Journal article
The Locus of Dual-Task Interference: Psychological Refractory Effects on Movement-Related Brain Potentials
Journal of experimental psychology. Human perception and performance, Vol.19(6), pp.1292-1312
12/1993
DOI: 10.1037/0096-1523.19.6.1292
PMID: 8294893
Abstract
We sought to measure separately the motor potentials for each of 2 concurrent tasks and to use these measurements to identify the locus of dual-task interference. Lateralized readiness potentials (LRPs) were measured in the psychological refractory period paradigm, in which a separate response is required to each of 2 successive signals. As the interval between the signals decreased, the 2 reaction time (RT) tasks increasingly overlapped and the 2nd RT was prolonged. The LRP for the 2nd task was also delayed but maintained a constant temporal relation with the 2nd RT and sometimes preceded the 1st-task RT. The results indicate that (a) independent measures of the LRP can be obtained for each of 2 concurrent tasks, (b) slowing of the 2nd task was caused by a delay in processes that precede LRP onset, and (c) the 1st task may cease to interfere with the 2nd considerably before producing an overt response.
Details
- Title: Subtitle
- The Locus of Dual-Task Interference: Psychological Refractory Effects on Movement-Related Brain Potentials
- Creators
- Allen Osman - Department of Psychology, University of California, San DiegoCathleen M Moore - Department of Psychology, University of California, San Diego
- Resource Type
- Journal article
- Publication Details
- Journal of experimental psychology. Human perception and performance, Vol.19(6), pp.1292-1312
- DOI
- 10.1037/0096-1523.19.6.1292
- PMID
- 8294893
- NLM abbreviation
- J Exp Psychol Hum Percept Perform
- ISSN
- 0096-1523
- eISSN
- 1939-1277
- Publisher
- American Psychological Association
- Language
- English
- Date published
- 12/1993
- Academic Unit
- Psychological and Brain Sciences; Injury Prevention Research Center
- Record Identifier
- 9984213429702771
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