The anorectic action of naloxone is attenuated by adaptation to a food-deprivation schedule

1982 ◽  
Vol 77 (4) ◽  
pp. 336-338 ◽  
Author(s):  
D. J. Sanger ◽  
P. S. McCarthy
Keyword(s):  
Food Deprivation ◽  
Deprivation Schedule ◽  
Food Deprivation Schedule

Drinking Behavior of Food-Deprived Rats during Feeding Sessions

1971 ◽  
Vol 28 (3) ◽  
pp. 869-870
Author(s):  
Elvis C. Jones
Keyword(s):  
Food Deprivation ◽  
Drinking Behavior ◽  
Deprivation Schedule ◽  
Food Deprivation Schedule

As rats adapted to a food-deprivation schedule, they ate for progressively shorter periods before stopping to drink. The more severely Si were deprived of food, the less food they consumed before initiating drinking.

Bitter and Sweet Saccharin Preferences as a Function of Food Deprivation

1971 ◽  
Vol 29 (2) ◽  
pp. 419-422 ◽  
Author(s):  
Steven R. Hursh ◽  
Robert C. Beck
Keyword(s):  
Food Deprivation ◽  
Deprivation Schedule ◽  
High Concentration ◽  
Food Deprivation Schedule ◽  
Low Concentration

16 rats were given 23-hr. tests with each of 2 low-concentration (sweet by human report) pairs of saccharin (.05% vs .15% and .05% vs .35%) and 2 high-concentration (bitter) pairs (1.15% vs 1.25% and 1.15% vs 1.45%). All Ss were tested under each condition while on ad lib. feeding and while on a 23-hr. food deprivation schedule. Results with the 2 low-concentration pairs showed the typical deprivation-concentration interaction, greatly increased intake for the higher concentration of a pair. There was also an interaction with the “bitter” pairs, due to Ss drinking more of the 1.15% concentration when food-deprived than when non-deprived.

Adaptation to 23.5-Hr. Food and Water Deprivation Schedules in the Rat and Guinea Pig

1974 ◽  
Vol 35 (1) ◽  
pp. 367-370 ◽  
Author(s):  
J. Dutch ◽  
L. B. Brown
Keyword(s):  
Guinea Pig ◽  
Food Deprivation ◽  
Guinea Pigs ◽  
Water Deprivation ◽  
Deprivation Schedule ◽  
Food Deprivation Schedule ◽  
Water Deprivation Schedule

20 rats and 20 guinea pigs were compared on a 23.5-hr. water-deprivation schedule and on a 23.5-hr. food-deprivation schedule. Rats showed a satisfactory adjustment to both these schedules, while guinea pigs adjusted to water-deprivation but not to the food-deprivation schedule.

Maintenance and Measurement of Water-Regulatory Variables through Controlled Feeding

1968 ◽  
Vol 22 (3_suppl) ◽  
pp. 1125-1128
Author(s):  
Lowell T. Crow
Keyword(s):  
Food Deprivation ◽  
Drinking Pattern ◽  
Deprivation Schedule ◽  
Food Deprivation Schedule ◽  
Patterns Of Drinking ◽  
Daily Water ◽  
Ad Libitum ◽  
Ad Libitum Feeding ◽  
Daily Patterns

Daily patterns of drinking were observed in rats under ad libitum feeding conditions and with a 22-hr. food deprivation schedule. It was found that feeding restricted to a specific hour set the daily drinking pattern and allowed a control of daily water-regulatory cycles. The amount of water ingested was found to be greater under the 22-hr. food deprivation than with ad libitum feeding.

Adjustment of the Rat to the 23-HR. Food-Deprivation Schedule under Two Conditions of Water Availability

1965 ◽  
Vol 17 (3) ◽  
pp. 869-870 ◽  
Author(s):  
Robert H. Dufort ◽  
Howard A. Rollins ◽  
Anne J. Funderburk
Keyword(s):  
Food Intake ◽  
Food Deprivation ◽  
Water Availability ◽  
Deprivation Schedule ◽  
Food Deprivation Schedule

Adjustment of rats to the 23-hr. food deprivation schedule was affected by presence or absence of water during the daily 1-hr. food-intake period. Ss with water adjusted in 15–20 days; Ss without water required an estimated 30–35 days to adjust.

Is Hunger Drive Held Constant in the Behavior Experiment Employing a Fixed Food-Deprivation Schedule?

1970 ◽  
Vol 27 (3) ◽  
pp. 735-742
Author(s):  
Gerard Ezinga ◽  
Gilbert Becker
Keyword(s):  
Body Weight ◽  
Food Deprivation ◽  
Fixed Time ◽  
Deprivation Schedule ◽  
Food Deprivation Schedule ◽  
Fixed Amount ◽  
Designed Experiments ◽  
Maintenance Schedules ◽  
Hunger Drive

Body-weight curves based on 4 fixed-amount and 4 fixed-time maintenance schedules are reported. An examination of the literature, using those curves as criteria, suggests an unequivocal “no” to the question posed in the title of this paper. The same curves can serve as one basis for more knowledgably designed experiments in which fixed-deprivation schedules are deemed necessary or convenient.

Frontal Cortex Lesions and Fixed-Interval Acquisition in the Rat

1971 ◽  
Vol 29 (2) ◽  
pp. 387-391
Author(s):  
Nancy Schmitz ◽  
Donald P. Foshee
Keyword(s):  
Frontal Cortex ◽  
Temporal Discrimination ◽  
Fixed Interval ◽  
Behavioral Effects ◽  
Cortical Lesions ◽  
Deprivation Schedule ◽  
Food Deprivation Schedule ◽  
Significant Difference ◽  
Operative Recovery ◽  
Rate Of Response

This research was designed to study the behavioral effects of frontal cortex lesions upon the performance of rats in a fixed-interval reinforcement situation. Prior to testing, 10 Ss were prepared with posterior frontal cortical lesions in areas 10 and 6. 10 control Ss received sham operations. Following post-operative recovery, the animals were placed on a 23-hr. food deprivation schedule and trained to press a bar for a pellet of food which would be delivered only if 1 min. had elapsed since the previous reward. Analysis of variance showed no significant difference between the 2 groups in the ability to learn the temporal discrimination. However, lesioned Ss yielded a significantly divergent distribution of responses within the interval and a much lower terminal rate of response than the controls.

Adaptation to Cyclic Food Deprivation in the Acquisition of an Instrumental Running Response

1964 ◽  
Vol 14 (3) ◽  
pp. 755-758
Author(s):  
Richard R. McMahon ◽  
Paul A. Games
Keyword(s):  
Food Deprivation ◽  
Acquisition Training ◽  
Straight Alley ◽  
Deprivation Schedule ◽  
Log Transformation ◽  
Significant Difference

Groups of 16 rats were placed on a 23-hr. deprivation schedule either 2, 4, 8, or 20 days prior to 10 days of acquisition training in a straight alley. Analyses of daily median latencies and running times, or a log transformation of these, yielded only one significant difference between group means; the 8- and 20-day deprivation groups were faster than the 2- or 4-day groups on log running times over Days 6 to 10. The 8- and 20-day groups had consistently lower variances (within groups) than did the 2- and 4-day groups. A minimum of eight days deprivation is recommended.

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