Event Title

The effect of changes in effort on risk-sensitive foraging

Faculty Sponsor(s)

Baine Craft, Ph.D.

Project Type

Completed quantitative research study

Primary Department

Psychology

Description

Previous research revealed that rats making responses in running wheels displayed changes in risk-sensitivity when effort is manipulated. However, research has not examined the effects of effort on choice when using a lever-press response. We used a within-subjects design to explore rats' (n = 10) preference for variable or fixed reward options as effort required to press a lever increased. Effort was increased each lever from 10 g to 70 g. We hypothesized that rats would favor the variable option as effort increased. Although, the data did not reveal that rats' choices were significantly altered due to the effort conditions.

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May 31st, 1:00 PM May 31st, 2:00 PM

The effect of changes in effort on risk-sensitive foraging

Previous research revealed that rats making responses in running wheels displayed changes in risk-sensitivity when effort is manipulated. However, research has not examined the effects of effort on choice when using a lever-press response. We used a within-subjects design to explore rats' (n = 10) preference for variable or fixed reward options as effort required to press a lever increased. Effort was increased each lever from 10 g to 70 g. We hypothesized that rats would favor the variable option as effort increased. Although, the data did not reveal that rats' choices were significantly altered due to the effort conditions.