Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements
Fast signaling from vision and proprioception to muscle activation plays essential roles in quickly correcting movement. Though many studies have demonstrated modulation of the quick sensorimotor responses as depending on context in each modality, the contribution of multimodal information has not b...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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eLife Sciences Publications Ltd
2020-03-01
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| Series: | eLife |
| Subjects: | |
| Online Access: | https://elifesciences.org/articles/52380 |
| _version_ | 1811236844271042560 |
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| author | Sho Ito Hiroaki Gomi |
| author_facet | Sho Ito Hiroaki Gomi |
| author_sort | Sho Ito |
| collection | DOAJ |
| description | Fast signaling from vision and proprioception to muscle activation plays essential roles in quickly correcting movement. Though many studies have demonstrated modulation of the quick sensorimotor responses as depending on context in each modality, the contribution of multimodal information has not been established. Here, we examined whether state estimates contributing to stretch reflexes are represented solely by proprioceptive information or by multimodal information. Unlike previous studies, we newly found a significant stretch-reflex attenuation by the distortion and elimination of visual-feedback without any change in motor tasks. Furthermore, the stretch-reflex amplitude reduced with increasing elimination durations which would degrade state estimates. By contrast, even though a distortion was introduced in the target-motor-mapping, the stretch reflex was not simultaneously attenuated with visuomotor reflex. Our results therefore indicate that the observed stretch-reflex attenuation is specifically ascribed to uncertainty increase in estimating hand states, suggesting multimodal contributions to the generation of stretch reflexes. |
| first_indexed | 2024-04-12T12:15:06Z |
| format | Article |
| id | doaj.art-e2373d320270460c9510aae6eb6590f4 |
| institution | Directory Open Access Journal |
| issn | 2050-084X |
| language | English |
| last_indexed | 2024-04-12T12:15:06Z |
| publishDate | 2020-03-01 |
| publisher | eLife Sciences Publications Ltd |
| record_format | Article |
| series | eLife |
| spelling | doaj.art-e2373d320270460c9510aae6eb6590f42022-12-22T03:33:27ZengeLife Sciences Publications LtdeLife2050-084X2020-03-01910.7554/eLife.52380Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirementsSho Ito0Hiroaki Gomi1https://orcid.org/0000-0003-3541-2251NTT Communication Science Laboratories, Nippon Telegraph and Telephone Co., Kanagawa, JapanNTT Communication Science Laboratories, Nippon Telegraph and Telephone Co., Kanagawa, JapanFast signaling from vision and proprioception to muscle activation plays essential roles in quickly correcting movement. Though many studies have demonstrated modulation of the quick sensorimotor responses as depending on context in each modality, the contribution of multimodal information has not been established. Here, we examined whether state estimates contributing to stretch reflexes are represented solely by proprioceptive information or by multimodal information. Unlike previous studies, we newly found a significant stretch-reflex attenuation by the distortion and elimination of visual-feedback without any change in motor tasks. Furthermore, the stretch-reflex amplitude reduced with increasing elimination durations which would degrade state estimates. By contrast, even though a distortion was introduced in the target-motor-mapping, the stretch reflex was not simultaneously attenuated with visuomotor reflex. Our results therefore indicate that the observed stretch-reflex attenuation is specifically ascribed to uncertainty increase in estimating hand states, suggesting multimodal contributions to the generation of stretch reflexes.https://elifesciences.org/articles/52380sensorimotor hierarchymultimodal state representationtarget reaching movementvisual feedbacklimb state uncertainty |
| spellingShingle | Sho Ito Hiroaki Gomi Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements eLife sensorimotor hierarchy multimodal state representation target reaching movement visual feedback limb state uncertainty |
| title | Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements |
| title_full | Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements |
| title_fullStr | Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements |
| title_full_unstemmed | Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements |
| title_short | Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements |
| title_sort | visually updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements |
| topic | sensorimotor hierarchy multimodal state representation target reaching movement visual feedback limb state uncertainty |
| url | https://elifesciences.org/articles/52380 |
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