Deficient supplementary motor area at rest: Neural basis of limb kinetic deficits in Parkinson's disease
نویسندگان
چکیده
منابع مشابه
Neural activity in monkey dorsal and ventral cingulate motor areas: comparison with the supplementary motor area.
The cingulate motor areas are a recently discovered group of discrete cortical regions located in the cingulate sulcus with direct connections to the primary motor cortex and spinal cord. Although much is known about their anatomical relationship with other motor areas, relatively little is known about their functional neurophysiology. We investigated neural mechanisms of motor processing in th...
متن کاملDegeneration of the corticofugal tract from the secondary motor area in a Parkinson's disease patient with limb-kinetic apraxia
RATIONALE In this case report, we describe a Parkinson's disease (PD) patient with limb-kinetic apraxia (LKA) in whom degeneration of the corticofugal tract (CFT) from the supplementary motor area (SMA) was observed in diffusion tensor tractography (DTT). PATIENT CONCERNS A 63-year-old woman presented with a loss of dexterity in both upper extremities, which indicated LKA, and typical PD-rela...
متن کاملSurgical treatment of supplementary motor area lesions.
Different portions of the SMA appear to be engaged by different types of neurological functions. It is important to identify the functional activation of SMA in terms of planning the surgical strategy. Our unpublished data from M.D. Anderson suggest that resection of the site of SMA activation based on fMRI is an important parameter for predicting the postoperative neurological deficit. Also, p...
متن کاملFunctional heterogeneity of the supplementary motor area.
BACKGROUND AND PURPOSE The purpose of this study was to assess supplementary motor area (SMA) activation during motor, sensory, word generation, listening comprehension, and working memory tasks by using functional MR imaging (fMRI). Human supplementary motor area (SMA) has been shown to play roles in motor control and other various functions such as sensory, speech expression, and memory. Howe...
متن کاملFunctional Localization of the Supplementary Motor Area
The supplementary motor area (SMA) is a key structure involved in behavioral planning and execution. Although many reports have indicated that SMA is organized somatotopically, its exact organization remains still unclear. This study aimed to functionally map SMA using functional magnetic resonance imaging (fMRI) and validate the fMRI-SMA by electrocortical stimulation (ECS) and postsurgical sy...
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ژورنال
عنوان ژورنال: Human Brain Mapping
سال: 2018
ISSN: 1065-9471,1097-0193
DOI: 10.1002/hbm.24204