Effects of a Rostral Motor Cortex Lesion on Primary Motor Cortex Hand Representation Topography in Primates
نویسندگان
چکیده
منابع مشابه
Dissociation of Sensorimotor Deficits after Rostral vs. Caudal Lesions in the Primary Motor Cortex Hand Representation
Primary motor cortex (M1) has traditionally been considered a motor structure. While neurophysiologic studies have demonstrated that M1 is also influenced by somatosensory inputs (cutaneous and proprioceptive), the behavioral significance of these inputs has yet to be fully defined in primates. The present study describes differential sensory-related deficits following small ischemic lesions in...
متن کاملDissociation of sensorimotor deficits after rostral versus caudal lesions in the primary motor cortex hand representation.
Primary motor cortex (M1) has traditionally been considered a motor structure. Although neurophysiologic studies have demonstrated that M1 is also influenced by somatosensory inputs (cutaneous and proprioceptive), the behavioral significance of these inputs has yet to be fully defined in primates. The present study describes differential sensory-related deficits after small ischemic lesions in ...
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The brain's primary motor and primary somatosensory cortices are generally viewed as functionally distinct entities. Here we show by means of magnetoencephalography with a phantom-limb patient, that movement of the phantom hand leads to a change in the response of the primary somatosensory cortex to tactile stimulation. This change correlates with the described conscious perception and suggests...
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The purpose of this study was to examine when the muscles and joints of the forelimb become represented in primary motor cortex (M1) during postnatal life and how local representation patterns change. We examined these questions in cats that were anesthetized (45-90 days, n = 14; adults, n = 3) and awake (n = 4; 52-86 days). We used intracortical microstimulation (45 ms duration train, 330 Hz, ...
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The cortical representation of five simple hand and finger movements in the human motor cortex was determined in left- and right-handed people with whole-head magnetoencephalography. Different movements were found to be represented by spatially segregated dipolar sources in primary motor cortex. The spatial arrangement of neuronal sources for digit and wrist movements was nonsomatotopic and var...
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ژورنال
عنوان ژورنال: Neurorehabilitation and Neural Repair
سال: 2007
ISSN: 1545-9683,1552-6844
DOI: 10.1177/1545968306291851