Modulation of somatosensory perception by motor intention
- Authors
- Parkinson, Amy; Plukaard, Sarah; Pears, Sally L.; Newport, Roger; Dijkerman, Chris; Jackson, Stephen R.
- Issue Date
- 3월-2011
- Publisher
- ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
- Keywords
- fMRI; Functional connectivity; Motor prediction; Somatosensory function; Motor intention
- Citation
- COGNITIVE NEUROSCIENCE, v.2, no.1, pp.47 - 56
- Indexed
- SCIE
SCOPUS
- Journal Title
- COGNITIVE NEUROSCIENCE
- Volume
- 2
- Number
- 1
- Start Page
- 47
- End Page
- 56
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/112890
- DOI
- 10.1080/17588928.2010.525627
- ISSN
- 1758-8928
- Abstract
- The intention to execute a movement can modulate our perception of sensory events; however, theoretical accounts of these effects, and also empirical data, are often contradictory. We investigated how perception of a somatosensory stimulus differed according to whether it was delivered to a limb being prepared for movement or to a nonmoving limb. Our results demonstrate that individuals perceive a somatosensory stimulus delivered to the "moving" limb as occurring significantly later than when an identical stimulus is delivered to a "nonmoving" limb. Furthermore, human brain imaging (fMRI) analyses demonstrate that this modulation is accompanied by a significant decrease in BOLD signal in the right parietal operculum (SII) for stimuli delivered to the moving limb. These results indicate that during movement preparation a network of premotor brain areas may facilitate movement execution by attenuating the processing of behaviorally irrelevant signals within higher-order secondary somatosensory (SII) areas.
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Collections - Graduate School > Department of Brain and Cognitive Engineering > 1. Journal Articles
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