10.5061/DRYAD.1K79K
Fung, Bowen J.
University of Melbourne
Bode, Stefan
University of Melbourne
Murawski, Carsten
University of Melbourne
Data from: High monetary reward rates and caloric rewards decrease
temporal persistence
Dryad
dataset
2017
Impulsivity
opportunity cost
Foraging
Reward
2017-02-02T14:37:55Z
2017-02-02T14:37:55Z
en
https://doi.org/10.1098/rspb.2016.2759
4689213 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Temporal persistence refers to an individual's capacity to wait for
future rewards, while forgoing possible alternatives. This requires a
trade-off between the potential value of delayed rewards and opportunity
costs, and is relevant to many real-world decisions, such as dieting.
Theoretical models have previously suggested that high monetary reward
rates, or positive energy balance, may result in decreased temporal
persistence. In our study, 50 fasted participants engaged in a temporal
persistence task, incentivised with monetary rewards. In alternating
blocks of this task, rewards were delivered at delays drawn randomly from
distributions with either a lower or higher maximum reward rate. During
some blocks participants received either a caloric drink or water. We used
survival analysis to estimate participants' probability of quitting
conditional on the delay distribution and the consumed liquid.
Participants had a higher probability of quitting in blocks with the
higher reward rate. Furthermore, participants who consumed the caloric
drink had a higher probability of quitting than those who consumed water.
Our results support the predictions from the theoretical models, and
importantly, suggest that both higher monetary reward rates and
physiologically relevant rewards can decrease temporal persistence, which
is a crucial determinant for survival in many species.
DataThis file contains the raw data for all analyses involved in the
study. Variable names should be self-identifying, and all analyses from
the study should be reproducible. Please contact Bowen J Fung
(bowenjfung@gmail.com) if you require clarification or more
information.trialData.csv