Human Movement Responses to the Rorschach and Mirroring Activity: An fMRI Study

Area of Science:

• Neuroscience
• Psychology

Background:

• The Rorschach human movement (M) response is hypothesized to involve embodied simulation via the mirror neuron system (MNS).
• Previous evidence is limited to electroencephalogram and transcranial magnetic stimulation studies.

Purpose of the Study:

• To investigate the association between Rorschach M responses and MNS activity using functional magnetic resonance imaging (fMRI).

Main Methods:

• Administered the Rorschach test to 26 healthy adults during fMRI.
• Analyzed brain activity in MNS-related regions of interest, identified via Neurosynth.
• Compared brain activity during M responses versus non-M responses.

Main Results:

• Univariate region of interest analyses demonstrated significantly greater activity in MNS-related brain areas during M responses compared to non-M responses.
• This finding supports the hypothesis linking M responses to embodied simulation and MNS activity.

Conclusions:

• The study provides fMRI evidence supporting the role of the mirror neuron system in generating Rorschach human movement responses.
• Results align with the traditional interpretation of the Rorschach M code as reflecting embodied simulation.