Human Motor Cortex: Sensory Input Data from Single Neuron Recordings

Recordings were made from single neurons in the hand area of the human motor cortex while peripheral physiologic stimuli were applied. Such cells responded only to active and passive hand movements. Tactile and auditory (click) stimuli were ineffective. The majority of cells were activated only by m...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1972-03, Vol.175 (4029), p.1493-1495
Main Authors: Goldring, Sidney, Ratcheson, Robert
Format: Article
Language:English
Subjects:
Action Potentials
Eclosion
Electric Stimulation
Electrodes
Electromyography
Feedback
Fingers
Functional Laterality
Hand - innervation
Hand - physiology
Hands
Hormones
Humans
Motor cortex
Motor Cortex - physiology
Muscle Contraction
Nerves
Neurons
Neurons - physiology
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Summary:Recordings were made from single neurons in the hand area of the human motor cortex while peripheral physiologic stimuli were applied. Such cells responded only to active and passive hand movements. Tactile and auditory (click) stimuli were ineffective. The majority of cells were activated only by movements of the contralateral hand, but a significant number (4 of 16) could be excited if a given movement was made by either hand. Of the cells responding to active movement, some showed an increased discharge before onset of the voluntary action. Such cells were excited by the same movement executed passively, a result that indicates sensory feedback from receptors activated by that movement.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.175.4029.1493