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Related Concept Videos

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Related Experiment Video

Updated: Jun 5, 2025

Corticospinal Excitability Modulation During Action Observation
12:33

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

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Negated actions are simulated within the primary motor cortex.

W Dupont1, C Papaxanthis1, L Lurquin1

  • 1INSERM UMR1093-CAPS, Université de Bourgogne, UFR des Sciences du Sport, F-21000, Dijon, France.

Neuroscience
|December 14, 2024
PubMed
Summary
This summary is machine-generated.

Negated action sentences initially activate the motor system, similar to affirmed actions. Differences in neural processing may occur beyond the primary motor cortex, impacting language comprehension.

Keywords:
Action languageEmbodied languageMotor simulationNegationTMS

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Area of Science:

  • Cognitive Neuroscience
  • Motor Control
  • Psycholinguistics

Background:

  • The representation of negated actions in the motor system remains debated.
  • It is unclear if negated action sentences initially simulate the action.

Purpose of the Study:

  • To investigate motor system activation for negated actions.
  • To explore corticospinal excitability (CSE) and inhibition (SICI) during sentence processing.

Main Methods:

  • Two experiments used transcranial magnetic stimulation to measure CSE and SICI.
  • Participants read affirmative and negative action/non-action sentences.
  • Measurements were taken at various latencies after verb presentation.

Main Results:

  • Action sentences (affirmative and negative) showed greater CSE than non-action sentences.
  • CSE was elevated for both affirmative and negative action sentences compared to rest.
  • SICI increased at longer latencies, irrespective of verb form, with no early inhibition for negated actions.

Conclusions:

  • Negated actions appear to be initially simulated in the motor system.
  • Early neural differences between affirmed and negated actions might originate outside the primary motor cortex.