The Arbitrary Mapping of Sensory Inputs to Voluntary and Involuntary Movement: Learning-Dependent Activity in the Motor Cortex and Other Telencephalic Networks
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10.
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Using voluntary motor commands to inhibit involuntary arm movements.
A hallmark of voluntary motor control is the ability to stop an ongoing movement. Is voluntary motor inhibition a general neural mechanism that can be focused on any movement, including involuntary movements, or is it mere termination of a positive voluntary motor command? The involuntary arm lift, or 'floating arm trick', is a distinctive long-lasting reflex of the deltoid muscle. We investiga...
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Introduction: In recent years, optical imaging has attracted a lot of attention from scholars as a non- aggressive, efficient method for evaluating the activities of the motor cortex in the brain. Functional near-infrared spectroscopy (fNIRS (is a tool showing the hemodynamic changes in a cortical area of the brain according to optical principles. The present study has been de...
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17 18 In sensory cortical networks, peripheral inputs differentially activate excitatory and inhibitory 19 neurons. Inhibitory neurons typically have larger responses and broader receptive field tuning 20 compared to excitatory neurons. These differences are thought to underlie the powerful 21 feed-forward inhibition that occurs in response to sensory input. In the motor cortex, as in the 22 so...
متن کاملSomatosensory response properties of excitatory and inhibitory neurons in rat motor cortex.
In sensory cortical networks, peripheral inputs differentially activate excitatory and inhibitory neurons. Inhibitory neurons typically have larger responses and broader receptive field tuning compared with excitatory neurons. These differences are thought to underlie the powerful feedforward inhibition that occurs in response to sensory input. In the motor cortex, as in the somatosensory corte...
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تاریخ انتشار 2005