Related Experiment Video
Updated: Aug 11, 2026
08:45
A Dual Task Procedure Combined with Rapid Serial Visual Presentation to Test Attentional Blink for Nontargets
Published on: December 5, 2014
Basic response time tools for studying general processing capacity in attention, perception, and cognition
1Department of Psychology, University of Notre Dame, IN 46556, USA. Michael.J.Wenger.4@nd.edu
The Journal of General Psychology
|March 1, 2000
Summary
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.
- 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.
Related Concept Videos
01:20Parallel Processing
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
01:24Working Memory
Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.