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Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search
Does multisensory distractor-target context learning enhance visual search over and above unisensory learning? To address this, we had participants perform a visual search task under both uni- and multisensory conditions. Search arrays consisted of one Gabor target that differed from three homogeneo...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8093296/ https://www.ncbi.nlm.nih.gov/pubmed/33941832 http://dx.doi.org/10.1038/s41598-021-88946-6 |
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author | Chen, Siyi Shi, Zhuanghua Müller, Hermann J. Geyer, Thomas |
author_facet | Chen, Siyi Shi, Zhuanghua Müller, Hermann J. Geyer, Thomas |
author_sort | Chen, Siyi |
collection | PubMed |
description | Does multisensory distractor-target context learning enhance visual search over and above unisensory learning? To address this, we had participants perform a visual search task under both uni- and multisensory conditions. Search arrays consisted of one Gabor target that differed from three homogeneous distractors in orientation; participants had to discriminate the target’s orientation. In the multisensory session, additional tactile (vibration-pattern) stimulation was delivered to two fingers of each hand, with the odd-one-out tactile target and the distractors co-located with the corresponding visual items in half the trials; the other half presented the visual array only. In both sessions, the visual target was embedded within identical (repeated) spatial arrangements of distractors in half of the trials. The results revealed faster response times to targets in repeated versus non-repeated arrays, evidencing ‘contextual cueing’. This effect was enhanced in the multisensory session—importantly, even when the visual arrays presented without concurrent tactile stimulation. Drift–diffusion modeling confirmed that contextual cueing increased the rate at which task-relevant information was accumulated, as well as decreasing the amount of evidence required for a response decision. Importantly, multisensory learning selectively enhanced the evidence-accumulation rate, expediting target detection even when the context memories were triggered by visual stimuli alone. |
format | Online Article Text |
id | pubmed-8093296 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-80932962021-05-05 Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search Chen, Siyi Shi, Zhuanghua Müller, Hermann J. Geyer, Thomas Sci Rep Article Does multisensory distractor-target context learning enhance visual search over and above unisensory learning? To address this, we had participants perform a visual search task under both uni- and multisensory conditions. Search arrays consisted of one Gabor target that differed from three homogeneous distractors in orientation; participants had to discriminate the target’s orientation. In the multisensory session, additional tactile (vibration-pattern) stimulation was delivered to two fingers of each hand, with the odd-one-out tactile target and the distractors co-located with the corresponding visual items in half the trials; the other half presented the visual array only. In both sessions, the visual target was embedded within identical (repeated) spatial arrangements of distractors in half of the trials. The results revealed faster response times to targets in repeated versus non-repeated arrays, evidencing ‘contextual cueing’. This effect was enhanced in the multisensory session—importantly, even when the visual arrays presented without concurrent tactile stimulation. Drift–diffusion modeling confirmed that contextual cueing increased the rate at which task-relevant information was accumulated, as well as decreasing the amount of evidence required for a response decision. Importantly, multisensory learning selectively enhanced the evidence-accumulation rate, expediting target detection even when the context memories were triggered by visual stimuli alone. Nature Publishing Group UK 2021-05-03 /pmc/articles/PMC8093296/ /pubmed/33941832 http://dx.doi.org/10.1038/s41598-021-88946-6 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Chen, Siyi Shi, Zhuanghua Müller, Hermann J. Geyer, Thomas Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search |
title | Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search |
title_full | Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search |
title_fullStr | Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search |
title_full_unstemmed | Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search |
title_short | Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search |
title_sort | multisensory visuo-tactile context learning enhances the guidance of unisensory visual search |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8093296/ https://www.ncbi.nlm.nih.gov/pubmed/33941832 http://dx.doi.org/10.1038/s41598-021-88946-6 |
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