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Updated: Jul 11, 2026
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Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
Published on: August 1, 2018
Watching others' actions: mirror representations in the parietal cortex.
1Department of Neurobiology Hebrew Univeristy, Jerusalem, Israel. liorsh@pob.huji.ac.il
Summary
The mirror system allows primates to understand actions by simulating them internally. Observing actions can interfere with our own motor control, suggesting shared neural pathways.
Area of Science:
- Neuroscience
- Cognitive Science
- Motor Control
Background:
- The mirror-system hypothesis originated from observing motor cortex neuron activity in monkeys during action execution and observation.
- This hypothesis posits that action understanding involves internal motor representations (simulations).
- Emerging evidence indicates a similar mirror system exists in humans.
Purpose of the Study:
- To review the congruence between motor and visual aspects of action perception.
- To explore the neural mechanisms underlying action observation and execution.
- To discuss a framework for internal action representation.
Main Methods:
- Review of behavioral and neuroimaging studies in humans.
- Analysis of sensory-to-motor remapping properties in the parietal cortex.
Main Results:
- Observing actions can interfere with an individual's own motor execution, supporting the mirror system concept.
- Parietal cortex activity during action observation is linked to sensory-to-motor remapping.
- This remapping is crucial for precise motor control.
Conclusions:
- The human mirror system supports action perception and understanding through internal simulation.
- The parietal cortex plays a key role via sensory-to-motor remapping.
- This system integrates visual action information with motor representations.
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