Differentiating between integration and non-integration strategies in perceptual decision making.

ABSTRACT: Many tasks used to study decision-making encourage subjects to integrate evidence over time. Such tasks are useful to understand how the brain operates on multiple samples of information over prolonged timescales, but only if subjects actually integrate evidence to form their decisions. We explored the behavioral observations that corroborate evidence-integration in a number of task-designs. Several commonly accepted signs of integration were also predicted by non-integration strategies. Furthermore, an integration model could fit data generated by non-integration models. We identified the features of non-integration models that allowed them to mimic integration and used these insights to design a motion discrimination task that disentangled the models. In human subjects performing the tas

SUBMITTER: Stine GM 

PROVIDER: S-EPMC7217695 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature