Preparation for action: An ERP study about two tasks provoking variability in response speed
- 1 May 1996
- journal article
- clinical trial
- Published by Wiley in Psychophysiology
- Vol. 33 (3) , 262-272
- https://doi.org/10.1111/j.1469-8986.1996.tb00423.x
Abstract
This study focused on the covariation of response speed and event-related potentials during response preparation and on whether these variations can be brought under experimental control. Two S1-S2 choice response tasks with temporal uncertainty were conducted. In Experiment 1, S1 was 100% informative. Fast subjects showed larger P3s with S1 than slow subjects. The terminal CNV (tCNV) increased intraindividually with response speed. In Experiment 2, 50% of S1s were uninformative and the visual display was designed to attract more attention. Effects of information were found on P3 amplitude, on the topography of tCNV, and on the temporal distribution of response times. Interindividual differences disappeared in Experiment 2. The results suggest that group differences in Experiment 1 were due to different strategies of allocating visual attention. Interindividual variations of strategy showed a pattern of effects different from intraindividual variations of efficiency.Keywords
This publication has 26 references indexed in Scilit:
- A Clock Paradigm to Study the Relationship between Expectancy and Response ForcePerceptual and Motor Skills, 1993
- CNV, stretch reflex and reaction time correlates of preparation for movement direction and forceElectroencephalography and Clinical Neurophysiology, 1990
- Event-related brain potentials as indices of information extraction and response primingElectroencephalography and Clinical Neurophysiology, 1990
- Distribution of slow brain potentials related to motor preparation and stimulus anticipation in a time estimation taskElectroencephalography and Clinical Neurophysiology, 1988
- Anticipatory response-relevant muscle activity, CNV amplitude and simple reaction timeElectroencephalography and Clinical Neurophysiology, 1985
- Scalp distributions of event-related potentials: An ambiguity associated with analysis of variance modelsElectroencephalography and Clinical Neurophysiology/Evoked Potentials Section, 1985
- Late slow wave components of auditory evoked potentials: Their cognitive significance and interactionElectroencephalography and Clinical Neurophysiology, 1981
- Foreperiod and simple reaction time.Psychological Bulletin, 1981
- Slow brain potentials in the CNV-paradigmActa Psychologica, 1980
- Hirnpotential nderungen bei Willk rbewegungen und passiven Bewegungen des Menschen: Bereitschaftspotential und reafferente PotentialePflügers Archiv - European Journal of Physiology, 1965