Altogether now: Activating interdependent self-construal induces hypermotor resonance

Area of Science:

• Psychology
• Social Psychology
• Cognitive Neuroscience

Background:

• Nonconscious mimicry (NCM) is a common social behavior, but its underlying mechanisms are not fully understood.
• Motor resonance (MR) is a potential mechanism, suggesting that observing actions primes related motor representations.
• Interdependent self-construal (InterSC) has been shown to increase NCM, but its effect on MR is unclear.

Purpose of the Study:

• To investigate whether motor resonance (MR) mediates nonconscious mimicry (NCM).
• To examine if priming interdependent self-construal (InterSC) influences MR.
• To explore the relationship between self-construal, action observation, and motor resonance.

Main Methods:

• Participants performed a cued-response task involving squeezing a rubber ball.
• Electromyography (EMG) measured motor resonance (MR) during action observation.
• Participants were primed with either interdependent self-construal (InterSC) or independent self-construal (IndSC) via word stimuli.

Main Results:

• Incongruent observed actions (compared to word color) slowed reaction time and modulated EMG activity.
• These effects were significantly greater when participants were primed with InterSC compared to IndSC.
• The observed effects on MR persisted even when participants did not consciously notice differences in the observed actions.

Conclusions:

• Motor resonance (MR) appears to be a key mechanism underlying nonconscious mimicry (NCM).
• Interdependent self-construal (InterSC) primes enhance MR, making individuals more sensitive to observed actions.
• This heightened sensitivity occurs even when the observed actions are not consciously perceived.