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THE RELATIONSHIP BETWEEN FEEDING RATE AND PATCH CHOICE

 

作者: Deanne F. Johnson,   George Collier,  

 

期刊: Journal of the Experimental Analysis of Behavior  (WILEY Available online 1991)
卷期: Volume 55, issue 1  

页码: 79-95

 

ISSN:0022-5002

 

年代: 1991

 

DOI:10.1901/jeab.1991.55-79

 

出版商: Blackwell Publishing Ltd

 

关键词: food intake;choice;closed economy;fixed‐interval schedules;reinforcer size;consumption rate;lever press;rats

 

数据来源: WILEY

 

摘要:

Rats in a laboratory foraging simulation searched for sequential opportunities to feed in two patches that differed in the rate at which food pellets were delivered (controlled by fixed‐interval schedules) and in the size of the pellets. The profitability of feeding in each patch was calculated in terms of time (grams per minute) and in terms of effort (grams per bar press). These values were the result of the imposed fixed interval, the size of the pellets, and the rate at which the rats pressed the bar in each condition. The rats ate more food and larger meals, but not more frequent meals, at the patch offering the higher rate of food consumption, calculated as grams per minute. The relative intake at any patch was a function of the relative rate of intake during meals at that patch compared to the other patch. Rats respond to explicit manipulations of feeding time in the same manner as they respond to manipulations of feeding effor

 

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