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Updated: May 20, 2026

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Corticospinal Excitability Modulation During Action Observation
Published on: December 31, 2013
Mirror neurons encode the subjective value of an observed action
Vittorio Caggiano1, Leonardo Fogassi, Giacomo Rizzolatti
1Department of Cognitive Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, 72076 Tübingen, Germany.
Summary
Mirror neurons in the brain
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Primate Behavior
Background:
- Objects have value for both actors and observers.
- Observer-attributed object value influences behavioral responses.
- Mirror neurons in area F5 are implicated in understanding action goals.
Purpose of the Study:
- To investigate if F5 mirror neurons represent the value of grasped objects.
- To explore the role of mirror neurons in observer-based value representation.
Main Methods:
- Neuronal recordings in the premotor cortex (area F5) of monkeys.
- Observation of grasping actions with varying object values.
- Analysis of mirror neuron responses during action observation.
Main Results:
- Observation-related neuronal responses of F5 mirror neurons are modulated by object value.
- Mirror neuron activity reflects the value associated with the grasped object by the observer.
- This modulation occurs during the observation of grasping actions.
Conclusions:
- F5 mirror neurons are involved in representing the value of observed grasped objects.
- These neurons provide crucial information for shaping observer behavior during action perception.
- Mirror neurons contribute to understanding not just actions, but their associated value.
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