The Impact of Selective Spatial Attention on Auditory–Tactile Integration: An Event-Related Potential Study
Background: Auditory–tactile integration is an important research area in multisensory integration. Especially in special environments (e.g., traffic noise and complex work environments), auditory–tactile integration is crucial for human response and decision making. We investigated the influence of...
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MDPI AG
2024-12-01
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| author | Weichao An Nan Zhang Shengnan Li Yinghua Yu Jinglong Wu Jiajia Yang |
| author_facet | Weichao An Nan Zhang Shengnan Li Yinghua Yu Jinglong Wu Jiajia Yang |
| author_sort | Weichao An |
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| description | Background: Auditory–tactile integration is an important research area in multisensory integration. Especially in special environments (e.g., traffic noise and complex work environments), auditory–tactile integration is crucial for human response and decision making. We investigated the influence of attention on the temporal course and spatial distribution of auditory–tactile integration. Methods: Participants received auditory stimuli alone, tactile stimuli alone, and simultaneous auditory and tactile stimuli, which were randomly presented on the left or right side. For each block, participants attended to all stimuli on the designated side and detected uncommon target stimuli while ignoring all stimuli on the other side. Event-related potentials (ERPs) were recorded via 64 scalp electrodes. Integration was quantified by comparing the response to the combined stimulus to the sum of the responses to the auditory and tactile stimuli presented separately. Results: The results demonstrated that compared to the unattended condition, integration occurred earlier and involved more brain regions in the attended condition when the stimulus was presented in the left hemispace. The unattended condition involved a more extensive range of brain regions and occurred earlier than the attended condition when the stimulus was presented in the right hemispace. Conclusions: Attention can modulate auditory–tactile integration and show systematic differences between the left and right hemispaces. These findings contribute to the understanding of the mechanisms of auditory–tactile information processing in the human brain. |
| format | Article |
| id | doaj-art-1bdfd9a6913d4c33a9d912dc82966833 |
| institution | Kabale University |
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| language | English |
| publishDate | 2024-12-01 |
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| series | Brain Sciences |
| spelling | doaj-art-1bdfd9a6913d4c33a9d912dc829668332024-12-27T14:14:56ZengMDPI AGBrain Sciences2076-34252024-12-011412125810.3390/brainsci14121258The Impact of Selective Spatial Attention on Auditory–Tactile Integration: An Event-Related Potential StudyWeichao An0Nan Zhang1Shengnan Li2Yinghua Yu3Jinglong Wu4Jiajia Yang5Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushima-Naka, Okayama 700-8530, JapanGraduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushima-Naka, Okayama 700-8530, JapanGraduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushima-Naka, Okayama 700-8530, JapanGraduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushima-Naka, Okayama 700-8530, JapanGraduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushima-Naka, Okayama 700-8530, JapanGraduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushima-Naka, Okayama 700-8530, JapanBackground: Auditory–tactile integration is an important research area in multisensory integration. Especially in special environments (e.g., traffic noise and complex work environments), auditory–tactile integration is crucial for human response and decision making. We investigated the influence of attention on the temporal course and spatial distribution of auditory–tactile integration. Methods: Participants received auditory stimuli alone, tactile stimuli alone, and simultaneous auditory and tactile stimuli, which were randomly presented on the left or right side. For each block, participants attended to all stimuli on the designated side and detected uncommon target stimuli while ignoring all stimuli on the other side. Event-related potentials (ERPs) were recorded via 64 scalp electrodes. Integration was quantified by comparing the response to the combined stimulus to the sum of the responses to the auditory and tactile stimuli presented separately. Results: The results demonstrated that compared to the unattended condition, integration occurred earlier and involved more brain regions in the attended condition when the stimulus was presented in the left hemispace. The unattended condition involved a more extensive range of brain regions and occurred earlier than the attended condition when the stimulus was presented in the right hemispace. Conclusions: Attention can modulate auditory–tactile integration and show systematic differences between the left and right hemispaces. These findings contribute to the understanding of the mechanisms of auditory–tactile information processing in the human brain.https://www.mdpi.com/2076-3425/14/12/1258auditory–tactile integrationselective spatial attentionevent-related potentialleft–right hemispace differencesspatiotemporal distribution |
| spellingShingle | Weichao An Nan Zhang Shengnan Li Yinghua Yu Jinglong Wu Jiajia Yang The Impact of Selective Spatial Attention on Auditory–Tactile Integration: An Event-Related Potential Study Brain Sciences auditory–tactile integration selective spatial attention event-related potential left–right hemispace differences spatiotemporal distribution |
| title | The Impact of Selective Spatial Attention on Auditory–Tactile Integration: An Event-Related Potential Study |
| title_full | The Impact of Selective Spatial Attention on Auditory–Tactile Integration: An Event-Related Potential Study |
| title_fullStr | The Impact of Selective Spatial Attention on Auditory–Tactile Integration: An Event-Related Potential Study |
| title_full_unstemmed | The Impact of Selective Spatial Attention on Auditory–Tactile Integration: An Event-Related Potential Study |
| title_short | The Impact of Selective Spatial Attention on Auditory–Tactile Integration: An Event-Related Potential Study |
| title_sort | impact of selective spatial attention on auditory tactile integration an event related potential study |
| topic | auditory–tactile integration selective spatial attention event-related potential left–right hemispace differences spatiotemporal distribution |
| url | https://www.mdpi.com/2076-3425/14/12/1258 |
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