Memorized-Delay Reaching Task With Direction and Amplitude During a Covariation of Primate Dorsal Premotor Cell Activity
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چکیده
[PDF] [Full Text] [Abstract] , April , 2010; 103 (4): 2124-2138. J Neurophysiol Joo-Hyun Song and Robert M. McPeek Selection and Movement Production Roles of Narrowand Broad-Spiking Dorsal Premotor Area Neurons in Reach Target [PDF] [Full Text] [Abstract] , May 18, 2010; 10 (5): . J Vis Fabrice R. Sarlegna and Jean Blouin by amplitude control Visual guidance of arm reaching: Online adjustments of movement direction are impaired [PDF] [Full Text] [Abstract] , August , 2010; 104 (2): 799-810. J Neurophysiol Stephen I. Ryu and Krishna V. Shenoy Matthew T. Kaufman, Mark M. Churchland, Gopal Santhanam, Byron M. Yu, Afsheen Afshar, Roles of Monkey Premotor Neuron Classes in Movement Preparation and Execution [PDF] [Full Text] [Abstract] , January , 2011; 105 (1): 454-473. J Neurophysiol Scheidt Xiaolin Liu, Kristine M. Mosier, Ferdinando A. Mussa-Ivaldi, Maura Casadio and Robert A. Scaling of a Newly Learned Sensorimotor Transformation Reorganization of Finger Coordination Patterns During Adaptation to Rotation and [PDF] [Full Text] [Abstract] , January , 2011; 105 (1): 45-59. J Neurophysiol Wilsaan M. Joiner, Obafunso Ajayi, Gary C. Sing and Maurice A. Smith Anisotropic, Gain-Encoding Primitives for Motor Adaptation Linear Hypergeneralization of Learned Dynamics Across Movement Speeds Reveals
منابع مشابه
Covariation of primate dorsal premotor cell activity with direction and amplitude during a memorized-delay reaching task.
Extensive behavioral evidence suggests that the direction and amplitude of reaching movements are planned as two independent parameters by the motor system. However, whereas direction-related activity has been well documented by neurophysiological studies in many motor structures including the dorsal premotor cortex (PMd), there is much less concensus about the prominence and timing of amplitud...
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Recent studies have shown that gaze angle modulates reach-related neural activity in many cortical areas, including the dorsal premotor cortex (PMd), when gaze direction is experimentally controlled by lengthy periods of imposed fixation. We looked for gaze-related modulation in PMd during the brief fixations that occur when a monkey is allowed to look around freely without experimentally impos...
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Local field potentials (LFPs) recorded from primary motor cortex (MI) have been shown to be tuned to the direction of visually guided reaching movements, but MI LFPs have not been shown to be tuned to the direction of an upcoming movement during the delay period that precedes movement in an instructed-delay reaching task. Also, LFPs in dorsal premotor cortex (PMd) have not been investigated in ...
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1. Neuronal activity was recorded in the dorsal premotor cortex (PMd) of two monkeys performing a multidirectional, instructed-delay (ID) reaching task in which visuospatial cues signaled the direction of movement either congruent with the instruction cue ("direct-delay" trials, DD) or redirected 180 degrees opposite to the cue ("redirected-delay" trials, RD). Therefore, this task had two degre...
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We present evidence that the primate brain can simultaneously generate discrete directional signals related to multiple alternative reaching actions before making a decision between them. A monkey performed a task in which the correct target for a reaching movement was specified during two consecutive instructed-delay periods. First, two potential targets were presented; and second, a nonspatia...
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