Modeling Perceptual Decision Processes

Abstract

In this final report for my AFOSR grant, I discuss significant findings over the 3 year grant period, including: a systematic examination of diffusion model fitting packages along with an evaluation of individual differences and the effects of the number of observations on parameter recovery; practice effects and the ability of the model to recover parameter values with low numbers of observations; recovery of individual differences using simulated data; bias and accuracy of parameter recovery. I discuss results from a study of the effects of sleep deprivation on memory, a study on driving simulation, and another study on the effects of video gaming on decision making. I also discuss new models for the go/no-go task and for multichoice decisions and confidence judgments, and results from our continued investigation of integrating models of perceptual processing with decision models and another on examining psychometric functions with the diffusion model.

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Document Details

Document Type
Technical Report
Publication Date
Sep 17, 2014
Accession Number
ADA609771

Entities

People

  • Roger Ratcliff

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Air Force Research Laboratories
  • Boundaries
  • Deprivation
  • Diffusion
  • Diffusion Coefficient
  • Environment
  • Information Processing
  • Judgment
  • Observation
  • Psychology
  • Recovery
  • Signal Detection
  • Simulators
  • Sleep Deprivation
  • Video Games

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Circadian Sleep-Wake Regulation and Chronobiology
  • Regression Analysis.