The role of selective attention in the positivity offset: Evidence from event related potentials

Some research suggests that positive and negative valence stimuli may be processed differently. For example, negative material may capture and hold attention more readily than equally arousing positive material. This is called the negativity bias, and it has been observed as both behavioural and ele...

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Autores principales: Regard M. Booy, Patrick L. Carolan
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Publicado: Public Library of Science (PLoS) 2021
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Acceso en línea:https://doaj.org/article/d0b4da3632264c6b942dd4de84d4617c
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spelling oai:doaj.org-article:d0b4da3632264c6b942dd4de84d4617c2021-11-11T06:44:16ZThe role of selective attention in the positivity offset: Evidence from event related potentials1932-6203https://doaj.org/article/d0b4da3632264c6b942dd4de84d4617c2021-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8565729/?tool=EBIhttps://doaj.org/toc/1932-6203Some research suggests that positive and negative valence stimuli may be processed differently. For example, negative material may capture and hold attention more readily than equally arousing positive material. This is called the negativity bias, and it has been observed as both behavioural and electroencephalographic (EEG) effects. Consequently, it has been attributed to both automatic and elaborative processes. However, at the lowest levels of arousal, faster reaction times and stronger EEG responses to positive material have been observed. This is called the positivity offset, and the underlying cognitive mechanism is less understood. To study the role of selective attention in the positivity offset, participants completed a negative affective priming (NAP) task modified to dissociate priming for positive and negative words. The task required participants to indicate the valence of a target word, while simultaneously ignoring a distractor. In experiment 1, a behavioural facilitation effect (faster response time) was observed for positive words, in stark contrast to the original NAP task. These results were congruent with a previously reported general categorization advantage for positive material. In experiment 2, participants performed the task while EEG was recorded. In additional to replicating the behavioural results from experiment 1, positive words elicited a larger Late Positive Potential (LPP) component on ignored repetition relative to control trials. Surprisingly, negative words elicited a larger LPP than positive words on control trials. These results suggest that the positivity offset may reflect a greater sensitivity to priming effects due to a more flexible attentional set.Regard M. BooyPatrick L. CarolanPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Regard M. Booy
Patrick L. Carolan
The role of selective attention in the positivity offset: Evidence from event related potentials
description Some research suggests that positive and negative valence stimuli may be processed differently. For example, negative material may capture and hold attention more readily than equally arousing positive material. This is called the negativity bias, and it has been observed as both behavioural and electroencephalographic (EEG) effects. Consequently, it has been attributed to both automatic and elaborative processes. However, at the lowest levels of arousal, faster reaction times and stronger EEG responses to positive material have been observed. This is called the positivity offset, and the underlying cognitive mechanism is less understood. To study the role of selective attention in the positivity offset, participants completed a negative affective priming (NAP) task modified to dissociate priming for positive and negative words. The task required participants to indicate the valence of a target word, while simultaneously ignoring a distractor. In experiment 1, a behavioural facilitation effect (faster response time) was observed for positive words, in stark contrast to the original NAP task. These results were congruent with a previously reported general categorization advantage for positive material. In experiment 2, participants performed the task while EEG was recorded. In additional to replicating the behavioural results from experiment 1, positive words elicited a larger Late Positive Potential (LPP) component on ignored repetition relative to control trials. Surprisingly, negative words elicited a larger LPP than positive words on control trials. These results suggest that the positivity offset may reflect a greater sensitivity to priming effects due to a more flexible attentional set.
format article
author Regard M. Booy
Patrick L. Carolan
author_facet Regard M. Booy
Patrick L. Carolan
author_sort Regard M. Booy
title The role of selective attention in the positivity offset: Evidence from event related potentials
title_short The role of selective attention in the positivity offset: Evidence from event related potentials
title_full The role of selective attention in the positivity offset: Evidence from event related potentials
title_fullStr The role of selective attention in the positivity offset: Evidence from event related potentials
title_full_unstemmed The role of selective attention in the positivity offset: Evidence from event related potentials
title_sort role of selective attention in the positivity offset: evidence from event related potentials
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/d0b4da3632264c6b942dd4de84d4617c
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