How ancient structures in Malta and Ireland appear to have been tuned to 111 Hz – and what neuroimaging studies suggest about the brain's response to this frequency.
Archaeoacoustics: The Hypogeum of Hal Saflieni
The Hypogeum of Hal Saflieni (Malta, ~3600–2500 BCE) is a three-story underground temple carved entirely from limestone. Researchers from the Princeton Engineering Anomalies Research (PEAR) lab measured the acoustic properties in 2008: The central chamber resonates at 110–111 Hz with unusual intensity.
Similar findings in Neolithic Irish passage tombs (Newgrange, Camster Round): chambers between 95–112 Hz. Archaeoacousticians conclude that these properties were deliberately constructed – as acoustic amplifiers for ritual chanting.
The Neurological Response to 111 Hz
Dr. Ian Cook (UCLA) examined the brain's response to 111 Hz tones in a small fMRI study. Finding: Deactivation of the prefrontal cortex – the area responsible for rational thinking and self-control – combined with increased activity in limbic structures.
This effect resembles what is measured in deep meditation or trance states: Critical-analytical thinking recedes, emotional and intuitive processing dominates. Simultaneously, endorphin release is facilitated – the physiological mechanism behind the calming effect of ritual sounds.
Modern Applications: CES and Therapy
Cranial Electrostimulation (CES) at 0.5–100 Hz is FDA-approved for certain conditions related to anxiety, mood, and sleep quality. Some CES protocols specifically use 100–111 Hz. Therapeutic sound work with singing bowls and didgeridoo naturally operates in these frequency ranges.
111 Hz is a fascinating link between prehistoric sound culture and modern neurology – both point in the same direction: This frequency induces altered, relaxed states of consciousness with measurable biological correlates.
Dieser Artikel dient ausschließlich der Information und Bildung. Er ersetzt keine medizinische Diagnose oder Behandlung. Es werden keine Heilversprechen gegeben. Anwendung auf eigenes Risiko. Medical Disclaimer lesen →