Combinations of low-level and high-level neural processes account for distinct patterns of context-dependent choice.

ABSTRACT: Context effects have been explained by either low-level neural adjustments or high-level cognitive processes but not their combination. It is currently unclear how these processes interact to shape individuals' responses to context. Here, we used a large cohort of human subjects in experiments involving choice between two or three gambles in order to study the dependence of context effects on neural adaptation and individuals' risk attitudes. Our experiments did not provide any evidence that neural adaptation on long timescales (~100 trials) contributes to context effects. Using post-hoc analyses we identified two groups of subjects with distinct patterns of responses to decoys, both of which depended on individuals' risk aversion. Subjects in the first group exhibited strong, consistent d

SUBMITTER: Spitmaan M 

PROVIDER: S-EPMC6812848 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature