Competition and summation between rewarding effects of sucrose and lateral hypothalamic stimulation in the rat.
Behavioral NeurosciencePublished 1 January 1994
Kent Conover, Peter Shizgal
Citations62
SJR quartileQ2
SJR score0.87
SNIP0.61
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TL;DR
The results imply that the rewarding effects of brain stimulation and intraoral sucrose can be evaluated in a common system of measurement and combined.
Abstract
Rats were offered a forced choice between a train of brain stimulation that varied in strength from trial to trial and a fixed standard reward. This standard reward consisted of an intraoral sucrose infusion presented either alone or paired with an equipreferred train of brain stimulation. Postingestional effects were minimized by opening a gastric cannula. The presence of a sucrose standard led the subjects to forgo trains of brain stimulation for which they had responded when the sucrose was absent. The strength of the brain stimulation required to balance the compound reward exceeded the stimulation strength required to balance a reward consisting of sucrose alone. These results imply that the rewarding effects of brain stimulation and intraoral sucrose can be evaluated in a common system of measurement and combined.
Keywords
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