Published in Psychonomic bulletin & review
Motivation is key for performance in domains such as work, sport, and learning. Research has established that motivation and the willingness to invest effort generally increase as a function of reward. However, this view struggles to explain some empirical observations-for example, in the domain of sport, athletes sometimes appear to lose motivatio...
Si la consommation engagée, créative ou impliquée a reçu énormément d’attention dans la recherche en comportement du consommateur, son opposée, la consommation indifférente, est beaucoup moins théorisée. Pourtant, il est probable que ces actes représentent une part non-négligeable des actes de consommation ordinaire, tout en échappant aux théories ...
Published in Biological psychiatry. Cognitive neuroscience and neuroimaging
Motivational deficit is a core clinical manifestation of depression and a strong predictor of treatment failure. However, the underlying mechanisms, which cannot be accessed through conventional questionnaire-based scoring, remain largely unknown. According to decision theory, apathy could result either from biased subjective estimates (of action c...
Cannabis is the third most commonly used controlled substance worldwide, after alcohol and nicotine. With its changing legal profile, a deeper understanding of how cannabis affects the brain and cognition is in urgent need. Cannabis use has historically been linked with the ‘amotivational syndrome’, implying that reward or motivational processes ar...
Published in Cognition
Previous research has shown that a co-actor's willingness to bear the monetary costs of prior cooperative activities influences our cooperative behaviour towards them. But what about when such information is lacking? In addition to monetary costs, people routinely engage in joint actions in which they incur effort costs in order to help each other ...
Published in Brain and cognition
The present article provides a unified systematic account of the role of cognitive control, motivation and dopamine pathways in relation to the development of fatigue. Since cognitive fatigue is considered to be one aspect of the general control system that manages goal activity in the service of motivational requirements (Hockey, 2011), our focus ...
Published in Cognitive, affective & behavioral neuroscience
Cognitive and physical effort are typically regarded as costly, but demands for effort also seemingly boost the appeal of prospects under certain conditions. One contextual factor that might influence choices for or against effort is the mix of different types of demand a decision maker encounters in a given environment. In two foraging experiments...
We attempt to identify and measure knowledge spillovers in the French urban transport sector, which is strongly regulated and where a few large industrial groups are in charge of operating several urban networks. We build and estimate a structural cost model where the service is regulated by a local government and is provided by a single operator. ...
Published in Journal of the International Neuropsychological Society : JINS
There is limited research examining the impact of the validity of cognitive test performance on treatment outcome. All known studies to date have operationalized performance validity dichotomously, leading to the loss of predictive information. Using the range of scores on a performance validity test (PVT), we hypothesized that lower performance at...
Published in Psychoneuroendocrinology
Humans are continuously exposed to stressful challenges in everyday life. Such stressful events trigger a complex physiological reaction - the fight-or-flight response - that can hamper flexible decision-making and learning. Inspired by key neural and peripheral characteristics of the fight-or-flight response, here, we ask whether acute stress chan...
