Pre-movement activity of neurons in the parietal associative cortex of the cat during different types of voluntary movement
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Pre-movement activation of electromyographic spike activity of 201 neurons of field 5 was studied in cats trained to carry out a stereotypical act (lifting the anterior footpad to press a pedal) in response to a conditioned stimulus (experimental series 1) and without a conditioned stimulus (self-initiated movement, experimental series 2). In series 1, 69.2% of neurons were activated and 13.5% were inhibited before the movement. Prior changes in activity were also seen in intersignal movements, with activation of 40.6% and inhibition of 21.7% of neurons. The time parameters of excitatory and inhibitory responses in both situations were similar, with pre-movement intervals of 19-1640 msec. In series 2, pre-movement inhibition was seen rather more frequently than activation (36.7% and 33.7% respectively). The earliest changes were inhibitory, occurring some 1800 msec before movements, while excitatory changes occurred only 880 msec before movement. These data indicate the involvement of the parietal associative area in the cat not only in executing, but also in preparing for different types of movement, including self-initiated movements, and that inhibition has an active role in this process.
- T. V. Il'icheva, T. V. Khitrova, I. I. Korenyuk, and V. B. Pavlenko. “The activity of parietofrontal neurons of the cat cortex during voluntary movements,” Fiziol. Zh. SSSR,77, No. 2, 9–16 (1991).
- L. V. Cherenkova and Yu. A. Yunatov, “Visually controlled movements in cats: the effect of inclusion of brain associative structures,” in: Associative Systems of the Brain [in Russian], Leningrad (1985), pp. 208–220.
- G. N. Shevko, and A. S. Afonskii, “The responses of neurons of the temporal associative cortex (field 5) of the cat brain during a conditioned reflex movement,” Neirofiziologiya,19, No. 2, 223–232 (1987).
- H. Deecke, H. Kornhuber, W. Lang, et al., “Timing function of the frontal cortex in sequential motor and learning tasks,” Human Neurobiol.,4, No. 3, 143–154 (1985).
- M. Fabre and P. Busser. “Effects of lesioning the anterior syprasylvan cortex on visuo-motor guidance performance in the cat,” Exp. Brain Res.,41, No. 2, 81–88 (1981).
- R. Hassler and K. Muhs-Clement, “Architectonischer Aufbau des sensorischen und parietal Cortex der Kate,” J. Hirnforsch.,6, No. 6, 377–420 (1964).
- B. Libet, E. Wright, and C. Gleason. “Readiness-potentials preceding unrestricted ‘spontaneous’ pre-planned voluntary acts,” EEG Clin. Neurophysiol.,54, No. 3, 322–335 (1982). CrossRef
- U. B. Mountcastle, J. C. Lynch, A. Georgopoulos, et al., “Posterior parietal association cortex of the monkey: command functions for operation within extrapersonal space,” J. Neurophysiol.,38, No. 4, 841–908 (1975).
- K. Okano and J. Tanji, “Neuronal activities in the primate motor fields of the agranular frontal cortex preceding visually triggered and self-paced movement,” Exp. Brain Res.66, No. 1, 155–156 (1987).
- J. Seal and D. Commenges, “A quantitative analysis of stimulus and movement related responses in the posterior parietal cortex of the monkey,” Exp. Brain. Res.,58, No. 1, 144–153 (1985). CrossRef
- Pre-movement activity of neurons in the parietal associative cortex of the cat during different types of voluntary movement
Neuroscience and Behavioral Physiology
Volume 27, Issue 1 , pp 82-86
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- Kluwer Academic Publishers-Plenum Publishers
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- Neuron activity
- parietal associative cortex
- voluntary movement