Dissociable Influences of Auditory Object vs. Spatial Attention on Visual System Oscillatory Activity
Given that both auditory and visual systems have anatomically separate object identification (“what”) and spatial (“where”) pathways, it is of interest whether attention-driven cross-sensory modulations occur separately within these feature domains. Here, we investigated how auditory “what” vs. “whe...
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| Format: | Article |
| Language: | en_US |
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Public Library of Science
2012
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| Online Access: | http://hdl.handle.net/1721.1/72420 https://orcid.org/0000-0001-6841-112X |
| _version_ | 1811068828095873024 |
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| author | Ahveninen, Jyrki Jaaskelainen, Iiro P. Belliveau, John W. Hamalainen, Matti S. Lin, Fa-Hsuan Raij, Tommi |
| author2 | Harvard University--MIT Division of Health Sciences and Technology |
| author_facet | Harvard University--MIT Division of Health Sciences and Technology Ahveninen, Jyrki Jaaskelainen, Iiro P. Belliveau, John W. Hamalainen, Matti S. Lin, Fa-Hsuan Raij, Tommi |
| author_sort | Ahveninen, Jyrki |
| collection | MIT |
| description | Given that both auditory and visual systems have anatomically separate object identification (“what”) and spatial (“where”) pathways, it is of interest whether attention-driven cross-sensory modulations occur separately within these feature domains. Here, we investigated how auditory “what” vs. “where” attention tasks modulate activity in visual pathways using cortically constrained source estimates of magnetoencephalograpic (MEG) oscillatory activity. In the absence of visual stimuli or tasks, subjects were presented with a sequence of auditory-stimulus pairs and instructed to selectively attend to phonetic (“what”) vs. spatial (“where”) aspects of these sounds, or to listen passively. To investigate sustained modulatory effects, oscillatory power was estimated from time periods between sound-pair presentations. In comparison to attention to sound locations, phonetic auditory attention was associated with stronger alpha (7–13 Hz) power in several visual areas (primary visual cortex; lingual, fusiform, and inferior temporal gyri, lateral occipital cortex), as well as in higher-order visual/multisensory areas including lateral/medial parietal and retrosplenial cortices. Region-of-interest (ROI) analyses of dynamic changes, from which the sustained effects had been removed, suggested further power increases during Attend Phoneme vs. Location centered at the alpha range 400–600 ms after the onset of second sound of each stimulus pair. These results suggest distinct modulations of visual system oscillatory activity during auditory attention to sound object identity (“what”) vs. sound location (“where”). The alpha modulations could be interpreted to reflect enhanced crossmodal inhibition of feature-specific visual pathways and adjacent audiovisual association areas during “what” vs. “where” auditory attention. |
| first_indexed | 2024-09-23T08:01:42Z |
| format | Article |
| id | mit-1721.1/72420 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:01:42Z |
| publishDate | 2012 |
| publisher | Public Library of Science |
| record_format | dspace |
| spelling | mit-1721.1/724202022-09-23T10:22:10Z Dissociable Influences of Auditory Object vs. Spatial Attention on Visual System Oscillatory Activity Ahveninen, Jyrki Jaaskelainen, Iiro P. Belliveau, John W. Hamalainen, Matti S. Lin, Fa-Hsuan Raij, Tommi Harvard University--MIT Division of Health Sciences and Technology Hamalainen, Matti S. Belliveau, John W. Hamalainen, Matti S. Given that both auditory and visual systems have anatomically separate object identification (“what”) and spatial (“where”) pathways, it is of interest whether attention-driven cross-sensory modulations occur separately within these feature domains. Here, we investigated how auditory “what” vs. “where” attention tasks modulate activity in visual pathways using cortically constrained source estimates of magnetoencephalograpic (MEG) oscillatory activity. In the absence of visual stimuli or tasks, subjects were presented with a sequence of auditory-stimulus pairs and instructed to selectively attend to phonetic (“what”) vs. spatial (“where”) aspects of these sounds, or to listen passively. To investigate sustained modulatory effects, oscillatory power was estimated from time periods between sound-pair presentations. In comparison to attention to sound locations, phonetic auditory attention was associated with stronger alpha (7–13 Hz) power in several visual areas (primary visual cortex; lingual, fusiform, and inferior temporal gyri, lateral occipital cortex), as well as in higher-order visual/multisensory areas including lateral/medial parietal and retrosplenial cortices. Region-of-interest (ROI) analyses of dynamic changes, from which the sustained effects had been removed, suggested further power increases during Attend Phoneme vs. Location centered at the alpha range 400–600 ms after the onset of second sound of each stimulus pair. These results suggest distinct modulations of visual system oscillatory activity during auditory attention to sound object identity (“what”) vs. sound location (“where”). The alpha modulations could be interpreted to reflect enhanced crossmodal inhibition of feature-specific visual pathways and adjacent audiovisual association areas during “what” vs. “where” auditory attention. National Institutes of Health (U.S.) (R01MH083744) National Institutes of Health (U.S.) (R21DC010060) National Institutes of Health (U.S.) (R01HD040712) National Institutes of Health (U.S.) (R01NS037462) National Institutes of Health (U.S.) (R01NS057500) National Institutes of Health (U.S.) (R01NS048279) National Institutes of Health (U.S.) (5R01EB009048) National Institutes of Health (U.S.) (P41RR14075) United States. Dept. of Health and Human Services. Shared Instrumentation Grant Program (Grant number S10RR14798) United States. Dept. of Health and Human Services. Shared Instrumentation Grant Program (Grant number S10RR023401) United States. Dept. of Health and Human Services. Shared Instrumentation Grant Program (Grant number S10RR019307) United States. Dept. of Health and Human Services. Shared Instrumentation Grant Program (Grant number S10RR023043) National Science Foundation (U.S.). (Grant number NSF 0351442) 2012-08-29T15:50:07Z 2012-08-29T15:50:07Z 2012-06 2011-09 Article http://purl.org/eprint/type/JournalArticle 1932-6203 http://hdl.handle.net/1721.1/72420 Ahveninen, Jyrki et al. “Dissociable Influences of Auditory Object Vs. Spatial Attention on Visual System Oscillatory Activity.” Ed. Claude Alain. PLoS ONE 7.6 (2012): e38511. https://orcid.org/0000-0001-6841-112X en_US http://dx.doi.org/10.1371/journal.pone.0038511 PLoS ONE Creative Commons Attribution http://creativecommons.org/licenses/by/2.5/ application/pdf Public Library of Science PLoS |
| spellingShingle | Ahveninen, Jyrki Jaaskelainen, Iiro P. Belliveau, John W. Hamalainen, Matti S. Lin, Fa-Hsuan Raij, Tommi Dissociable Influences of Auditory Object vs. Spatial Attention on Visual System Oscillatory Activity |
| title | Dissociable Influences of Auditory Object vs. Spatial Attention on Visual System Oscillatory Activity |
| title_full | Dissociable Influences of Auditory Object vs. Spatial Attention on Visual System Oscillatory Activity |
| title_fullStr | Dissociable Influences of Auditory Object vs. Spatial Attention on Visual System Oscillatory Activity |
| title_full_unstemmed | Dissociable Influences of Auditory Object vs. Spatial Attention on Visual System Oscillatory Activity |
| title_short | Dissociable Influences of Auditory Object vs. Spatial Attention on Visual System Oscillatory Activity |
| title_sort | dissociable influences of auditory object vs spatial attention on visual system oscillatory activity |
| url | http://hdl.handle.net/1721.1/72420 https://orcid.org/0000-0001-6841-112X |
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