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Abstract

Geometric Sound (GS) is sonic holograms of mathematically defined 3D shapes, integrating spatial sound technology with mathematical principles. The effects of GS were investigated on human physiology, psychology, and Faraday wave pattern morphology with novel results on all analysis paradigms.

Description

This study pioneers Geometric Sound (GS) as a subfield of spatial sound by projecting sonic holograms of mathematically defined 3D shapes and movement trajectories based on mathematical formulas. The effects of GS on human physiology and psychology were investigated through EEG, heart rate, blood pressure, and a combination of questionnaires monitoring 50 healthy participants in two separate experiments. The impact of GS on Faraday wave (Cymatics) pattern morphology was further investigated. All sound stimuli played the exact same sound sample and frequency combination (272.2 Hz & 544.4 Hz) in an identical loop, duration, loudness & measured under identical conditions. Sound stimuli were projected in the GS shapes: Pyramid, Cube, and Sphere. All examined shapes exhibited varying significant effects on Autonomic Nervous System (ANS) markers, brainwave power amplitude, topology, and connectivity patterns, in comparison to the control (traditional stereo), and baseline (no sound) conditions.

Brain activity in the Alpha band exhibited the most significant results, additional noteworthy results were observed across analysis paradigms in all frequency bands. GS was found to significantly regulate ANS biomarkers and enhance relaxation and general well-being. Changes in EEG and ANS measurements were primarily shape-dependent, and to a lesser extent sex-dependent. Pyramid GS yielded the most significant results in most analysis paradigms, possibly due to its exclusive incorporation of the Phi ratio. Faraday wave analysis demonstrated a similar trend to EEG and ANS analysis, where each GS shape, hence mathematical information, produced a distinct response. Faraday wave analysis further showed an unprecedented result demonstrating that sound’s topographic properties influence its pattern morphology regardless of the excitation frequency or the medium’s boundary condition. Results suggest regulation of human physiology, psychology and matter by means of sonic stimuli of a geometric and mathematical nature.

The study originated from an artistic-scientific project titled The Sound Is The Scenery (TSITS) which investigated the connection between sound, geometry and mathematics with healing and well-being by immersing people in geometric structures of spatial sound and light. In order to spatially project the sound in 3D GS holograms, a unique code which sends the geometric and mathematical coordinates was created.

ISA Entrant: Rona Geffen

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