Effect of claustrum stimulation on neurons of the contralateral medial oculomotor area, in the cat.
In chloralose-anaesthetized cats, the extracellular spontaneous unitary activity was recorded from 157 neurons, located in the medial oculomotor area. 98 units were identified as projecting onto the superior colliculus. Electrical stimulations of the contralateral claustrum provoked, on 13 of these cells, an excitatory effect, lasting 10-35 ms and appearing with a latency of 20-50 ms. Full length section of the corpus callosum totally abolished the contralateral claustrum effect. The results suggest that in the cat, the claustrum may have a role in the bilateral control of the visuo-motor performance.
Institute of Human Physiology, University of Palermo, Italy.
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Crescimanno
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Salerno
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Cortimiglia
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Amato
D000818:Animals; D001479:Basal Ganglia / Q000502:physiology*; D002415:Cats; D004558:Electric Stimulation; D004594:Electrophysiology; D005625:Frontal Lobe / Q000502:physiology*; D007839:Functional Laterality