Neurophysiol T . Brochier , R . L . Spinks , M . A . Umilta and R . N . Lemon Grasp by the Macaque Monkey Patterns of Muscle Activity Underlying Object - Specific
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JN T . Brochier , R . L . Spinks , M . A . Umilta and R . N . Lemon Grasp by the Macaque Monkey Patterns of Muscle Activity Underlying Object - Specific
[PDF] [Full Text] [Abstract] , December 1, 2004; 92 (6): 3210-3220. J Neurophysiol S. A. Winges and M. Santello Common Input to Motor Units of Digit Flexors During Multi-Digit Grasping [PDF] [Full Text] [Abstract] , January 18, 2005; 102 (3): 898-903. PNAS L. Cattaneo, M. Voss, T. Brochier, G. Prabhu, D. M. Wolpert and R. N. Lemon A cortico-cortical mechanism mediating object-driven grasp i...
متن کاملPatterns of muscle activity underlying object-specific grasp by the macaque monkey.
During object grasp, a coordinated activation of distal muscles is required to shape the hand in relation to the physical properties of the object. Despite the fundamental importance of the grasping action, little is known of the muscular activation patterns that allow objects of different sizes and shapes to be grasped. In a study of two adult macaque monkeys, we investigated whether we could ...
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To understand the relative contributions of primary motor cortex (M1) and area F5 of the ventral premotor cortex (PMv) to visually guided grasp, we made simultaneous multiple electrode recordings from the hand representations of these two areas in two adult macaque monkeys. The monkeys were trained to fixate, reach out and grasp one of six objects presented in a pseudorandom order. In M1 326 ta...
متن کاملModulation of primary motor cortex outputs from ventral premotor cortex during visually guided grasp in the macaque monkey.
Area F5, in the ventral premotor cortex of the macaque monkey, plays a critical role in determining the hand shape appropriate for grasp of a visible object. F5 neurones show increased firing for particular types of grasp, and inactivation of F5 produces deficits in visually guided grasp. But how is F5 activity transformed into the appropriate pattern of hand muscle activity for efficient grasp...
متن کاملSelectivity for grasp in local field potential and single neuron activity recorded simultaneously from M1 and F5 in the awake macaque monkey.
The selectivity for object-specific grasp in local field potentials (LFPs) was investigated in two awake macaque monkeys trained to observe, reach out, grasp and hold one of six objects presented in a pseudorandom order. Simultaneous, multiple electrode recordings were made from the hand representations of primary motor cortex (M1) and ventral premotor cortex (area F5). LFP activity was well de...
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