Integration of visual feedback and motor learning: Corticospinal vs. corticobulbar pathway
| Autor: | Agostina Casamento-Moran, Basma El Yacoubi, Michele L. Singer, Evangelos A. Christou, Seoung Hoon Park, Ianessa A. Humbert, Alayna E. Ernster |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male medicine.medical_specialty genetic structures Movement Transfer Psychology Pyramidal Tracts Biophysics Experimental and Cognitive Psychology Visual feedback 050105 experimental psychology Task (project management) Young Adult 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Tongue Feedback Sensory medicine Humans Learning Ankle dorsiflexion 0501 psychology and cognitive sciences Orthopedics and Sports Medicine 05 social sciences Motor control General Medicine medicine.anatomical_structure Visual Perception Female Ankle Motor learning Psychology Ankle Joint Psychomotor Performance 030217 neurology & neurosurgery |
| Zdroj: | Human Movement Science. 58:88-96 |
| ISSN: | 0167-9457 |
| DOI: | 10.1016/j.humov.2018.01.002 |
| Popis: | Although movement is controlled by different descending pathways, it remains unknown whether the integration of visual feedback and motor learning differs for movements controlled by different descending pathways. Here, we compare motor control and learning of the ankle joint and tongue because they are primarily controlled by the corticospinal and corticobulbar pathways, respectively. Twelve young adults (19.63 ± 2.11 years, 6 females) practiced a tracking task (combination of 0.02, 0.37, 0.5, and 1 Hz) with ankle dorsiflexion and with tongue elevation for 100 trials. The participants practiced each effector (ankle and tongue) in different days and the order of the effector was counterbalanced. Following practice, participants performed the same tracking task with concurrent contractions of the tongue and ankle (dual tracking task; transfer) with three different visual feedback conditions (no visual feedback, visual feedback only for ankle, visual feedback only for tongue). We quantified the force accuracy (RMSE) from each effector during the practice and transfer periods. During practice, the force accuracy and performance improvement to the visuomotor task was greater for the ankle dorsiflexion than tongue elevation. During the transfer task, the ankle dorsiflexion was more accurate than tongue elevation, independent of whether visual feedback was given for the ankle or tongue. The greater performance improvement for the ankle dorsiflexion during practice was related to superior transfer performance. These findings suggest that the corticospinal pathway integrates visual feedback more efficiently than the corticobulbar pathway, which enhances performance and learning of visuomotor tasks. |
| Databáze: | OpenAIRE |
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