par Corlazzoli, Gaia 
Président du jury Destrebecqz, Arnaud
Promoteur Gevers, Wim
Co-Promoteur Desender, Kobe
Publication Non publié, 2024-12-13
Président du jury Destrebecqz, Arnaud
Promoteur Gevers, Wim
Co-Promoteur Desender, Kobe
Publication Non publié, 2024-12-13
Thèse de doctorat
| Résumé : | This thesis investigates two key questions: how subjective experiences are shaped by internal and external cues, and how these experiences drive our decisions. We focus on three specific subjective experiences: confidence, effort, and subjective reward, which we propose align with the components of the cost-benefit analysis underlying decisions to invest cognitive effort. Building on the framework of Shenhav et al. (2013), we suggest that confidence reflects the likelihood of success, subjective reward captures perceived value, and the feeling of effort represents the cost of control.The first part of the work explores how these subjective experiences are formed, with a particular emphasis on the feeling of effort. Through different studies, we manipulated factors such as task difficulty, preparation and reward expectations to understand how they influence the perception of effort in cognitive tasks.The second part examines how these subjective experiences influence decision-making, alongside task parameters. To investigate this, we developed a new experimental protocol that combined manipulations of perceptual evidence (using random dot motion tasks), physical effort, and reward prediction errors. This approach was applied to both individual and group decision-making settings, offering insights into how subjective and objective factors are used in effort-based decision-making.Finally, I bring together the experimental findings to discuss the mechanisms linking subjective experiences to decision-making. Methodological reflections on protocol design are also included, offering guidance for future research. |
