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Updated: May 10, 2026
10:38
A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
Published on: July 16, 2015
Attentional distraction, μ-suppression and empathic perspective-taking.
C Chad Woodruff1, Shelley Klein
1Department of Psychology, Northern Arizona University, Flagstaff, AZ 86011, USA. chad.woodruff@nau.edu
Experimental Brain Research
|June 29, 2013
Summary
Social mirroring, measured by mu-suppression (μ-suppression), requires focused attention to engage the mirror neuron system. Simply observing actions without attention, like during word generation tasks, eliminates this neural response.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Social Cognition
Background:
- Social mirroring theory suggests automatic simulation of observed actions via the motor system.
- Automaticity implies mirror system engagement regardless of attention when observing actions.
- Previous research has not fully tested the role of attention in mirror system activation.
Purpose of the Study:
- To investigate if attentional distraction affects mu-suppression (μ-suppression), an EEG measure of mirror neuron activity.
- To determine if observing actions without focused attention is sufficient to activate the mirror system.
- To replicate the correlation between μ-suppression and empathic perspective-taking.
Main Methods:
- Participants watched videos of hand actions under three conditions: no distraction, mental imagery distraction, and word generation distraction.
- Electroencephalography (EEG) was used to measure μ-suppression.
- Self-report measures assessed empathic perspective-taking.
Main Results:
- Typical μ-suppression was observed in the no distraction condition.
- Word generation distraction significantly reduced or eliminated μ-suppression.
- A negative correlation between μ-suppression and empathic perspective-taking was replicated.
Conclusions:
- Focused attention is necessary for μ-suppression during action observation; passive viewing is insufficient.
- The findings challenge the notion of fully automatic mirror system engagement.
- A theoretical model is proposed to explain the inverse relationship between mirror activity and perspective-taking.
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