The Role of Cognition in Motor Learning After Stroke

Error augmentation (EA) is a feedback modality that provides subjects with magnified motor errors. In our intervention, subjects are provided with an elbow angle error that will encourage subjects to use more elbow extension during reaching. Thus, subjects are provided with feedback that their elbow has extended less than it actually has and will compensate by extending the elbow further to successfully reach a target. Subjects will receive an elbow flexion error of 15 degrees to encourage elbow extension.

Error augmentation (EA) is a feedback modality that provides subjects with magnified motor errors. In our intervention, subjects are provided with an elbow angle error that will encourage subjects to use more elbow extension during reaching. Thus, subjects are provided with feedback that their elbow has extended less than it actually has and will compensate by extending the elbow further to successfully reach a target. In this case, subjects that do not receive EA feedback will act as sham comparators.