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MOLAR EFFECTS OF INCREASING AMOUNTS AND IMMEDIACY TO EXTERNAL FOOD SOURCES IN 4-HR SESSIONS
The Psychological Record
  • Abdulrazaq A Imam, Walter Reed Army Institute of Research
  • Steven R Hursh, Walter Reed Army Institute of Research
Document Type
Article
Abstract
Rats worked under a fixed-ratio 45 schedule of reinforcementduring 4-hr long sessions either in sixteen 1S-min work periods (2rats in Experiments 1 and 3) or in a single work period (3 rats inExperiments 2 and 4) while receiving varying amounts of externalfood. In Experiments 1 and 2, a fixed amount of external food wasprovided in different conditions., whereas in Experiments 3 and 4,both earned and total food intake were fixed to a dally maximum.Consumption and responding decreased with availability comparedto nonavailability of external food and systematically declined withincreasing amounts of external food in progressively openeconomies. The independence-quotient statistic was differentiallysensitive to the "delay" to the external food. Discriminability enhancedthe substitution effect of performance-independent food, resu"ing inimproved efficacy of the statistic and the conditions defined alongeconomic continuum.
Citation Information
Abdulrazaq A Imam and Steven R Hursh. "MOLAR EFFECTS OF INCREASING AMOUNTS AND IMMEDIACY TO EXTERNAL FOOD SOURCES IN 4-HR SESSIONS"
Available at: http://works.bepress.com/abdulrazaq_imam/1/