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Injecting Instructions into Premotor Cortex
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DOI：10.1016/j.neuron.2017.11.006.png)
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摘要
En 中文
The premotor cortex (PM) receives inputs from parietal cortical areas representing processed visuospatial information, translates that information into programs for particular movements, and communicates those programs to the primary motor cortex (M1) for execution. Consistent with this general function, intracortical microstimulation (ICMS) in the PM of sufficient frequency, amplitude, and duration has been shown to evoke complex movements of the arm and hand that vary systematically depending on the locus of stimulation. Using frequencies and amplitudes too low to evoke muscle activity, however, we found that ICMS in the PM can provide instructions to perform specific reach, grasp, and manipulate movements. These instructed actions were not fixed but rather were learned through associations between the arbitrary stimulation locations and particular movements. Low-amplitude ICMS at different PM locations thus evokes distinguishable experiences that can become associated with specific movements arbitrarily, providing a novel means of injecting information into the nervous system.
Keyword:
PRIMARY MOTOR CORTEX
POSTERIOR PARIETAL CORTEX
INTRACORTICAL MICROSTIMULATION
FUNCTIONAL-ORGANIZATION
NEURONAL-ACTIVITY
CORTICAL MICROSTIMULATION
SOMATOSENSORY CORTEX
SEQUENTIAL MOVEMENTS
PERIARCUATE NEURONS
AFFERENT PROPERTIES
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期刊
IF:
15
论文数:
1.4W
被引数:
9.9W
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Microstimulation reveals specialized subregions for different complex movements in posterior parietal cortex of prosimian galagos微刺激揭示了prosimian galagos后顶叶皮层中不同复杂运动的特殊亚区域OAAI
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