Cerebellar – Premotor cortex interactions underlying visuomotor adaptation
Visuomotor adaptation (VMA) is a form of motor learning essential for performing day to day routines. Theoretical models and empirical evidence suggest a specific cortico-striato-cerebellar loop that mediates early and late learning in VMA. Here, we investigated dynamic changes in neural activity an...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-10-01
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| Series: | NeuroImage |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1053811920306285 |
| _version_ | 1818442044617523200 |
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| author | Elinor Tzvi Fabian Koeth Anke N. Karabanov Hartwig R. Siebner Ulrike M. Krämer |
| author_facet | Elinor Tzvi Fabian Koeth Anke N. Karabanov Hartwig R. Siebner Ulrike M. Krämer |
| author_sort | Elinor Tzvi |
| collection | DOAJ |
| description | Visuomotor adaptation (VMA) is a form of motor learning essential for performing day to day routines. Theoretical models and empirical evidence suggest a specific cortico-striato-cerebellar loop that mediates early and late learning in VMA. Here, we investigated dynamic changes in neural activity and connectivity when learning a novel visuomotor rotation using fMRI. We found that motor cortical regions, parietal cortex and cerebellum are recruited in the early phase of VMA, gradually reduce their activity as learning reaches plateau and rebound when the visuomotor rotation is removed. At this phase, dubbed de-adaptation, individual performance correlated with activity in motor and parietal cortex such that stronger activity was associated with better performance. Theory suggests that VMA is governed by the cortico-striato-cerebellar network during the early phase of learning and by the cortico-cerebellar loop at later stages. We tested this hypothesis using dynamic causal modelling and found distinct modulation of a cerebellar to dorsal premotor cortex (dPMC) loop. Specifically, the cerebellar to dPMC connection was modulated during adaptation, suggesting a release of inhibition and net excitatory effect of cerebellum on dPMC. The modulation of cerebellar to dPMC connection during de-adaptation was specifically related to behavioral learning parameter: stronger release of inhibition of the cerebellar to dPMC connection was associated with better de-adaptation. We interpret these findings to reflect dynamic interactions between representation of movement in cerebellum and visuomotor integration in dPMC. |
| first_indexed | 2024-12-14T18:37:53Z |
| format | Article |
| id | doaj.art-df79c4fbb7d546cab2aef471f116a82e |
| institution | Directory Open Access Journal |
| issn | 1095-9572 |
| language | English |
| last_indexed | 2024-12-14T18:37:53Z |
| publishDate | 2020-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | NeuroImage |
| spelling | doaj.art-df79c4fbb7d546cab2aef471f116a82e2022-12-21T22:51:34ZengElsevierNeuroImage1095-95722020-10-01220117142Cerebellar – Premotor cortex interactions underlying visuomotor adaptationElinor Tzvi0Fabian Koeth1Anke N. Karabanov2Hartwig R. Siebner3Ulrike M. Krämer4Department of Neurology, University of Leipzig, Leipzig, Germany; Corresponding author.Department of Neurology, University of Lübeck, Lübeck, GermanyDanish Research Center for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, DenmarkDanish Research Center for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, DenmarkDepartment of Neurology, University of Lübeck, Lübeck, Germany; Institute of Psychology II, University of Lübeck, Lübeck, GermanyVisuomotor adaptation (VMA) is a form of motor learning essential for performing day to day routines. Theoretical models and empirical evidence suggest a specific cortico-striato-cerebellar loop that mediates early and late learning in VMA. Here, we investigated dynamic changes in neural activity and connectivity when learning a novel visuomotor rotation using fMRI. We found that motor cortical regions, parietal cortex and cerebellum are recruited in the early phase of VMA, gradually reduce their activity as learning reaches plateau and rebound when the visuomotor rotation is removed. At this phase, dubbed de-adaptation, individual performance correlated with activity in motor and parietal cortex such that stronger activity was associated with better performance. Theory suggests that VMA is governed by the cortico-striato-cerebellar network during the early phase of learning and by the cortico-cerebellar loop at later stages. We tested this hypothesis using dynamic causal modelling and found distinct modulation of a cerebellar to dorsal premotor cortex (dPMC) loop. Specifically, the cerebellar to dPMC connection was modulated during adaptation, suggesting a release of inhibition and net excitatory effect of cerebellum on dPMC. The modulation of cerebellar to dPMC connection during de-adaptation was specifically related to behavioral learning parameter: stronger release of inhibition of the cerebellar to dPMC connection was associated with better de-adaptation. We interpret these findings to reflect dynamic interactions between representation of movement in cerebellum and visuomotor integration in dPMC.http://www.sciencedirect.com/science/article/pii/S1053811920306285 |
| spellingShingle | Elinor Tzvi Fabian Koeth Anke N. Karabanov Hartwig R. Siebner Ulrike M. Krämer Cerebellar – Premotor cortex interactions underlying visuomotor adaptation NeuroImage |
| title | Cerebellar – Premotor cortex interactions underlying visuomotor adaptation |
| title_full | Cerebellar – Premotor cortex interactions underlying visuomotor adaptation |
| title_fullStr | Cerebellar – Premotor cortex interactions underlying visuomotor adaptation |
| title_full_unstemmed | Cerebellar – Premotor cortex interactions underlying visuomotor adaptation |
| title_short | Cerebellar – Premotor cortex interactions underlying visuomotor adaptation |
| title_sort | cerebellar premotor cortex interactions underlying visuomotor adaptation |
| url | http://www.sciencedirect.com/science/article/pii/S1053811920306285 |
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