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Related Experiment Videos

Hierarchical error processing: different errors, different systems.

Olav E Krigolson1, Clay B Holroyd

  • 1Department of Psychology, University of Victoria, Victoria, BC, Canada. olav@uvic.ca

Brain Research
|May 15, 2007
PubMed
Summary
This summary is machine-generated.

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High-level motor errors trigger an error-related negativity (ERN) in the brain, but low-level motor errors do not. This suggests the medial-frontal cortex is not involved in processing low-level motor control errors.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Motor Control

Background:

  • Motor control involves processing high-level goal errors (frontal system, anterior cingulate cortex) and low-level command errors (posterior system, posterior parietal cortex).
  • Previous research showed high-level errors elicit an error-related negativity (ERN), an event-related potential (ERP) sensitive to error commission.

Purpose of the Study:

  • To investigate whether low-level motor errors elicit an ERN.
  • To identify other event-related potential (ERP) components associated with low-level motor errors and online motor control.

Main Methods:

  • Participants performed a computer aiming task using a joystick.
  • Target perturbations were introduced, creating correctable and uncorrectable errors.
  • Event-related brain potentials (ERPs) were recorded.

Related Experiment Videos

Main Results:

  • Uncorrectable errors elicited an error-related negativity (ERN), consistent with prior findings.
  • Target perturbations, whether correctable or uncorrectable, did not elicit an ERN.
  • These perturbations evoked N100 and P300 ERP components, linked to visual processing and motor control.

Conclusions:

  • Medial-frontal cortex appears insensitive to low-level motor errors.
  • The P300 component may reflect stimulus-response optimization influenced by locus coeruleus activity in posterior cortex.