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Undetectable very-low frequency sound increases dancing at a live concert
Daniel J Cameron1, Dobromir Dotov2, Erica Flaten1
1Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, L8S 4L8, Canada.
Current Biology : CB
|November 8, 2022
Summary
Low frequency sound, even when undetectable, can increase dancing. This suggests non-auditory pathways like vestibular and tactile senses unconsciously influence our urge to move to music.
Area of Science:
- Auditory Neuroscience
- Human Movement Science
- Psychoacoustics
Background:
- Music's low frequencies (bass) are associated with dancing and movement timing.
- Low pitches enhance neural timing responses and sensorimotor communication.
- Non-auditory pathways (vibrotactile, vestibular) process low frequencies, influencing groove and rhythm perception.
Purpose of the Study:
- To investigate the causal effect of low-frequency sound on dancing in a real-world social setting.
- To determine if consciously undetectable low frequencies can modulate behavior.
Main Methods:
- Conducted a live electronic music concert experiment.
- Utilized very-low frequency (VLF) speakers, switching them on and off.
- Measured audience movement using motion-capture technology.
Main Results:
- Audience movement significantly increased when VLF speakers were active.
- VLFs were at or below auditory detection thresholds, suggesting unconscious processing.
- Results indicate a potential unconscious behavioral effect via non-auditory pathways.
Conclusions:
- Very-low frequency sound stimulation can causally increase dancing.
- This effect may operate through unconscious processing via vestibular and/or tactile senses.
- Findings highlight the role of non-auditory perception in music-induced movement.
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