Evidence Accumulation Models

Models that explain decision making through the accumulation of evidence over time.

How does the framework work
Used to study decision-making processes in psychology and neuroscience.
DOI
10.1177/0956797618799365

Models that use this framework

Dynamic visbility time and evidence model (dynaViTE)

Frameworks: Evidence Accumulation Models
Disciplines: Cognitive Psychology, Experimental Psychology, Mathematical psychology
Programming language: R
The model accounts for the relationship between task difficulty, choice, response time, and confidence judgments in perceptual decision tasks. It assumes a DDM based decision process with post-decisional accumulation time. In addition, it includes a second accumulation process (the visibility process) that accrues evidence about the task difficulty, which evolves in parallel and independent of the decision process. Confidence is based on the final amount of evidence from the decision process, the visibility process, and the total accumulation time.