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Assessing temporal processing of facial emotion perception with transcranial magnetic stimulation
The ability to process facial expressions can be modified by altering the spatial frequency of the stimuli, an effect that has been attributed to differential properties of visual pathways that convey different types of information to distinct brain regions at different speeds. While this effect sug...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Blackwell Publishing Inc
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3683286/ https://www.ncbi.nlm.nih.gov/pubmed/23785658 http://dx.doi.org/10.1002/brb3.136 |
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author | Rassovsky, Yuri Lee, Junghee Nori, Poorang D Wu, Allan Iacoboni, Marco Breitmeyer, Bruno G Hellemann, Gerhard Green, Michael F |
author_facet | Rassovsky, Yuri Lee, Junghee Nori, Poorang D Wu, Allan Iacoboni, Marco Breitmeyer, Bruno G Hellemann, Gerhard Green, Michael F |
author_sort | Rassovsky, Yuri |
collection | PubMed |
description | The ability to process facial expressions can be modified by altering the spatial frequency of the stimuli, an effect that has been attributed to differential properties of visual pathways that convey different types of information to distinct brain regions at different speeds. While this effect suggests a potential influence of spatial frequency on the processing speed of facial emotion, this hypothesis has not been examined directly. We addressed this question using a facial emotion identification task with photographs containing either high spatial frequency (HSF), low spatial frequency (LSF), or broadband spatial frequency (BSF). Temporal processing of emotion perception was manipulated by suppressing visual perception with a single-pulse transcranial magnetic stimulation (TMS), delivered to the visual cortex at six intervals prior to (forward masking) or following (backward masking) stimulus presentation. Participants performed best in the BSF, followed by LSF, and finally HSF condition. A spatial frequency by forward/backward masking interaction effect demonstrated reduced performance in the forward masking component in the BSF condition and a reversed performance pattern in the HSF condition, with no significant differences between forward and backward masking in the LSF condition. Results indicate that LSF information may play a greater role than HSF information in emotional processing, but may not be sufficient for fast conscious perception of emotion. As both LSF and HSF filtering reduced the speed of extracting emotional information from faces, it is possible that intact BSF faces have an inherent perceptual advantage and hence benefit from faster temporal processing. |
format | Online Article Text |
id | pubmed-3683286 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Blackwell Publishing Inc |
record_format | MEDLINE/PubMed |
spelling | pubmed-36832862013-06-19 Assessing temporal processing of facial emotion perception with transcranial magnetic stimulation Rassovsky, Yuri Lee, Junghee Nori, Poorang D Wu, Allan Iacoboni, Marco Breitmeyer, Bruno G Hellemann, Gerhard Green, Michael F Brain Behav Original Research The ability to process facial expressions can be modified by altering the spatial frequency of the stimuli, an effect that has been attributed to differential properties of visual pathways that convey different types of information to distinct brain regions at different speeds. While this effect suggests a potential influence of spatial frequency on the processing speed of facial emotion, this hypothesis has not been examined directly. We addressed this question using a facial emotion identification task with photographs containing either high spatial frequency (HSF), low spatial frequency (LSF), or broadband spatial frequency (BSF). Temporal processing of emotion perception was manipulated by suppressing visual perception with a single-pulse transcranial magnetic stimulation (TMS), delivered to the visual cortex at six intervals prior to (forward masking) or following (backward masking) stimulus presentation. Participants performed best in the BSF, followed by LSF, and finally HSF condition. A spatial frequency by forward/backward masking interaction effect demonstrated reduced performance in the forward masking component in the BSF condition and a reversed performance pattern in the HSF condition, with no significant differences between forward and backward masking in the LSF condition. Results indicate that LSF information may play a greater role than HSF information in emotional processing, but may not be sufficient for fast conscious perception of emotion. As both LSF and HSF filtering reduced the speed of extracting emotional information from faces, it is possible that intact BSF faces have an inherent perceptual advantage and hence benefit from faster temporal processing. Blackwell Publishing Inc 2013-05 2013-03-26 /pmc/articles/PMC3683286/ /pubmed/23785658 http://dx.doi.org/10.1002/brb3.136 Text en © 2013 Published by Wiley Periodicals, Inc. http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation. |
spellingShingle | Original Research Rassovsky, Yuri Lee, Junghee Nori, Poorang D Wu, Allan Iacoboni, Marco Breitmeyer, Bruno G Hellemann, Gerhard Green, Michael F Assessing temporal processing of facial emotion perception with transcranial magnetic stimulation |
title | Assessing temporal processing of facial emotion perception with transcranial magnetic stimulation |
title_full | Assessing temporal processing of facial emotion perception with transcranial magnetic stimulation |
title_fullStr | Assessing temporal processing of facial emotion perception with transcranial magnetic stimulation |
title_full_unstemmed | Assessing temporal processing of facial emotion perception with transcranial magnetic stimulation |
title_short | Assessing temporal processing of facial emotion perception with transcranial magnetic stimulation |
title_sort | assessing temporal processing of facial emotion perception with transcranial magnetic stimulation |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3683286/ https://www.ncbi.nlm.nih.gov/pubmed/23785658 http://dx.doi.org/10.1002/brb3.136 |
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