.pbio.3002014.s001
DOI:
10.1371/journal.pbio.3002014.s002
DOI:
10.1371/journal.pbio.3002014.s003
DOI:
10.1371/journal.pbio.3002014.s004
DOI:
10.1371/journal.pbio.3002014.s005
DOI:
10.1371/journal.pbio.3002014.s006
DOI:
10.1371/journal.pbio.3002014.s007
DOI:
10.1371/journal.pbio.3002014.s008
DOI:
10.1371/journal.pbio.3002014.s009
DOI:
10.1371/journal.pbio.3002014.s010
DOI:
10.1371/journal.pbio.3002014.s011
DOI:
10.1371/journal.pbio.3002014.s012
DOI:
10.1371/journal.pbio.3002014.s013
DOI:
10.1371/journal.pbio.3002014.s014
DOI:
10.1371/journal.pbio.3002014.r001
DOI:
10.1371/journal.pbio.3002014.r002
DOI:
10.1371/journal.pbio.3002014.r003
DOI:
10.1371/journal.pbio.3002014.r004
DOI:
10.1371/journal.pbio.3002014.r005
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2023
detail.hit.zdb_id:
2126773-X
Permalink