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Distinct Mechanisms in Number Comparison of Random and Regular Dots: An ERP Study

Numerosity comparison for regular patterns shows different features compared with that for random ones in previous studies, suggesting an underlying mechanism distinct from numerosity. In this study, we went further to compare the event-related potentials (ERP) components in numerosity processing of...

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Autores principales: Liu, Wei, Zhao, Yajun, Wang, Chunhui, Wang, Lu, Fu, Ying, Zhang, Zhijun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8789750/
https://www.ncbi.nlm.nih.gov/pubmed/35095437
http://dx.doi.org/10.3389/fnbeh.2021.791289
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author Liu, Wei
Zhao, Yajun
Wang, Chunhui
Wang, Lu
Fu, Ying
Zhang, Zhijun
author_facet Liu, Wei
Zhao, Yajun
Wang, Chunhui
Wang, Lu
Fu, Ying
Zhang, Zhijun
author_sort Liu, Wei
collection PubMed
description Numerosity comparison for regular patterns shows different features compared with that for random ones in previous studies, suggesting an underlying mechanism distinct from numerosity. In this study, we went further to compare the event-related potentials (ERP) components in numerosity processing of random and regular patterns, which are identical in all aspects of texture features except for the distribution. ERP components were recorded and analyzed while participants compared which of the two successively presented sets was more numerous. P2p amplitude was revealed to be significantly weaker for regular patterns compared with that for random patterns over right occipital-parietal cites, whereas no difference was found for P1 or N1 components. The difference in P2p amplitude, which is consistent with the behavior dissociation revealed in our previous studies, suggests that regular distribution can trigger distinct processing in numeral comparison tasks. Processing of continuous magnitudes or configuration cannot explain the decrease in P2p amplitude for regular distributed patterns. Therefore, this study further supports that P2p is mediated by numerosity processing.
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spelling pubmed-87897502022-01-27 Distinct Mechanisms in Number Comparison of Random and Regular Dots: An ERP Study Liu, Wei Zhao, Yajun Wang, Chunhui Wang, Lu Fu, Ying Zhang, Zhijun Front Behav Neurosci Behavioral Neuroscience Numerosity comparison for regular patterns shows different features compared with that for random ones in previous studies, suggesting an underlying mechanism distinct from numerosity. In this study, we went further to compare the event-related potentials (ERP) components in numerosity processing of random and regular patterns, which are identical in all aspects of texture features except for the distribution. ERP components were recorded and analyzed while participants compared which of the two successively presented sets was more numerous. P2p amplitude was revealed to be significantly weaker for regular patterns compared with that for random patterns over right occipital-parietal cites, whereas no difference was found for P1 or N1 components. The difference in P2p amplitude, which is consistent with the behavior dissociation revealed in our previous studies, suggests that regular distribution can trigger distinct processing in numeral comparison tasks. Processing of continuous magnitudes or configuration cannot explain the decrease in P2p amplitude for regular distributed patterns. Therefore, this study further supports that P2p is mediated by numerosity processing. Frontiers Media S.A. 2022-01-12 /pmc/articles/PMC8789750/ /pubmed/35095437 http://dx.doi.org/10.3389/fnbeh.2021.791289 Text en Copyright © 2022 Liu, Zhao, Wang, Wang, Fu and Zhang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Behavioral Neuroscience
Liu, Wei
Zhao, Yajun
Wang, Chunhui
Wang, Lu
Fu, Ying
Zhang, Zhijun
Distinct Mechanisms in Number Comparison of Random and Regular Dots: An ERP Study
title Distinct Mechanisms in Number Comparison of Random and Regular Dots: An ERP Study
title_full Distinct Mechanisms in Number Comparison of Random and Regular Dots: An ERP Study
title_fullStr Distinct Mechanisms in Number Comparison of Random and Regular Dots: An ERP Study
title_full_unstemmed Distinct Mechanisms in Number Comparison of Random and Regular Dots: An ERP Study
title_short Distinct Mechanisms in Number Comparison of Random and Regular Dots: An ERP Study
title_sort distinct mechanisms in number comparison of random and regular dots: an erp study
topic Behavioral Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8789750/
https://www.ncbi.nlm.nih.gov/pubmed/35095437
http://dx.doi.org/10.3389/fnbeh.2021.791289
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