Opposite effects of choice history and evidence history resolve a paradox of sequential choice bias.

ABSTRACT: Perceptual decisions are biased toward previous decisions. Earlier research suggests that this choice repetition bias is increased after previous decisions of high confidence, as inferred from response time measures (Urai, Braun, & Donner, 2017), but also when previous decisions were based on weak sensory evidence (Akaishi, Umeda, Nagase, & Sakai, 2014). As weak sensory evidence is typically associated with low confidence, these previous findings appear conflicting. To resolve this conflict, we set out to investigate the effect of decision confidence on choice repetition more directly by measuring explicit confidence ratings in a motion coherence discrimination task. Moreover, we explored how choice and evidence history jointly affect subsequent perceptual choices. We found that participan

SUBMITTER: Bosch E 

PROVIDER: S-EPMC7683864 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature