Error correction strategies for motor behavior after unilateral brain damage: short-term motor learning processes

Neuropsychologia
Numa DancauseM F Levin

Abstract

In order to identify the mechanisms underlying motor impairments and motor learning following stroke-related brain damage, we analyzed correction strategies used by hemiparetic individuals to produce precise elbow flexion movements of the paretic arm and compared them to those of healthy individuals. Participants made rapid elbow flexion movements to a 6 degrees wide target and were instructed to correct movement errors as quickly as possible when a spring-like load was unexpectedly introduced. Angular positions and torques before correction were used to identify error patterns. Results showed that participants with mild hemiparesis minimized movement errors within three trials, as did healthy participants. In contrast, severely affected individuals needed more trials to diminish errors and their movements were inconsistent. Participants with a moderate motor disability used both typical and atypical correction strategies. The differences in correction behaviors likely reflect deficits in arm motor function (r=0.79) and executive function (r=0.58) rather than levels of intellectual function (IQ ratings). Results indicate that the deficits that individuals with stroke experience when adapting their movements to changed load cond...Continue Reading

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Citations

Mar 3, 2005·Experimental Brain Research·Martina RiegerWolfgang Prinz
Oct 27, 2005·Experimental Brain Research·James L PattonFerdinando A Mussa-Ivaldi
Sep 21, 2010·Experimental Brain Research·Antoinette Domingo, Daniel P Ferris
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Sep 28, 2015·Restorative Neurology and Neuroscience·Aditi A MullickMindy F Levin
Jun 25, 2016·TheScientificWorldJournal·Mohd Faizal Mohd ZulkiflyPonnusamy Subramaniam
Apr 10, 2007·Neurorehabilitation and Neural Repair·Lara A BoydCarolee J Winstein
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Sep 15, 2017·Journal of Neurophysiology·Sandeep K SubramanianMindy F Levin
Aug 11, 2020·BioMed Research International·Alice Haniuda MoliternoMaria Tereza Artero Prado Dantas
Mar 14, 2017·Frontiers in Human Neuroscience·Nataliya ShishovSimona Bar-Haim
Nov 26, 2020·Journal of Neuroengineering and Rehabilitation·Yazan Abdel MajeedJames L Patton

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