Stewart Walker

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The post-stimulation excitability of neurons mediating electrical self-stimulation of the anterior basal forebrain was evaluated psychophysically in the rat. Rats with electrodes in the nucleus accumbens, caudate nucleus, lateral preoptic area, diagonal band, or anterior medial forebrain bundle pressed a lever to earn 0.5-s trains of conditioning (C) and(More)
Frequency thresholds for electrical self-stimulation of the medial forebrain bundle were estimated in rats while low frequencies of pulses were applied continuously. When continuous pulses were delivered to the same electrode that received the 0.5-s trains of response-initiated stimulation, thresholds decreased by the free-pulse frequency (Experiment 1),(More)
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