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  • Title: [Motor cortex neuron activity during elaboration of a motor conditioned reflex to electric stimulation of the ventrolateral nucleus of the thalamus].
    Author: Maĭorov VI, Kotliar BI, Ivashchenko OI.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1980; 30(3):497-506. PubMed ID: 7434925.
    Abstract:
    Conditioned fore-leg movement was elaborated in cats to the electrical stimulation of the ventrolateral thalamic nucleus through one of the two chronically implanted electrodes (1+) and differentiation to a stimulation through the other electrode (2-). Then the signal meaning of the stimuli for the same animals was reversed (1-, 2+). Independently of the electrode through which the positive or differentiation stimulus was applied, the following was observed during the conditioned response: 1) in the biceps EMG a response to the conditioned stimulus was recorded with minimal latency of 8--12 ms; when the conditioned and differentiation stimuli were presented at random, the EMG response to the differentiation stimulation was considerably less pronounced or was totally absent: 2) Short-latency excitatory components of neuronal responses in the motor cortex to conditioned stimuli with a latency less than 6 and 12 ms were greater than the corresponding components of the response to differentiation stimuli.
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