Abstract
1. 1. During wakefulness, spontaneous electrical activity from the caudate nucleus in man was characterized by an alpha-like rhythm interrupted by bursts of slow and sharp waves. Decreased voltage and marked slowing were observed during light sleep. 2. 2. Somatic and visual stimulation evoked long latency complex and multiphasic activity in the caudate nucleus. 3. 3. “Spindles” or “recruiting” at the scalp could not be induced following electrical stimulation of the caudate nucleus. 4. 4. Behavioral effects of caudate stimulation consisted of interference with repetitive movements and production of autonomic responses when high current intensities were employed. These effects are attributed to current spread to the internal capsule and possibly the septal area.
Published Version
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