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DAILY FEEDING PROCEDURE MODULATES IMPULSIVE CHOICE IN RODENT MODELS OF DECISION-MAKING

Abstract Details

2018, Master of Arts, Miami University, Psychology.
A defining and damaging feature of numerous psychiatric disorders is altered decisionmaking, often leading to severe personal and financial consequences. The use of operant decision-making tasks in rodent models has provided substantial neurobiological and behavioral insight into these disorders, thus elucidating potential therapeutic targets. However, most operant paradigms use food restriction (FR) to motivate subjects. FR causes extensive neurobiological in the brain, dependent on the extent and method of restriction. Current reporting standards do not require studies to report how rats are fed daily, but this may be an important determinant of behavior. The purpose of this study was to determine if the method of daily food administration influences rat performance on commonly used decision-making tasks. Subjects were separated into four feeding conditions: constant value, high percent of body weight, low percent of body weight, and two-hour access daily. Subjects completed delay and probability discounting tasks. Feeding condition had a significant effect on decision-making in both tasks, but most prevalent in probabilistic discounting. These results suggest that subtle changes in daily feeding condition can modulate impulsive decision-making and influence behavior. Thus, current reporting practices surrounding FR may be insufficient and need improvement to reduce the prevalence of this potential confound.
Matthew McMurray, Dr. (Advisor)
Anna Radke, Dr. (Committee Member)
Jennifer Quinn, Dr. (Committee Member)
26 p.

Recommended Citations

Citations

  • Tapp, D. N. (2018). DAILY FEEDING PROCEDURE MODULATES IMPULSIVE CHOICE IN RODENT MODELS OF DECISION-MAKING [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1542730117796672

    APA Style (7th edition)

  • Tapp, Danielle. DAILY FEEDING PROCEDURE MODULATES IMPULSIVE CHOICE IN RODENT MODELS OF DECISION-MAKING . 2018. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1542730117796672.

    MLA Style (8th edition)

  • Tapp, Danielle. "DAILY FEEDING PROCEDURE MODULATES IMPULSIVE CHOICE IN RODENT MODELS OF DECISION-MAKING ." Master's thesis, Miami University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=miami1542730117796672

    Chicago Manual of Style (17th edition)