دورية أكاديمية
أعرض في EDS

Interlimb Generalization of Learned Bayesian Visuomotor Prior Occurs in Extrinsic Coordinates.

التفاصيل البيبلوغرافية
العنوان: Interlimb Generalization of Learned Bayesian Visuomotor Prior Occurs in Extrinsic Coordinates.
المؤلفون: Hewitson CL; Department of Cognitive Science.; ARC Centre of Excellence in Cognition and its Disorders.; Perception in Action Research Centre, Macquarie University, Sydney, 2109, Australia., Sowman PF; Department of Cognitive Science.; ARC Centre of Excellence in Cognition and its Disorders.; Perception in Action Research Centre, Macquarie University, Sydney, 2109, Australia., Kaplan DM; Department of Cognitive Science.; ARC Centre of Excellence in Cognition and its Disorders.; Perception in Action Research Centre, Macquarie University, Sydney, 2109, Australia.
المصدر: ENeuro [eNeuro] 2018 Aug 08; Vol. 5 (4). Date of Electronic Publication: 2018 Aug 08 (Print Publication: 2018).
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Society for Neuroscience Country of Publication: United States NLM ID: 101647362 Publication Model: eCollection Cited Medium: Internet ISSN: 2373-2822 (Electronic) Linking ISSN: 23732822 NLM ISO Abbreviation: eNeuro Subsets: MEDLINE
أسماء مطبوعة: Original Publication: [Washington, DC] : Society for Neuroscience, [2014]-
مواضيع طبية MeSH: Arm/*physiology , Generalization, Psychological/*physiology , Motor Activity/*physiology , Psychomotor Performance/*physiology , Transfer, Psychology/*physiology , Visual Perception/*physiology, Adolescent ; Adult ; Bayes Theorem ; Biomechanical Phenomena ; Feedback, Sensory/physiology ; Female ; Functional Laterality/physiology ; Humans ; Male ; Middle Aged ; Young Adult
مستخلص: Recent work suggests that the brain represents probability distributions and performs Bayesian integration during sensorimotor learning. However, our understanding of the neural representation of this learning remains limited. To begin to address this, we performed two experiments. In the first experiment, we replicated the key behavioral findings of Körding and Wolpert (2004), demonstrating that humans can perform in a Bayes-optimal manner by combining information about their own sensory uncertainty and a statistical distribution of lateral shifts encountered in a visuomotor adaptation task. In the second experiment, we extended these findings by testing whether visuomotor learning occurring during the same task generalizes from one limb to the other, and relatedly, whether this learning is represented in an extrinsic or intrinsic reference frame. We found that the learned mean of the distribution of visuomotor shifts generalizes to the opposite limb only when the perturbation is congruent in extrinsic coordinates, indicating that the underlying representation of learning acquired during training is available to the untrained limb and is coded in an extrinsic reference frame.
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فهرسة مساهمة: Keywords: Bayesian integration; interlimb generalization; motor learning; sensorimotor learning; transfer; visuomotor adaptation
تواريخ الأحداث: Date Created: 20180823 Date Completed: 20190308 Latest Revision: 20191210
رمز التحديث: 20221213
مُعرف محوري في PubMed: PMC6102376
DOI: 10.1523/ENEURO.0183-18.2018
PMID: 30131969
قاعدة البيانات: MEDLINE
الوصف
تدمد:2373-2822
DOI:10.1523/ENEURO.0183-18.2018