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  • Title: [Configuration of the electrical field of an evoked potential in in the superiod colliculus of the rabbit brain upon punctiform afferent stimulation].
    Author: Mass AM, Supin AIa.
    Journal: Neirofiziologiia; 1979; 11(5):441-50. PubMed ID: 514407.
    Abstract:
    Evoked potentials were studied in the rabbit superior colliculus to punctiform light stimulation of the receptive field. The evoked potentials were of negative polarity and did not show potential reversion. The depths of recordings were from 0.1 to 1 mM. The 4-6 degrees shift of the punctiform stimulus from the optimal position led to the disappearance of the evoked potential. If large (more than 5-6 degrees) or diffuse stimuli were used the evoked potentials reversed from surface-negative to deep-positive at a depth of 0.3-0.4 mM. It is suggested that the evoked potential to punctiform stimuli indicate more precisely the location of afferent synapses.
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