scholarly journals Cocaine and food deprivation : effects on food-reinforced fixed-ratio performance in pigeons /

1991 ◽  
Author(s):  
Christine E. Hughes
Keyword(s):  
Food Deprivation ◽  
Fixed Ratio

scholarly journals COCAINE AND FOOD DEPRIVATION: EFFECTS ON FOOD-REINFORCED FIXED-RATIO PERFORMANCE IN PIGEONS

1996 ◽  
Vol 65 (1) ◽  
pp. 145-158 ◽  
Author(s):  
Christine E. Hughes ◽  
Raymond C. Pitts ◽  
Marc N. Branch
Keyword(s):  
Food Deprivation ◽  
Fixed Ratio

Interaction of D-Amphetamine and Food Deprivation on Fixed Ratio Behavior of Pigeons

1967 ◽  
Vol 20 (2) ◽  
pp. 355-358 ◽  
Author(s):  
Richard F. Meginniss
Keyword(s):  
Food Deprivation ◽  
Fixed Ratio ◽  
Amphetamine Treatment ◽  
Key Pecking ◽  
Ad Libitum ◽  
Ad Libitum Feeding

Four groups of 6 pigeons, maintained at 100, 90, 80, and 70% of their ad libitum feeding weight, showed directly proportional weight-dependent depressant effects on fixed ratio key pecking following d-amphetamine treatment.

Ethanol as a reinforcer: Effects of fixed-ratio size and food deprivation

1973 ◽  
Vol 28 (2) ◽  
pp. 171-183 ◽  
Author(s):  
Richard A. Meisch ◽  
Travis Thompson
Keyword(s):  
Food Deprivation ◽  
Fixed Ratio ◽  
Ratio Size

Effects of Food Deprivation on Fixed Ratio Barpressing in the Presence of Free Food

1977 ◽  
Vol 27 (2) ◽  
pp. 441-448 ◽  
Author(s):  
Lizabeth A. Barclay ◽  
Donald E. Jackson
Keyword(s):  
Food Deprivation ◽  
Fixed Ratio ◽  
Free Food

Effects of Food Deprivation and Methamphetamine on Fixed-Ratio Schedules of Intracranial Self-Stimulation

1965 ◽  
Vol 16 (3_suppl) ◽  
pp. 1225-1233 ◽  
Author(s):  
S. Thomas Elder ◽  
Noel P. Montgomery ◽  
Merrill M. Rye
Keyword(s):  
Food Deprivation ◽  
Fixed Ratio ◽  
Behavioral Characteristics ◽  
Response Class ◽  
Schedule Of Reinforcement ◽  
Self Stimulation

Six rats were implanted with electrodes in the posterior medial forebrain area and trained to bar press for crf ICSS and then shifted to FR schedule of reinforcement. It was observed that Ss had to be “primed” on crf at the beginning of each session; FRs greater than 20 to 30 were not typical, but depriving S of food for 48 hr. increased the size of the terminal ratio; with injection of .3 mgm. methamphetamine, S would hold FR-110; and the contributing influence of long exposure co FR, food starvation, and methamphetamine are consistently reversible. It was concluded that the properties of FR ICSS controlled responding are in many respects unlike the behavioral characteristics of the same response class modified and sustained by FR application of more conventional rewards.

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