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Full-Text Articles in Psychology
The Effects Of A Sympathiomimetric Stressor On The Protestant Ethic Effect In Rats, Peter Mirabelle
The Effects Of A Sympathiomimetric Stressor On The Protestant Ethic Effect In Rats, Peter Mirabelle
Masters Theses & Specialist Projects
In an experiment which investigated the effects of stress on the Protestant Ethic Effect (PEE) 12 Wistar rats were trained for 20 days to barpress for their total water intake. Following training the rats were divided into two groups and were allowed to choose between barpressing for a 10% sucrose solution and consuming a freely available sucrose solution under either stress or nonstress conditions. Stress was defined as a .01 cc per 36g body weight injection of norepinephrine. The stress and nonstress conditions were counterbalanced during the choice session. Regardless of stress order both groups preferred the free over the …
The Effects Of Deprivation Techniques On Body Weight & Propensity To Perform An Operant, Herb Chapman
The Effects Of Deprivation Techniques On Body Weight & Propensity To Perform An Operant, Herb Chapman
Masters Theses & Specialist Projects
Eighteen rats were divided into equal groups which received three different food deprivation procedures: 23 hour deprivation, maintenance at 80% of pre-experimental weights, or fixed daily food allotments of 10 grams. The rats were then given two training sessions with an unearned food source and 15 training sessions earning an identical food source by pressing a lever. Training was followed by three days of choice testing. There were no significant differences between groups in preference for earned rewards during choice testing in degrees of weight loss. However, a correlation comparing propensity to work for pellets with body weight deficit over …
The Effects Of A Drug-Induced Stress On The Contrafreeloading Phenomenon In Rats, Jeanne Bennett
The Effects Of A Drug-Induced Stress On The Contrafreeloading Phenomenon In Rats, Jeanne Bennett
Masters Theses & Specialist Projects
The purpose of this experiment was to determine if stress, induced by intraperitoneal (IP) injections of epinephrine, influenced rats' preference to freeload (drink sucrose solution from a drinking tube) or to work for a liquid reinforcer (obtain sucrose solution by barpressing). Furthermore, the order in which stress was introduced was investigated.
Following two weeks of water deprivation, 6 female and 6 male Hooded rats approximately 90 days old were divided into two experimental groups. The first group (S-N) was stressed the first and second experimental testing days in which a choice was presented between barpressing and freeloading for a 10% …