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Detecting the onset of the lateralized readiness potential: A comparison of available methods and procedures

Published online by Cambridge University Press:  01 May 2000

J. TOBY MORDKOFF  and
PETER J. GIANAROS
J. TOBY MORDKOFF
Affiliation:
Department of Psychology, The Pennsylvania State University, University Park, USA
PETER J. GIANAROS
Affiliation:
Department of Psychology, The Pennsylvania State University, University Park, USA
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Abstract

Studies that measure the onset of the lateralized readiness potential (LRP) could well provide researchers with important new data concerning the information-processing locus of experimental effects of interest. However, detecting the onset of the LRP has proved difficult. The present study used computer simulations involving both human and artificial data, and both stimulus- and response-locked effects, to compare a wide variety of techniques for detecting and estimating differences in the onset latency of the LRP. Across the two sets of simulations, different techniques were found to be the most accurate and reliable for the analysis of stimulus- and response-locked data. On the basis of these results, it is recommended that regression-based methods be used to analyze most LRP data.

Keywords

Lateralized readiness potentialOnset latency measurementRegressionComputer simulations
Type
Research Article
Information
Psychophysiology , Volume 37 , Issue 3 , May 2000 , pp. 347 - 360
Copyright
© 2000 Society for Psychophysiological Research

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