Coordination deficits during trunk-assisted reach-to-grasp movements in Parkinson’s disease
نویسندگان
چکیده
منابع مشابه
Neural coordination during reach-to-grasp.
When reaching to grasp, we coordinate how we preshape the hand with how we move it. To ask how motor cortical neurons participate in this coordination, we examined the interactions between reach- and grasp-related neuronal ensembles while monkeys reached to grasp a variety of different objects in different locations. By describing the dynamics of these two ensembles as trajectories in a low-dim...
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Various movement parameters of grasping movements, like velocity or type of the grasp, have been successfully decoded from neural activity. However, the question of movement event detection from brain activity, that is, decoding the time at which an event occurred (e.g. movement onset), has been addressed less often. Yet, this may be a topic of key importance, as a brain-machine interface (BMI)...
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Kinematics of normal reach-to-grasp function has been investigated, described and debated. Robotic devices are increasingly being used to promote upper limb rehabilitation following neurological disease or injury such as stroke but the kinematics of reach, grasp and release using this technology is largely unknown. The study aim was to characterize the kinematics of robotic (Armeo) assisted rea...
متن کاملInterference from distractors in reach-to-grasp movements.
Descriptions of interference effects from non-relevant stimuli are extensive in visual target detection and identification paradigms. To explore the influence of features of non-relevant objects on reach-to-grasp movements, we instructed healthy normal controls to reach for and pick up a cylinder (target) placed midsagittally 30 cm from the starting position of the hand. In Experiment 1, the ta...
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Expansion of the dorsal pulvinar in humans and its anatomical connectivity suggests its involvement in higher-order cognitive and visuomotor functions. We investigated visuomotor performance in a 31 year old patient (M.B.) with a lesion centered on the medial portion of the dorsal pulvinar (left > right) due to an atypical Sarcoidosis manifestation. Unlike lesions with a vascular etiology, the ...
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ژورنال
عنوان ژورنال: Experimental Brain Research
سال: 2013
ISSN: 0014-4819,1432-1106
DOI: 10.1007/s00221-013-3720-0