Behavioral modeling of human choices reveals dissociable effects of physical effort and temporal delay on reward devaluation.

ABSTRACT: There has been considerable interest from the fields of biology, economics, psychology, and ecology about how decision costs decrease the value of rewarding outcomes. For example, formal descriptions of how reward value changes with increasing temporal delays allow for quantifying individual decision preferences, as in animal species populating different habitats, or normal and clinical human populations. Strikingly, it remains largely unclear how humans evaluate rewards when these are tied to energetic costs, despite the surge of interest in the neural basis of effort-guided decision-making and the prevalence of disorders showing a diminished willingness to exert effort (e.g., depression). One common assumption is that effort discounts reward in a similar way to delay. Here we challenge t

SUBMITTER: Klein-Flugge MC 

PROVIDER: S-EPMC4376637 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature