Key result
Active Chevreul pendulum engagement increases fundamental frequency by ~20% versus sham, suggesting focused attention.
Why the study?
Autonomic and acoustic correlates associated with the Chevreul pendulum illusion remain underexplored.
Does the Chevreul pendulum task alter video-derived pulse-to-pulse interval variability and acoustic parameters compared to sham conditions in a healthy adult?
Population
A single participant across 5 experimental sessions
Comparison
Active pendulum exposure vs baseline resting state and sham conditions
Design
Multi-modal pilot study with sham control
Authors
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Hypothesis-generating for autonomic correlates of ideomotor phenomena; requires validation before research or clinical use.
Does the Chevreul pendulum task alter video-derived pulse-to-pulse interval variability and acoustic parameters compared to sham conditions in a healthy adult?
Absolute Event Rate: 19.8% vs 6.8%
This pilot study provides proof-of-concept that the Chevreul pendulum task may elicit measurable reductions in video-derived PPI variability and increases in fundamental frequency, suggesting a state of focused attention and motor preparation.
AMRO ALBARODY (2026) studied Chevreul pendulum illusion (n=1). Active Chevreul pendulum task vs. Sham condition (pendulum held stationary) was evaluated on Fundamental frequency (F0) increase from baseline. Active engagement in the Chevreul pendulum task reduced video-derived RMSSD by 11.7% and increased fundamental frequency by 19.8% (vs 6.8% in sham), suggesting focused attention.
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