Stress increases cue-triggered "wanting" for sweet reward in humans

Journal of Experimental Psychology. Animal Learning and Cognition
Eva PoolDavid Sander

Abstract

Stress can increase reward pursuits: This has traditionally been seen as an attempt to relieve negative affect through the hedonic properties of a reward. However, reward pursuit is not always proportional to the pleasure experienced, because reward processing involves distinct components, including the motivation to obtain a reward (i.e., wanting) and the hedonic pleasure during the reward consumption (i.e., liking). Research conducted on rodents demonstrates that stress might directly amplify the cue-triggered wanting, suggesting that under stress wanting can be independent from liking. Here, we aimed to test whether a similar mechanism exists in humans. We used analog of a Pavlovian-Instrumental Transfer test (PIT) with an olfactory reward to measure the cue triggered wanting for a reward but also the sensory hedonic liking felt during the consumption of the same reward. The analog of a PIT procedure, in which participants learned to associate a neutral image and an instrumental action with a chocolate odor, was combined with either a stress-inducing or stress-free behavioral procedure. Results showed that compared with participants in the stress-free condition, those in the stress condition mobilized more effort in instrume...Continue Reading

Citations

Feb 7, 2016·Neuroscience and Biobehavioral Reviews·Eva PoolDavid Sander
Nov 7, 2017·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Kenzie L PrestonDavid H Epstein
Jul 28, 2019·Journal of Clinical Medicine·Andreas HeinzShuyan Liu
Jul 17, 2015·The Journal of Comparative Neurology·Vanessa SennwaldDavid Sander
Sep 2, 2018·Trends in Neurosciences·Elizabeth V Goldfarb, Rajita Sinha
Jun 11, 2021·PloS One·Matthieu IscherSylvain Delplanque
Aug 7, 2021·Addictive Behaviors·Kavinash Loganathan

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