Functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot‐surface matching
Abstract Background Vision and touch are thought to contribute information to object perception in an independent but complementary manner. The left lateral posterior parietal cortex (LPPC) has long been associated with multisensory information processing, and it plays an important role in visual an...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-03-01
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| Series: | Brain and Behavior |
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| Online Access: | https://doi.org/10.1002/brb3.2033 |
| _version_ | 1818620586996269056 |
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| author | Jiajia Yang Yinghua Yu Hiroaki Shigemasu Hiroshi Kadota Kiyoshi Nakahara Takanori Kochiyama Yoshimichi Ejima Jinglong Wu |
| author_facet | Jiajia Yang Yinghua Yu Hiroaki Shigemasu Hiroshi Kadota Kiyoshi Nakahara Takanori Kochiyama Yoshimichi Ejima Jinglong Wu |
| author_sort | Jiajia Yang |
| collection | DOAJ |
| description | Abstract Background Vision and touch are thought to contribute information to object perception in an independent but complementary manner. The left lateral posterior parietal cortex (LPPC) has long been associated with multisensory information processing, and it plays an important role in visual and haptic crossmodal information retrieval. However, it remains unclear how LPPC subregions are involved in visuo‐haptic crossmodal retrieval processing. Methods In the present study, we used an fMRI experiment with a crossmodal delayed match‐to‐sample paradigm to reveal the functional role of LPPC subregions related to unimodal and crossmodal dot‐surface retrieval. Results The visual‐to‐haptic condition enhanced the activity of the left inferior parietal lobule relative to the haptic unimodal condition, whereas the inverse condition enhanced the activity of the left superior parietal lobule. By contrast, activation of the left intraparietal sulcus did not differ significantly between the crossmodal and unimodal conditions. Seed‐based resting connectivity analysis revealed that these three left LPPC subregions engaged distinct networks, confirming their different functions in crossmodal retrieval processing. Conclusion Taken together, the findings suggest that functional heterogeneity of the left LPPC during visuo‐haptic crossmodal dot‐surface retrieval processing reflects that the left LPPC does not simply contribute to retrieval of past information; rather, each subregion has a specific functional role in resolving different task requirements. |
| first_indexed | 2024-12-16T17:55:45Z |
| format | Article |
| id | doaj.art-21d9f16b59e34e818e957e0530e3cfeb |
| institution | Directory Open Access Journal |
| issn | 2162-3279 |
| language | English |
| last_indexed | 2024-12-16T17:55:45Z |
| publishDate | 2021-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Brain and Behavior |
| spelling | doaj.art-21d9f16b59e34e818e957e0530e3cfeb2022-12-21T22:22:10ZengWileyBrain and Behavior2162-32792021-03-01113n/an/a10.1002/brb3.2033Functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot‐surface matchingJiajia Yang0Yinghua Yu1Hiroaki Shigemasu2Hiroshi Kadota3Kiyoshi Nakahara4Takanori Kochiyama5Yoshimichi Ejima6Jinglong Wu7Graduate School of Interdisciplinary Science and Engineering in Health Systems Okayama University Okayama JapanGraduate School of Interdisciplinary Science and Engineering in Health Systems Okayama University Okayama JapanKochi University of Technology Kochi JapanKochi University of Technology Kochi JapanKochi University of Technology Kochi JapanATR Brain Activity Imaging Center Kyoto JapanGraduate School of Interdisciplinary Science and Engineering in Health Systems Okayama University Okayama JapanGraduate School of Interdisciplinary Science and Engineering in Health Systems Okayama University Okayama JapanAbstract Background Vision and touch are thought to contribute information to object perception in an independent but complementary manner. The left lateral posterior parietal cortex (LPPC) has long been associated with multisensory information processing, and it plays an important role in visual and haptic crossmodal information retrieval. However, it remains unclear how LPPC subregions are involved in visuo‐haptic crossmodal retrieval processing. Methods In the present study, we used an fMRI experiment with a crossmodal delayed match‐to‐sample paradigm to reveal the functional role of LPPC subregions related to unimodal and crossmodal dot‐surface retrieval. Results The visual‐to‐haptic condition enhanced the activity of the left inferior parietal lobule relative to the haptic unimodal condition, whereas the inverse condition enhanced the activity of the left superior parietal lobule. By contrast, activation of the left intraparietal sulcus did not differ significantly between the crossmodal and unimodal conditions. Seed‐based resting connectivity analysis revealed that these three left LPPC subregions engaged distinct networks, confirming their different functions in crossmodal retrieval processing. Conclusion Taken together, the findings suggest that functional heterogeneity of the left LPPC during visuo‐haptic crossmodal dot‐surface retrieval processing reflects that the left LPPC does not simply contribute to retrieval of past information; rather, each subregion has a specific functional role in resolving different task requirements.https://doi.org/10.1002/brb3.2033crossmodal processingfMRIhaptic dot‐surface matchinglateral posterior parietal cortexmemory retrieval |
| spellingShingle | Jiajia Yang Yinghua Yu Hiroaki Shigemasu Hiroshi Kadota Kiyoshi Nakahara Takanori Kochiyama Yoshimichi Ejima Jinglong Wu Functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot‐surface matching Brain and Behavior crossmodal processing fMRI haptic dot‐surface matching lateral posterior parietal cortex memory retrieval |
| title | Functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot‐surface matching |
| title_full | Functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot‐surface matching |
| title_fullStr | Functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot‐surface matching |
| title_full_unstemmed | Functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot‐surface matching |
| title_short | Functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot‐surface matching |
| title_sort | functional heterogeneity in the left lateral posterior parietal cortex during visual and haptic crossmodal dot surface matching |
| topic | crossmodal processing fMRI haptic dot‐surface matching lateral posterior parietal cortex memory retrieval |
| url | https://doi.org/10.1002/brb3.2033 |
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