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John W. Krakauer

Researcher at Johns Hopkins University

Publications -  190
Citations -  25005

John W. Krakauer is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Motor learning & Stroke. The author has an hindex of 66, co-authored 169 publications receiving 21008 citations. Previous affiliations of John W. Krakauer include Columbia University Medical Center & Johns Hopkins University School of Medicine.

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Variability in language recovery after first-time stroke

TL;DR: There was significant variability in language recovery after first-time stroke, even in more severe, initial syndromes, and traditional predictors of post-stroke language outcomes did not reliably predict function at 90 days.
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Independence of Movement Preparation and Movement Initiation.

TL;DR: It is shown that the reaction time for a reaching movement does not reflect the moment that the movement becomes ready to execute, and is determined by a separate initiation process, providing an explanation for the sluggishness of typical reaction times.
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Overcoming motor "forgetting" through reinforcement of learned actions.

TL;DR: It is shown that adapted behavior can be stabilized by a period of binary feedback about success and failure in the absence of vector error feedback, and proposed that learning can be decomposed into two components—a fast-learning, fast-forgetting adaptation process that is sensitive to vector errors and insensitive to task success, and a second process driven by success that learns more slowly but is less susceptible to forgetting.
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Adaptation to Visuomotor Rotation Through Interaction Between Posterior Parietal and Motor Cortical Areas

TL;DR: It is proposed that rotation adaptation proceeds through changes in synaptic weights between neurons in posterior parietal cortex and motor cortex driven by a prediction error computed by the cerebellum.