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Basic response time tools for studying general processing capacity in attention, perception, and cognition.

M J Wenger1, J T Townsend

  • 1Department of Psychology, University of Notre Dame, IN 46556, USA. Michael.J.Wenger.4@nd.edu

The Journal of General Psychology
|March 1, 2000
PubMed
Summary
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This study clarifies the construct of capacity in cognitive science. Researchers used response time distributions to measure cognitive process capacity and test hypotheses.

Area of Science:

  • Cognitive Psychology
  • Psychophysics

Background:

  • Capacity is a key construct in attention, perception, and cognition.
  • Existing definitions of capacity lack precision.

Purpose of the Study:

  • To review common meanings of cognitive capacity.
  • To propose a more precise definition and measurement of capacity.
  • To demonstrate the utility of capacity measures in cognitive research.

Main Methods:

  • Review of existing literature on cognitive capacity.
  • Analysis of response time distributions.
  • Derivation of process capacity measures from response time data.

Main Results:

  • A more precise treatment of the capacity construct was proposed.

Related Experiment Videos

  • Response time distributions were shown to yield measures of process capacity.
  • These measures were illustrated as tools for testing cognitive hypotheses.

    • Conclusions:

    • The proposed framework offers a rigorous approach to quantifying cognitive capacity.
    • Measures derived from response time distributions can effectively address key questions in cognitive science.