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Related Experiment Videos

ERP correlates of error processing in spatial S-R compatibility tasks.

H Leuthold1, W Sommer

  • 1Humboldt-University at Berlin, Biological Psychology/Psychophysiology, Germany. leuthold@rz.hu-berlin.de

Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
|April 22, 1999
PubMed
Summary

Error negativity (NE) in brain potentials is linked to motor processes during response execution. A subsequent positive component (PE) may reflect error recognition and context updating.

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Area of Science:

  • Cognitive Neuroscience
  • Psychophysiology
  • Human Factors

Background:

  • Event-related brain potentials (ERPs) reveal neural activity associated with cognitive processes.
  • Error negativity (NE) and post-error positivity (PE) are ERP components observed following errors in reaction time (RT) tasks.

Purpose of the Study:

  • To investigate the timing of NE within information processing stages.
  • To determine if error trials elicit two successive P300 components.
  • To explore the neural correlates of error detection and processing.

Main Methods:

  • Manipulation of perception and response stages in visual and auditory spatial stimulus-response (S-R) compatibility tasks.
  • Analysis of event-related brain potentials (ERPs) during error commission.

Related Experiment Videos

  • Comparison of ERP components in error versus correct trials.

    • Main Results:

    • Error negativity (NE) is closely associated with motoric processes, occurring when information about the incorrect response is available.
    • The latency of the post-error positivity (PE) is influenced by both perceptual and response-related processing.
    • The scalp topography of PE is similar to the P300 in correct trials.

    Conclusions:

    • NE is elicited during the motor execution phase of an incorrect response.
    • An additional error-related P300 component is likely elicited by error events, potentially reflecting error recognition and context updating.