Selectivity of attenuation (i.e., gating) of somatosensory potentials during voluntary movement in humans.

Attenuation of somatosensory evoked potentials (SEPS) recorded from the scalp during voluntary movement occurs for specific combinations of the finger moved and the peripheral nerve stimulated. The cerebral potential component occurring at a latency of 27 msec (P27) evoked either by stimulation of median nerve at the wrist or by stimulation of 1st and 2nd digit nerves in the fingers were selectively attenuated during movement of 1st digit but were not altered during movement of 5th digit. By contrast, the cerebral P27 component evoked by stimulation of ulnar nerve at the wrist or by stimulation of 5th digital nerve were attenuated during movement of that digit but were not altered during movement of 1st digit. Gating of somatosensory activity is a selective phenomenon occurring when movement involves the areas being stimulated.

[1]  J. D. Coulter,et al.  Sensory transmission through lemniscal pathway during voluntary movement in the cat. , 1974, Journal of neurophysiology.

[2]  R. N. Lemon,et al.  Short-latency peripheral inputs to the motor cortex in conscious monkeys , 1979, Brain Research.

[3]  W. R. Adey,et al.  Influence of eye movements on geniculo‐striate excitability in the cat , 1973, The Journal of physiology.

[4]  H. Asanuma.  The Pyramidal Tract , 1981 .

[5]  W. Penfield,et al.  The Cerebral Cortex of Man: A Clinical Study of Localization of Function , 1968 .

[6]  L. Cohen,et al.  Localization, timing and specificity of gating of somatosensory evoked potentials during active movement in man. , 1987, Brain : a journal of neurology.

[7]  W. Penfield.  The Cerebral Cortex of Man , 1950 .

[8]  P. Hazemann,et al.  Effect of voluntary self-paced movements upon auditory and somatosensory evoked potentials in man. , 1975, Electroencephalography and clinical neurophysiology.

[9]  C. Ghez,et al.  Inhibition of afferent transmission in cuneate nucleus during voluntary movement in the cat. , 1972, Brain research.

[10]  C. G. Phillips,et al.  Projection from low‐threshold muscle afferents of hand and forearm to area 3a of baboon's cortex , 1971, The Journal of physiology.

[11]  J. Rothwell,et al.  Gating of somatosensory evoked potentials during different kinds of movement in man. , 1981, Brain : a journal of neurology.

[12]  R. Cooper,et al.  Inhibition of cortical evoked potentials and sensation by self-initiated movement in man , 1975, Nature.

[13]  Emerson Rg,et al.  Generator sources of median somatosensory evoked potentials. , 1984 .

[14]  E. G. Jones,et al.  Intracortical connectivity of architectonic fields in the somatic sensory, motor and parietal cortex of monkeys , 1978, The Journal of comparative neurology.

[15]  J. B. Preston,et al.  Two representations of the hand in area 4 of a primate. II. Somatosensory input organization. , 1982, Journal of neurophysiology.

[16]  L. Kempe.  Handbook of Physiology. Section I. The Nervous System , 1982 .

[17]  L. Cohen,et al.  ‘Gating’ of somatosensory evoked potentials begins before the onset of voluntary movement in man , 1985, Brain Research.

[18]  A. Starr,et al.  INFLUENCE OF MOTOR ACTIVITY ON CLICK-EVOKED RESPONSES IN THE AUDITORY PATHWAY OF WAKING CATS. , 1964, Experimental neurology.

[19]  D Robertson,et al.  Differential enhancement of early and late components of the cerebral somatosensory evoked potentials during forced‐paced cognitive tasks in man , 1977, The Journal of physiology.

[20]  M. Cynader,et al.  Somatosensory cortical map changes following digit amputation in adult monkeys , 1984, The Journal of comparative neurology.

[21]  F C VOLKMANN,et al.  Vision during voluntary saccadic eye movements. , 1962, Journal of the Optical Society of America.