10.5061/DRYAD.81HN422
Stokes, Laura-Jean G.
Lancaster University
Davies, Anna
University of Liverpool
Lattimore, Paul
Bangor University
Winstanley, Catharine
University of British Columbia
Rogers, Robert D.
Bangor University
Data from: Exploring preferences for variable delays over fixed delays to
high-value food rewards as a model of food-seeking behaviours in humans
Dryad
dataset
2019
2019-01-08T15:54:21Z
2019-01-08T15:54:21Z
en
https://doi.org/10.1098/rstb.2018.0141
872040 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Foraging and operant models suggest that animals will tolerate uncertainty
or risk to obtain food quickly. In modern food environments, sustained
access to quick energy-dense foods can promote weight gain. Here, we used
a discrete-choice procedure to examine peoples' decisions about when
next to eat high-value, palatable food rewards, probabilistically
delivered immediately or following longer delays. In Experiment 1,
moderately hungry young females showed consistent preferences for a
variable delay option that delivered food rewards immediately or following
long delays over a fixed delay option that delivered the same rewards
following intermediate delays. These preferences were stronger in females
with higher BMIs compared with lower BMIs, suggesting that quick food can
enhance the value of uncertain or ‘risky’ food-seeking strategies in
individuals vulnerable to future weight gain. In Experiment 2, prior
exposure to a subtle and not easily identifiable food aroma increased
selections of the variable delay option following delayed food rewards in
a mixed sample of male and female adults, providing preliminary evidence
that food cues can sustain uncertain food-seeking strategies. These data
highlight a working hypothesis that the rapid delivery and consumption of
food rewards, and food cues, can increase risk-tolerance in the
food-seeking behaviours of individuals who are vulnerable to weight gain.
Multi-level models for food-scheduling dataR script for multi-level models
for experiments 1 & 2 containing sequence of models for
variable/fixed delay selections, selection time and collection time
models.Phil_trans_Models_FINAL.RFood scheduling Experiment 1 - participant
dataData file for participant data for Experiment 1 of food scheduling
experimentsS1_FINAL_Participant_data.csvFood scheduling Experiment 2 -
participant dataData file of participant data for Experiment 2 of food
scheduling experimentsS2_FINAL_Participant_data.csv