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Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two

In the human visual system, different attributes of an object are processed separately and are thought to be then temporarily bound by attention into an integrated representation to produce a specific response. However, if such representations existed in the brain for arbitrary multi-attribute objec...

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Autores principales: Furutate, Mizuki, Fujii, Yumiko, Morita, Hiromi, Morita, Masahiko
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381064/
https://www.ncbi.nlm.nih.gov/pubmed/30814924
http://dx.doi.org/10.3389/fnins.2019.00035
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author Furutate, Mizuki
Fujii, Yumiko
Morita, Hiromi
Morita, Masahiko
author_facet Furutate, Mizuki
Fujii, Yumiko
Morita, Hiromi
Morita, Masahiko
author_sort Furutate, Mizuki
collection PubMed
description In the human visual system, different attributes of an object are processed separately and are thought to be then temporarily bound by attention into an integrated representation to produce a specific response. However, if such representations existed in the brain for arbitrary multi-attribute objects, a combinatorial explosion problem would be unavoidable. Here, we show that attention may bind features of different attributes only in pairs and that bound feature pairs, rather than integrated object representations, are associated with responses for unfamiliar objects. We found that in a mapping task from three-attribute stimuli to responses, presenting three attributes in pairs (two attributes in each window) did not significantly complicate feature integration and response selection when the stimuli were not very familiar. We also found that repeated presentation of the same triple conjunctions significantly improved performance on the stimulus-response task when the correct responses were determined by the combination of three attributes, but this familiarity effect was not observed when the response could be determined by two attributes. These findings indicate that integration of three or more attributes is a distinct process from that of two, requiring long-term learning or some serial process. This suggests that integrated object representations are not formed or are formed only for a limited number of very familiar objects, which resolves the computational difficulty of the binding problem.
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spelling pubmed-63810642019-02-27 Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two Furutate, Mizuki Fujii, Yumiko Morita, Hiromi Morita, Masahiko Front Neurosci Neuroscience In the human visual system, different attributes of an object are processed separately and are thought to be then temporarily bound by attention into an integrated representation to produce a specific response. However, if such representations existed in the brain for arbitrary multi-attribute objects, a combinatorial explosion problem would be unavoidable. Here, we show that attention may bind features of different attributes only in pairs and that bound feature pairs, rather than integrated object representations, are associated with responses for unfamiliar objects. We found that in a mapping task from three-attribute stimuli to responses, presenting three attributes in pairs (two attributes in each window) did not significantly complicate feature integration and response selection when the stimuli were not very familiar. We also found that repeated presentation of the same triple conjunctions significantly improved performance on the stimulus-response task when the correct responses were determined by the combination of three attributes, but this familiarity effect was not observed when the response could be determined by two attributes. These findings indicate that integration of three or more attributes is a distinct process from that of two, requiring long-term learning or some serial process. This suggests that integrated object representations are not formed or are formed only for a limited number of very familiar objects, which resolves the computational difficulty of the binding problem. Frontiers Media S.A. 2019-02-13 /pmc/articles/PMC6381064/ /pubmed/30814924 http://dx.doi.org/10.3389/fnins.2019.00035 Text en Copyright © 2019 Furutate, Fujii, Morita and Morita. http://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
Furutate, Mizuki
Fujii, Yumiko
Morita, Hiromi
Morita, Masahiko
Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two
title Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two
title_full Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two
title_fullStr Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two
title_full_unstemmed Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two
title_short Visual Feature Integration of Three Attributes in Stimulus-Response Mapping Is Distinct From That of Two
title_sort visual feature integration of three attributes in stimulus-response mapping is distinct from that of two
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381064/
https://www.ncbi.nlm.nih.gov/pubmed/30814924
http://dx.doi.org/10.3389/fnins.2019.00035
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