Differential effects of skilled reaching training on the temporal and spatial organization of somatosensory input to cortical and striatal motor circuits
Ivica, Nedjeljka LU ; Censoni, Luciano LU ; Sjöbom, Joel LU
; Richter, Ulrike
LU
and Petersson, Per
LU
(2022)
In Journal of Neurophysiology
127(1).
p.225-238
- Abstract
It has been hypothesized that to perform sensorimotor transformations efficiently, somatosensory information being fed back to a particular motor circuit is organized in accordance with the mechanical loading patterns of the skin that result from the motor activity generated by that circuit. Rearrangements of sensory information to different motor circuits could in this respect constitute a key component of sensorimotor learning. We here explored whether the organization of tactile input from the plantar forepaw of the rat to cortical and striatal circuits is affected by a period of extensive sensorimotor training in a skilled reaching and grasping task. Our data show that the representation of tactile stimuli in terms of both temporal... (More)
It has been hypothesized that to perform sensorimotor transformations efficiently, somatosensory information being fed back to a particular motor circuit is organized in accordance with the mechanical loading patterns of the skin that result from the motor activity generated by that circuit. Rearrangements of sensory information to different motor circuits could in this respect constitute a key component of sensorimotor learning. We here explored whether the organization of tactile input from the plantar forepaw of the rat to cortical and striatal circuits is affected by a period of extensive sensorimotor training in a skilled reaching and grasping task. Our data show that the representation of tactile stimuli in terms of both temporal and spatial response patterns changes as a consequence of the training and that spatial changes particularly involve the primary motor cortex. Based on the observed reorganization, we propose that reshaping of the spatiotemporal representation of the tactile afference to motor circuits is an integral component of the learning process that underlies skill acquisition in reaching and grasping.
(Less)
- author
- Ivica, Nedjeljka
LU
; Censoni, Luciano
LU
; Sjöbom, Joel
LU
; Richter, Ulrike
LU
and Petersson, Per
LU
- organization
- publishing date
- 2022-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Corticostriatal, In vivo, Learning, Neurophysiology
- in
- Journal of Neurophysiology
- volume
- 127
- issue
- 1
- pages
- 14 pages
- publisher
- American Physiological Society
- external identifiers
-
- pmid:34936519
- scopus:85123790821
- ISSN
- 0022-3077
- DOI
- 10.1152/jn.00464.2021
- language
- English
- LU publication?
- yes
- id
- 12c68f41-0046-4daf-be22-a6e69b494773
- date added to LUP
- 2022-04-11 15:15:32
- date last changed
- 2024-06-01 09:42:18
@article{12c68f41-0046-4daf-be22-a6e69b494773,
abstract = {{<p>It has been hypothesized that to perform sensorimotor transformations efficiently, somatosensory information being fed back to a particular motor circuit is organized in accordance with the mechanical loading patterns of the skin that result from the motor activity generated by that circuit. Rearrangements of sensory information to different motor circuits could in this respect constitute a key component of sensorimotor learning. We here explored whether the organization of tactile input from the plantar forepaw of the rat to cortical and striatal circuits is affected by a period of extensive sensorimotor training in a skilled reaching and grasping task. Our data show that the representation of tactile stimuli in terms of both temporal and spatial response patterns changes as a consequence of the training and that spatial changes particularly involve the primary motor cortex. Based on the observed reorganization, we propose that reshaping of the spatiotemporal representation of the tactile afference to motor circuits is an integral component of the learning process that underlies skill acquisition in reaching and grasping. </p>}},
author = {{Ivica, Nedjeljka and Censoni, Luciano and Sjöbom, Joel and Richter, Ulrike and Petersson, Per}},
issn = {{0022-3077}},
keywords = {{Corticostriatal; In vivo; Learning; Neurophysiology}},
language = {{eng}},
number = {{1}},
pages = {{225--238}},
publisher = {{American Physiological Society}},
series = {{Journal of Neurophysiology}},
title = {{Differential effects of skilled reaching training on the temporal and spatial organization of somatosensory input to cortical and striatal motor circuits}},
url = {{http://dx.doi.org/10.1152/jn.00464.2021}},
doi = {{10.1152/jn.00464.2021}},
volume = {{127}},
year = {{2022}},
}