Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Response complexity and precue interval effects on the lateralized readiness potential

S A Hackley1, J Miller

  • 1Department of Psychology, University of Missouri-Columbia 65211, USA.

Psychophysiology
|May 1, 1995
PubMed
Summary

The lateralized readiness potential (LRP) is larger for complex movements. Hand-specific preparation begins earlier with longer delays but is linked to stimuli, with faster reactions showing greater nonlateralized negativity.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The importance of arginine 102 for the substrate specificity of Escherichia coli malate dehydrogenase.

Biochemical and biophysical research communications·1992
Same author

High-efficiency gene transfer into cardiac myocytes.

Nucleic acids research·1992
Same author

Brain-derived neurotrophic factor augments rotational behavior and nigrostriatal dopamine turnover in vivo.

Proceedings of the National Academy of Sciences of the United States of America·1992
Same author

Differentiated practice: a three-dimensional model.

Nursing management·1992
Same author

Use of unlicensed assistive personnel in acute care settings.

The Journal of nursing administration·1992
Same author

Effect of a human immunodeficiency virus protease inhibitor on human monocyte function.

AIDS research and human retroviruses·1992

Area of Science:

  • Cognitive Neuroscience
  • Electrophysiology
  • Human Motor Control

Background:

  • The lateralized readiness potential (LRP) is a key electrophysiological measure in cognitive neuroscience.
  • Previous research showed inconsistencies regarding LRP lateralization and task complexity.
  • Understanding LRP properties is crucial for cognitive function research.

Purpose of the Study:

  • To investigate fundamental properties of the lateralized readiness potential (LRP).
  • To resolve inconsistencies in the literature regarding LRP lateralization and task complexity.
  • To examine the temporal dynamics of response preparation using LRP.

Main Methods:

  • Two experiments were conducted to analyze the LRP.
  • Experiment 1 compared LRP preceding simple and complex finger movements.

Related Experiment Videos

  • Experiment 2 manipulated precue-stimulus foreperiods (0-1400 ms) and analyzed LRP latency and lateralization.

    • Main Results:

    • LRP lateralization was significantly larger preceding complex finger movements compared to simple ones.
    • Hand-specific motor preparation initiated earlier with longer precue-stimulus foreperiods.
    • Preparation remained temporally linked to both precue and reaction stimulus.
    • Faster reaction times correlated with a larger nonlateralized, response-locked negativity, not LRP degree.

    Conclusions:

    • The LRP exhibits response-specific lateralization that is modulated by movement complexity.
    • Motor preparation involves a dynamic interplay between precue information and reaction stimuli.
    • A nonlateralized negativity reflects faster response execution, independent of LRP lateralization.