Interference of Illusory Contour Perception by a Distractor

The visual system is capable of recognizing objects when object information is widely separated in space, as revealed by the Kanizsa-type illusory contours (ICs). Attentional involvement in perception of ICs is an important topic, and the present study examined whether and how the processing of ICs...

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Main Authors: Junkai Yang, Lisen Sui, Hongyuan Wu, Qian Wu, Xiaolin Mei, Xiang Wu
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-06-01
Series:Frontiers in Psychology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpsyg.2021.526972/full
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author Junkai Yang
Junkai Yang
Lisen Sui
Hongyuan Wu
Qian Wu
Xiaolin Mei
Xiang Wu
author_facet Junkai Yang
Junkai Yang
Lisen Sui
Hongyuan Wu
Qian Wu
Xiaolin Mei
Xiang Wu
author_sort Junkai Yang
collection DOAJ
description The visual system is capable of recognizing objects when object information is widely separated in space, as revealed by the Kanizsa-type illusory contours (ICs). Attentional involvement in perception of ICs is an important topic, and the present study examined whether and how the processing of ICs is interfered with by a distractor. Discrimination between thin and short deformations of an illusory circle was investigated in the absence or presence of a central dynamic patch, with difficulty of discrimination varied in three levels (easy, medium, and hard). Reaction time (RT) was significantly shorter in the absence compared to the presence of the distractor in the easy and medium conditions. Correct rate (CR) was significantly higher in the absence compared to the presence of the distractor in the easy condition, and the magnitude of the difference between CRs of distracted and non-distracted responses significantly reduced as task difficulty increased. These results suggested that perception of ICs is more likely to be vulnerable to distraction when more attentional resources remain available. The present finding supports that attention is engaged in perception of ICs and that distraction of IC processing is associated with perceptual load.
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spelling doaj.art-df86913dd18649ad9d8289e6420455c32022-12-21T22:53:22ZengFrontiers Media S.A.Frontiers in Psychology1664-10782021-06-011210.3389/fpsyg.2021.526972526972Interference of Illusory Contour Perception by a DistractorJunkai Yang0Junkai Yang1Lisen Sui2Hongyuan Wu3Qian Wu4Xiaolin Mei5Xiang Wu6Laboratory for Behavioral and Regional Finance, Guangdong University of Finance, Guangzhou, ChinaDepartment of Psychology, Sun Yat-sen University, Guangzhou, ChinaDepartment of Neurosurgery, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, ChinaDepartment of Psychology, Sun Yat-sen University, Guangzhou, ChinaDepartment of Psychology, Sun Yat-sen University, Guangzhou, ChinaDepartment of Psychology, Sun Yat-sen University, Guangzhou, ChinaDepartment of Psychology, Sun Yat-sen University, Guangzhou, ChinaThe visual system is capable of recognizing objects when object information is widely separated in space, as revealed by the Kanizsa-type illusory contours (ICs). Attentional involvement in perception of ICs is an important topic, and the present study examined whether and how the processing of ICs is interfered with by a distractor. Discrimination between thin and short deformations of an illusory circle was investigated in the absence or presence of a central dynamic patch, with difficulty of discrimination varied in three levels (easy, medium, and hard). Reaction time (RT) was significantly shorter in the absence compared to the presence of the distractor in the easy and medium conditions. Correct rate (CR) was significantly higher in the absence compared to the presence of the distractor in the easy condition, and the magnitude of the difference between CRs of distracted and non-distracted responses significantly reduced as task difficulty increased. These results suggested that perception of ICs is more likely to be vulnerable to distraction when more attentional resources remain available. The present finding supports that attention is engaged in perception of ICs and that distraction of IC processing is associated with perceptual load.https://www.frontiersin.org/articles/10.3389/fpsyg.2021.526972/fullillusory contourdistractortask difficultyperceptionattention
spellingShingle Junkai Yang
Junkai Yang
Lisen Sui
Hongyuan Wu
Qian Wu
Xiaolin Mei
Xiang Wu
Interference of Illusory Contour Perception by a Distractor
Frontiers in Psychology
illusory contour
distractor
task difficulty
perception
attention
title Interference of Illusory Contour Perception by a Distractor
title_full Interference of Illusory Contour Perception by a Distractor
title_fullStr Interference of Illusory Contour Perception by a Distractor
title_full_unstemmed Interference of Illusory Contour Perception by a Distractor
title_short Interference of Illusory Contour Perception by a Distractor
title_sort interference of illusory contour perception by a distractor
topic illusory contour
distractor
task difficulty
perception
attention
url https://www.frontiersin.org/articles/10.3389/fpsyg.2021.526972/full
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