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Sound category habituation requires task-relevant attention
INTRODUCTION: Processing the wealth of sensory information from the surrounding environment is a vital human function with the potential to develop learning, advance social interactions, and promote safety and well-being. METHODS: To elucidate underlying processes governing these activities we measu...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10628171/ https://www.ncbi.nlm.nih.gov/pubmed/37942141 http://dx.doi.org/10.3389/fnins.2023.1228506 |
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author | Moskowitz, Howard S. Sussman, Elyse S. |
author_facet | Moskowitz, Howard S. Sussman, Elyse S. |
author_sort | Moskowitz, Howard S. |
collection | PubMed |
description | INTRODUCTION: Processing the wealth of sensory information from the surrounding environment is a vital human function with the potential to develop learning, advance social interactions, and promote safety and well-being. METHODS: To elucidate underlying processes governing these activities we measured neurophysiological responses to patterned stimulus sequences during a sound categorization task to evaluate attention effects on implicit learning, sound categorization, and speech perception. Using a unique experimental design, we uncoupled conceptual categorical effects from stimulus-specific effects by presenting categorical stimulus tokens that did not physically repeat. RESULTS: We found effects of implicit learning, categorical habituation, and a speech perception bias when the sounds were attended, and the listeners performed a categorization task (task-relevant). In contrast, there was no evidence of a speech perception bias, implicit learning of the structured sound sequence, or repetition suppression to repeated within-category sounds (no categorical habituation) when participants passively listened to the sounds and watched a silent closed-captioned video (task-irrelevant). No indication of category perception was demonstrated in the scalp-recorded brain components when participants were watching a movie and had no task with the sounds. DISCUSSION: These results demonstrate that attention is required to maintain category identification and expectations induced by a structured sequence when the conceptual information must be extracted from stimuli that are acoustically distinct. Taken together, these striking attention effects support the theoretical view that top-down control is required to initiate expectations for higher level cognitive processing. |
format | Online Article Text |
id | pubmed-10628171 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-106281712023-11-08 Sound category habituation requires task-relevant attention Moskowitz, Howard S. Sussman, Elyse S. Front Neurosci Neuroscience INTRODUCTION: Processing the wealth of sensory information from the surrounding environment is a vital human function with the potential to develop learning, advance social interactions, and promote safety and well-being. METHODS: To elucidate underlying processes governing these activities we measured neurophysiological responses to patterned stimulus sequences during a sound categorization task to evaluate attention effects on implicit learning, sound categorization, and speech perception. Using a unique experimental design, we uncoupled conceptual categorical effects from stimulus-specific effects by presenting categorical stimulus tokens that did not physically repeat. RESULTS: We found effects of implicit learning, categorical habituation, and a speech perception bias when the sounds were attended, and the listeners performed a categorization task (task-relevant). In contrast, there was no evidence of a speech perception bias, implicit learning of the structured sound sequence, or repetition suppression to repeated within-category sounds (no categorical habituation) when participants passively listened to the sounds and watched a silent closed-captioned video (task-irrelevant). No indication of category perception was demonstrated in the scalp-recorded brain components when participants were watching a movie and had no task with the sounds. DISCUSSION: These results demonstrate that attention is required to maintain category identification and expectations induced by a structured sequence when the conceptual information must be extracted from stimuli that are acoustically distinct. Taken together, these striking attention effects support the theoretical view that top-down control is required to initiate expectations for higher level cognitive processing. Frontiers Media S.A. 2023-10-24 /pmc/articles/PMC10628171/ /pubmed/37942141 http://dx.doi.org/10.3389/fnins.2023.1228506 Text en Copyright © 2023 Moskowitz and Sussman. 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 | Neuroscience Moskowitz, Howard S. Sussman, Elyse S. Sound category habituation requires task-relevant attention |
title | Sound category habituation requires task-relevant attention |
title_full | Sound category habituation requires task-relevant attention |
title_fullStr | Sound category habituation requires task-relevant attention |
title_full_unstemmed | Sound category habituation requires task-relevant attention |
title_short | Sound category habituation requires task-relevant attention |
title_sort | sound category habituation requires task-relevant attention |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10628171/ https://www.ncbi.nlm.nih.gov/pubmed/37942141 http://dx.doi.org/10.3389/fnins.2023.1228506 |
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