No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual Search

“Subsequent search misses” represent a decrease in accuracy at detecting a second target in a visual search task. In this study, we tested the possibility to modulate this effect via inhibition of the right posterior parietal cortex trough transcranial direct current stimulation (tDCS). The target s...

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Main Authors: Alyona A. Lanina, Matteo Feurra, Elena S. Gorbunova
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-11-01
Series:Frontiers in Psychology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpsyg.2018.02112/full
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author Alyona A. Lanina
Matteo Feurra
Elena S. Gorbunova
author_facet Alyona A. Lanina
Matteo Feurra
Elena S. Gorbunova
author_sort Alyona A. Lanina
collection DOAJ
description “Subsequent search misses” represent a decrease in accuracy at detecting a second target in a visual search task. In this study, we tested the possibility to modulate this effect via inhibition of the right posterior parietal cortex trough transcranial direct current stimulation (tDCS). The target stimuli were T-shapes presented among L-shaped distractors. The participant’s task was to detect targets or to report their absence. For each trial, targets could be represented by one high-salient target, one low-salient target, two different targets (one high salient and one low salient), two high salient targets, two low salient targets, or no targets at all (catch-trials). Offline tDCS was applied over the right (target site) or left (control site) posterior parietal cortex. Sham stimulation over the right posterior parietal cortex was included as a control (placebo). Stimulation lasted for 10 min. Afterward, participants were asked to perform the experiment. Our findings suggest that stimulation did not modulate any of the task conditions, suggesting potential limitation of the study: either tDCS was not enough powerful to modulate the task performance or the task was too easy to be modulated by stimulation.
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spelling doaj.art-774bd7fa681f4350ac3cd2c5eea97b3a2022-12-22T01:55:17ZengFrontiers Media S.A.Frontiers in Psychology1664-10782018-11-01910.3389/fpsyg.2018.02112414506No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual SearchAlyona A. Lanina0Matteo Feurra1Elena S. Gorbunova2Laboratory of Digital Interface User’s Cognitive Psychology, National Research University Higher School of Economics, Moscow, RussiaCentre for Cognition & Decision Making, Institute of Cognitive Neuroscience, National Research University Higher School of Economics, Moscow, RussiaLaboratory of Digital Interface User’s Cognitive Psychology, School of Psychology, National Research University Higher School of Economics, Moscow, Russia“Subsequent search misses” represent a decrease in accuracy at detecting a second target in a visual search task. In this study, we tested the possibility to modulate this effect via inhibition of the right posterior parietal cortex trough transcranial direct current stimulation (tDCS). The target stimuli were T-shapes presented among L-shaped distractors. The participant’s task was to detect targets or to report their absence. For each trial, targets could be represented by one high-salient target, one low-salient target, two different targets (one high salient and one low salient), two high salient targets, two low salient targets, or no targets at all (catch-trials). Offline tDCS was applied over the right (target site) or left (control site) posterior parietal cortex. Sham stimulation over the right posterior parietal cortex was included as a control (placebo). Stimulation lasted for 10 min. Afterward, participants were asked to perform the experiment. Our findings suggest that stimulation did not modulate any of the task conditions, suggesting potential limitation of the study: either tDCS was not enough powerful to modulate the task performance or the task was too easy to be modulated by stimulation.https://www.frontiersin.org/article/10.3389/fpsyg.2018.02112/fullvisual searchsubsequent search missestDCSposterior parietal cortexvisual attention
spellingShingle Alyona A. Lanina
Matteo Feurra
Elena S. Gorbunova
No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual Search
Frontiers in Psychology
visual search
subsequent search misses
tDCS
posterior parietal cortex
visual attention
title No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual Search
title_full No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual Search
title_fullStr No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual Search
title_full_unstemmed No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual Search
title_short No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual Search
title_sort no effect of the right posterior parietal cortex tdcs in dual target visual search
topic visual search
subsequent search misses
tDCS
posterior parietal cortex
visual attention
url https://www.frontiersin.org/article/10.3389/fpsyg.2018.02112/full
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AT elenasgorbunova noeffectoftherightposteriorparietalcortextdcsindualtargetvisualsearch