Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/147132
Title: AGE DIFFERENCES IN APPROACH AND AVOIDANCE LEARNING: LOSS AND GAIN TASKS
Authors: TAN HING CLARA
Keywords: age differences, approach, avoidance, loss, gain
Issue Date: 13-Apr-2018
Citation: TAN HING CLARA (2018-04-13). AGE DIFFERENCES IN APPROACH AND AVOIDANCE LEARNING: LOSS AND GAIN TASKS. ScholarBank@NUS Repository.
Abstract: This study examined concurrent influences of Framing and Learning Biases on accuracy in a Probabilistic Selection Task, across younger adults and young-old adults. Prior research often assumed that Gain framing drives approach behavior and Loss framing drives avoidance behaviors, but learning mechanisms underlying subjectively represented positive and negative feedback in domains of losses and gain remains largely unexplored. We hypothesized that if Gain framing encourages approach behavior and Loss framing encourages avoidance behavior, approach behavior would be greater for younger adults than for young-old adults, as younger adults are expected to show a positive learning bias. Two-way ANOVAs (Domain x Learning Bias) were conducted separately for each age group. Results partially supported our hypothesis as young-old adults showed balanced learning to approach positive feedback and to avoid negative feedback, whereas younger adults showed enhanced learning to approach positive feedback. However, the expected interaction effect between Domain and Learning Biases was not observed. Consistent with previous findings, we observed that younger and young-old adults showed preference for the Win-stay over the Lose-shift strategy. Our results are congruent with the predictions of the computational model of basal ganglia dopamine system, as well as the developmental trend of dopamine decline with age.
URI: http://scholarbank.nus.edu.sg/handle/10635/147132
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