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Immediate and delayed memory tasks: a computerized behavioral measure of memory, attention, and impulsivity
Donald M Dougherty1, Dawn M Marsh, Charles W Mathias
1Neurobehavioral Research Laboratory and Clinic, Department of Psychiatry & Behavioral Sciences, University of Texas Health Science Center at Houston, 1300 Moursund Street, Houston, TX 77030, USA. donald.m.dougherty@uth.tmc.edu
Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc
|October 25, 2002
Summary
The Immediate and Delayed Memory Task (IMT/DMT) is a flexible software tool for studying attention and memory. Preliminary findings show it
Area of Science:
- Cognitive psychology
- Neuroscience
- Psychometric assessment
Background:
- Attention, memory, and impulsivity are critical cognitive functions.
- Existing tools may lack flexibility for diverse research needs.
- The Continuous Performance Test (CPT) is a common paradigm for assessing attention.
Purpose of the Study:
- Introduce the Immediate and Delayed Memory Task (IMT/DMT) software package.
- Highlight its utility as a flexible research tool for cognitive studies.
- Evaluate its sensitivity and reliability in preliminary investigations.
Main Methods:
- Developed a software package with two components: IMT and DMT.
- Utilized sequential digit stimuli with variable presentation rates.
- Manipulated task complexity for different age groups (children and adults).
Main Results:
- The IMT/DMT demonstrated sensitivity to group differences in performance.
- Established stable baselines of performance across participants.
- Showed sensitivity to drug-induced decrements in cognitive performance.
Conclusions:
- The IMT/DMT is a versatile and reliable tool for cognitive research.
- It effectively measures attention, memory, and impulsivity.
- The software shows promise for clinical and experimental applications.