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• W2912649522 abstract "The brain generally integrates a multitude of sensory signals to form a unified percept. Even in cursor control tasks, such as reaching while looking at rotated visual feedback on a monitor, visual information on cursor position and proprioceptive information on hand position are partially integrated (sensory coupling), resulting in mutual biases of the perceived positions of cursor and hand. Previous studies showed that the strength of sensory coupling (sum of the mutual biases) depends on the experience of kinematic correlations between hand movements and cursor motions, whereas the asymmetry of sensory coupling (difference between the biases) depends on the relative reliabilities (inverse of variability) of hand-position and cursor-position estimates (reliability rule). Furthermore, the precision of movement control and perception of hand position are known to differ between hands (left, right) and workspaces (ipsilateral, contralateral), and so does the experience of kinematic correlations from daily life activities. Thus, in the present study, we tested whether strength and asymmetry of sensory coupling for the endpoints of reaches in a cursor control task differ between the right and left hand and between ipsilateral and contralateral hemispace. No differences were found in the strength of sensory coupling between hands or between hemispaces. However, asymmetry of sensory coupling was less in ipsilateral than in contralateral hemispace: in ipsilateral hemispace, the bias of the perceived hand position was reduced, which was accompanied by a smaller variability of the estimates. The variability of position estimates of the dominant right hand was also less than for the non-dominant left hand, but this difference was not accompanied by a difference in the asymmetry of sensory coupling – a violation of the reliability rule, probably due a stronger influence of visual information on right-hand movements. According to these results, the long-term effects of the experienced kinematic correlation between hand movements and cursor motions on the strength of sensory coupling are generic and not specific for hemispaces or hands, whereas the effects of relative reliabilities on the asymmetry of sensory coupling are specific for hemispaces but not for hands." @default.
• W2912649522 created "2019-02-21" @default.
• W2912649522 creator A5085692686 @default.
• W2912649522 creator A5091013029 @default.
• W2912649522 date "2019-02-12" @default.
• W2912649522 modified "2023-10-18" @default.
• W2912649522 title "Effects of Hand and Hemispace on Multisensory Integration of Hand Position and Visual Feedback" @default.
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• W2912649522 doi "https://doi.org/10.3389/fpsyg.2019.00237" @default.
• W2912649522 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6379332" @default.
• W2912649522 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30809172" @default.
• W2912649522 hasPublicationYear "2019" @default.
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