P300 as a correlate of false beliefs and false statements

Abstract Introduction This study investigates P300 as a component for false belief and false statement processing with and without a communicative context. The purpose is to understand why P300 has been shown to be commonly involved in false belief and lie processing. Methods Participants were prese...

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Main Authors: Yang Wang, Carrey Tik Sze Siu, Him Cheung
Format: Article
Language:English
Published: Wiley 2023-06-01
Series:Brain and Behavior
Subjects:
Online Access:https://doi.org/10.1002/brb3.3021
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author Yang Wang
Carrey Tik Sze Siu
Him Cheung
author_facet Yang Wang
Carrey Tik Sze Siu
Him Cheung
author_sort Yang Wang
collection DOAJ
description Abstract Introduction This study investigates P300 as a component for false belief and false statement processing with and without a communicative context. The purpose is to understand why P300 has been shown to be commonly involved in false belief and lie processing. Methods Participants were presented with a story in which the protagonist holds a true belief and makes a true statement of it (true belief), holds a false belief and makes a true statement (false belief), or holds a true belief and makes a false statement (false statement) while electroencephalograms were recorded. Results In Experiment 1, featuring a solitary protagonist, stronger posterior P300 was shown in the false belief condition than the true belief and false statement condition. With the installation of a communicative context by including a second character listening to the protagonist, Experiment 2 showed enhanced frontal P300 in the false statement condition compared to the true belief and false belief condition. A late slow wave was more prominent in the false belief condition than in the other two conditions in Experiment 2. Conclusion The present results suggest a situation‐dependent nature of P300. The signal captures the discrepancy between belief and reality more readily than that between belief and words under a noncommunicative context. It becomes more sensitive to the discrepancy between belief and words than that between belief and reality in a communicative situation with an audience, which makes any false statement practically a lie.
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spelling doaj.art-e596493183964979b6145512bb3f7be02023-06-16T18:11:55ZengWileyBrain and Behavior2162-32792023-06-01136n/an/a10.1002/brb3.3021P300 as a correlate of false beliefs and false statementsYang Wang0Carrey Tik Sze Siu1Him Cheung2Department of Behavioural and Social Sciences The City University of Hong Kong Hong Kong SAR ChinaDepartment of Early Childhood Education The Education University of Hong Kong Hong Kong SAR ChinaDepartment of Early Childhood Education The Education University of Hong Kong Hong Kong SAR ChinaAbstract Introduction This study investigates P300 as a component for false belief and false statement processing with and without a communicative context. The purpose is to understand why P300 has been shown to be commonly involved in false belief and lie processing. Methods Participants were presented with a story in which the protagonist holds a true belief and makes a true statement of it (true belief), holds a false belief and makes a true statement (false belief), or holds a true belief and makes a false statement (false statement) while electroencephalograms were recorded. Results In Experiment 1, featuring a solitary protagonist, stronger posterior P300 was shown in the false belief condition than the true belief and false statement condition. With the installation of a communicative context by including a second character listening to the protagonist, Experiment 2 showed enhanced frontal P300 in the false statement condition compared to the true belief and false belief condition. A late slow wave was more prominent in the false belief condition than in the other two conditions in Experiment 2. Conclusion The present results suggest a situation‐dependent nature of P300. The signal captures the discrepancy between belief and reality more readily than that between belief and words under a noncommunicative context. It becomes more sensitive to the discrepancy between belief and words than that between belief and reality in a communicative situation with an audience, which makes any false statement practically a lie.https://doi.org/10.1002/brb3.3021false belieflieLSWP300theory of mind
spellingShingle Yang Wang
Carrey Tik Sze Siu
Him Cheung
P300 as a correlate of false beliefs and false statements
Brain and Behavior
false belief
lie
LSW
P300
theory of mind
title P300 as a correlate of false beliefs and false statements
title_full P300 as a correlate of false beliefs and false statements
title_fullStr P300 as a correlate of false beliefs and false statements
title_full_unstemmed P300 as a correlate of false beliefs and false statements
title_short P300 as a correlate of false beliefs and false statements
title_sort p300 as a correlate of false beliefs and false statements
topic false belief
lie
LSW
P300
theory of mind
url https://doi.org/10.1002/brb3.3021
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AT himcheung p300asacorrelateoffalsebeliefsandfalsestatements