| Popis: |
In previous work, the induction of EEG spindles by low-frequency stimulation of the caudate nucleus, and their elimination by high-frequency stimulation were shown to be correlates of behavioral inhibition and excitation. In this study, inputs to the visual system paired with shocks to the caudate nucleus were shown to block such “caudate-spindles”. Control stimulations in other somatic sensory systems also produced this blocking effect. The ability of the visual input to block spindling depends upon the integrity of the visual system including a cortical area anterior to the striate cortex, the immediate previous experience of the animal with visual stimuli, the general state of excitation of the animal, and the site of stimulation in the visual pathway. In some of these respects, the effects of visual inputs vary markedly from those of auditory stimulation. |
