The nature of savings associated with a visuomotor adaptation task that involves one arm or both arms

AbstractBeta frequency oscillations in scalp electroencephalography (EEG) recordings over the primary motor cortex have been associated with the preparation and execution of voluntary movements. Here, we test whether changes in beta frequency are related to the preparation of adapted movements in human, and whether such effects generalise to other species (cat). Eleven healthy adult humans performed a joystick visuomotor adaptation task. Beta (15-25Hz) scalp EEG signals recorded over the motor cortex during a pre-movement preparatory phase were, on average, significantly reduced in amplitude during early adaptation trials compared to baseline or late adaptation trials (p=0.01). The changes in beta were not related to measurements of reaction time or duration of the reach. We also recorded LFP activity within the primary motor cortex of three cats during a prism visuomotor adaptation task. Analysis of these signals revealed similar reductions in motor cortical LFP beta frequencies during early adaptation. This effect was also present when controlling for any influence of the reaction time and reaching duration. Overall, the results are consistent with a reduction in pre-movement beta oscillations predicting an increase in adaptive drive in upcoming task performance when motor errors are largest in magnitude and the rate of adaptation is greatest.

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Cerebellum as a forward but not inverse model in visuomotor adaptation task: a tDCS-based and modeling study

Experimental Brain Research ◽

10.1007/s00221-015-4523-2 ◽

2015 ◽

Vol 234 (4) ◽

pp. 997-1012 ◽

Cited By ~ 21

Author(s):

Fatemeh Yavari ◽

Shirin Mahdavi ◽

Farzad Towhidkhah ◽

Mohammad-Ali Ahmadi-Pajouh ◽

Hamed Ekhtiari ◽

...

Keyword(s):

Visuomotor Adaptation ◽

Inverse Model ◽

Adaptation Task ◽

Modeling Study

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Structural Learning in a Visuomotor Adaptation Task Is Explicitly Accessible

eNeuro ◽

10.1523/eneuro.0122-17.2017 ◽

2017 ◽

Vol 4 (4) ◽

pp. ENEURO.0122-17.2017 ◽

Cited By ~ 12

Author(s):

Krista M. Bond ◽

Jordan A. Taylor

Keyword(s):

Visuomotor Adaptation ◽

Structural Learning ◽

Adaptation Task

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Pharmacological Dopamine Manipulation Does Not Alter Reward-Based Improvements in Memory Retention during a Visuomotor Adaptation Task

eNeuro ◽

10.1523/eneuro.0453-17.2018 ◽

2018 ◽

Vol 5 (3) ◽

pp. ENEURO.0453-17.2018 ◽

Cited By ~ 6

Author(s):

Graziella Quattrocchi ◽

Jessica Monaco ◽

Andy Ho ◽

Friederike Irmen ◽

Wolfgang Strube ◽

...

Keyword(s):

Visuomotor Adaptation ◽

Memory Retention ◽

Adaptation Task

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Enhanced visuomotor learning and generalization in expert surgeons

10.1101/611012 ◽

2019 ◽

Author(s):

Christopher L. Hewitson ◽

David M. Kaplan

Keyword(s):

Motor Learning ◽

Minimally Invasive ◽

Human Population ◽

Training Programs ◽

Visuomotor Adaptation ◽

Candidate Selection ◽

Group Differences ◽

Visuomotor Learning ◽

Human Motor ◽

Adaptation Task

AbstractAlthough human motor learning has been intensively studied for many decades, it remains unknown whether group differences are present in expert cohorts that must routinely cope with and learn new visuomotor mappings such as minimally invasive surgeons. Here we show that expert surgeons exhibit greater adaptation and generalization compared to naive controls in a standard visuomotor adaptation task. These findings run counter to a widespread background assumption in the field of motor learning that visuomotor adaptation performance should be largely uniform across the adult human population. Our findings also indicate that differences in basic visuomotor learning capacities, either innate or acquired, might be an important source of difficulty in learning and performing minimally invasive surgery. This information holds potential to guide surgical candidate selection or optimize training programs to address individual needs.

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