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TitleReduced hedonic valuation of rewards and unaffected cognitive regulation in chronic stress
Author(s)Ferreira, Sónia
Veiga, Carlos
Moreira, Pedro
Magalhães, Ricardo
Coelho, Ana
Marques, Paulo
Nunes, José Carlos Leitão Portugal
Sousa, Nuno
Morgado, Pedro
magnetic resonance imaging
Issue date2019
PublisherFrontiers Media
JournalFrontiers in Neuroscience
CitationFerreira, S., Veiga, C., et. al. (2019). Reduced hedonic valuation of rewards and unaffected cognitive regulation in chronic stress. Frontiers in neuroscience, 13, 724.
Abstract(s)Cognition can influence choices by modulation of decision-making processes. This cognitive regulation is defined as processing information, applying knowledge, and changing preferences to consciously modulate decisions. While cognitive regulation of emotions has been extensively studied in psychiatry, few works have detailed cognitive regulation of decision-making. Stress may influence emotional behavior, cognition, and decision-making. In addition, the brain regions responsible for decision-making are sensitive to stress-induced changes. Thus, we hypothesize that chronic stress may disrupt the ability to regulate choices. Herein, we used a functional magnetic resonance imaging task where fourteen control and fifteen chronically stressed students had to cognitively upregulate or downregulate their craving before placing a bid to obtain food. We found that stressed participants placed lower bids to get the reward and chose less frequently higher bid values for food. Nevertheless, we did not find neural and behavioral differences during cognitive regulation of craving. Our outcomes revealed that chronic stress impacts decision-making after cognitive regulation of craving by reducing the valuation of food rewards but not cognitive modulation itself. Importantly, our results need further validation with larger sample sizes.
Publisher version
AccessOpen access
Appears in Collections:ICVS - Artigos em revistas internacionais / Papers in international journals

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