1982
DOI: 10.3758/bf03327020
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The effect of train duration of rewarding stimulation on food self-deprivation

Abstract: In order. to assess the effect of changes in brain-stimulation reward (BSR) on food intake, train duration of BSR was manipulated during food/BSR competition periods. Train duration, rather than intensity, was used in order to hold the area of stimulation about the electrode tip constant. Train duration had a significant effect on food intake, with longer durations decreasing intake. Increases in food deprivation increased feeding during food/BSR competition, and the tendency for subjects to self-deprive was r… Show more

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Cited by 5 publications
(5 citation statements)
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“…In agreement with earlier reports [1,3] there was no critical focus within the lateral hypothalamus for evoking stimulus-bound eating. A similar conclusion may be drawn for the electrode sites of animals that were classified as "self-deprivers" as noted earlier by Rossi and Stutz [13] and Frank, Preshaw and Stutz [5]. It should be emphasized, however, that this conclusion applies only to the electrode placements within the medial to posterior extent of the lateral hypothalamus as there were no anterior hypothalamic placements and only one medial placement in our sample.…”
Section: Resultssupporting
confidence: 89%
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“…In agreement with earlier reports [1,3] there was no critical focus within the lateral hypothalamus for evoking stimulus-bound eating. A similar conclusion may be drawn for the electrode sites of animals that were classified as "self-deprivers" as noted earlier by Rossi and Stutz [13] and Frank, Preshaw and Stutz [5]. It should be emphasized, however, that this conclusion applies only to the electrode placements within the medial to posterior extent of the lateral hypothalamus as there were no anterior hypothalamic placements and only one medial placement in our sample.…”
Section: Resultssupporting
confidence: 89%
“…In addition to differences in the strains of rats, the two studies also differed in that baseline self-stimulation rates in the earlier study were obtained while animals were food-deprived. The earlier conclusion that magnitude of brain stimulation reward determines behavior in a competition test may ultimately prove correct [5,6,13,17]. However, in view of the shortcomings of self-stimulation rate as a measure of reward strength [7,19] and the extent of the overlap in rate scores in "deprivers" and "non-deprivers" in the present experiment, it is unlikely that even self-stimulation rates obtained under food deprivation conditions would have been correlated with food pellets eaten in the competition tests.…”
Section: Resultsmentioning
confidence: 98%
“…Notice the gradual increase in the percentage choice of the comparison duration as train duration increases. This finding is consistent with previous research, showing that longer train durations are preferred over shorter durations (Deutsch et al, 1976; Frank et al, 1982). The results seem to indicate that longer durations are more rewarding than shorter durations along the asymptotic part of the train-duration response functions.…”
Section: Resultssupporting
confidence: 93%
“…One potential explanation for the all or nothing responses of the subjects is that once the brain stimulation reaches a reward threshold, the rats respond at near maximal rates in an attempt to keep the stimulation on continuously. This interpretation is consistent with the observation that self-stimulating rats do not respond during a stimulating train (Beyra, 1972) and that self-stimulation response rates increase as train duration is decreased (Frank et al, 1982). At the very short train durations used in Experiments 1–6, these factors lead to very rapid response rates along the asymptotic portion of the train-duration curves.…”
Section: Discussionsupporting
confidence: 90%
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