Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/62402
Título: | Reduced hedonic valuation of rewards and unaffected cognitive regulation in chronic stress |
Autor(es): | Ferreira, Sónia Veiga, Carlos Moreira, Pedro Magalhães, Ricardo Coelho, Ana Marques, Paulo Nunes, José Carlos Leitão Portugal Sousa, Nuno Morgado, Pedro |
Palavras-chave: | stress decision-making cognition magnetic resonance imaging fMRI reward human food |
Data: | 2019 |
Editora: | Frontiers Media |
Revista: | Frontiers in Neuroscience |
Citação: | Ferreira, S., Veiga, C., et. al. (2019). Reduced hedonic valuation of rewards and unaffected cognitive regulation in chronic stress. Frontiers in neuroscience, 13, 724. |
Resumo(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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/62402 |
DOI: | 10.3389/fnins.2019.00724 |
ISSN: | 1662-453X |
e-ISSN: | 1662-5099 |
Versão da editora: | https://www.frontiersin.org/articles/10.3389/fnins.2019.00724/full |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ICVS - Artigos em revistas internacionais / Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Reduced Hedonic Valuation of Rewards and Unaffected Cognitive Regulation in Chronic Stress_8190.pdf | 2,05 MB | Adobe PDF | Ver/Abrir |