Ontology highlight
ABSTRACT:
SUBMITTER: Symmonds M
PROVIDER: S-EPMC3176914 | biostudies-literature | 2011 Oct
REPOSITORIES: biostudies-literature
Symmonds Mkael M Wright Nicholas D ND Bach Dominik R DR Dolan Raymond J RJ
NeuroImage 20110707 4
Risky choice entails a need to appraise all possible outcomes and integrate this information with individual risk preference. Risk is frequently quantified solely by statistical variance of outcomes, but here we provide evidence that individuals' choice behaviour is sensitive to both dispersion (variance) and asymmetry (skewness) of outcomes. Using a novel behavioural paradigm in humans, we independently manipulated these 'summary statistics' while scanning subjects with fMRI. We show that a beh ...[more]