Use-Dependent Plasticity in Human Primary Motor Hand Area: Synergistic Interplay Between Training and Immobilization
نویسندگان
چکیده
منابع مشابه
Homeostatic-like plasticity of the primary motor hand area is impaired in focal hand dystonia.
The excitability of inhibitory circuits in patients with writer's cramp is reduced at multiple levels within the sensorimotor system, including the primary motor hand area (M1). Although this may play a major role in the pathophysiology of writer's cramp, it is still unclear what factors may cause the imbalance between inhibition and excitation to arise. One possibility is that homeostatic mech...
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Arm-amputation involves two powerful drivers for brain plasticity-sensory deprivation and altered use. However, research has largely focused on sensory deprivation and maladaptive change. Here we show that adaptive patterns of limb usage after amputation drive cortical plasticity. We report that individuals with congenital or acquired limb-absence vary in whether they preferentially use their i...
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The present study examined whether there were different voluntary drives between intended and non-intended muscle contractions. In experiment 1, during intended and non-intended muscle contractions, electromyograms (EMGs) were recorded from the first dorsal interosseous (FDI) and extensor carpi radialis (ECR) muscles when force levels were varied from 10% to 50% maximal voluntary contraction (M...
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چارچوب نظری این مطالعه شامل یک گزارش عملکردی است و مبتنی بر تعریف شیفرین (1987) از مدل چند بعدی وابستگی مطالب است. این مطالعه 10 نشانگر گفتمان (بنابراین ، بله ، بسیار خوب ، باشه ، می دانید ، خوب ، چون، من فکر می کنم ، منظور من این است که ، در واقع) را با توجه به الگوی عملکردی مشلر(1994) در مورد نشانگرهای گفتمان طبقه بندی می کند. این مطالعه به بررسی مشخصات وقوع این عناصر در گفتار فی البداهه دانش...
15 صفحه اولPlasticity and primary motor cortex.
One fundamental function of primary motor cortex (MI) is to control voluntary movements. Recent evidence suggests that this role emerges from distributed networks rather than discrete representations and that in adult mammals these networks are capable of modification. Neuronal recordings and activation patterns revealed with neuroimaging methods have shown considerable plasticity of MI represe...
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ژورنال
عنوان ژورنال: Cerebral Cortex
سال: 2018
ISSN: 1047-3211,1460-2199
DOI: 10.1093/cercor/bhy226