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EXPERIMENT 3: EEG Brainwave Study at Active vs Dry Cenotes (Yucatan)

EXPERIMENT 3: CENOTE BRAINWAVE ENTRAINMENT TEST

OBJECTIVE: Test whether proximity to an acoustically active cenote (with flowing water) produces measurable brainwave changes compared to a dry/inactive control.

EQUIPMENT:

  • Portable wireless EEG (Emotiv EPOC X, ~$999, or
MUSE S, validated for field research)
  • Portable geophone (ground vibration at each site)
  • ELF sensor (EM field at each site)
  • Heart rate monitor (autonomic correlation)
Total budget: ~$5,000-8,000

DESIGN: Double-blind, randomized crossover

N = 30 subjects minimum (statistical power 0.8)
Conditions:
A: Seated 10m from active cenote, eyes closed, 20min
B: Seated 10m from dry limestone surface (control)
C: Seated 10m from inactive/dry cenote (geological
control — same structure, no water)
Each subject does all three conditions, randomized
order, with 30min washout between conditions.
Subjects and EEG analysts blinded to condition.

PREDICTED VALUES:

Active cenote: increased theta (4-8Hz) and alpha
(8-13Hz) power density by 15-40% compared to
control condition (based on Persinger EEG-Schumann
coherence data scaled by our amplification factor).
Topography: maximum at right parahippocampal gyrus
(matching Persinger's Schumann coherence location).
Dry cenote: intermediate or no effect (geological
structure without acoustic driver).

CONFIRMATION CRITERIA:

STRONG: Condition A > B by >15% theta/alpha power,
p < 0.01 (Bonferroni corrected), with concurrent
geophone showing ground vibration at matching freq.
MODERATE: Condition A > B, p < 0.05, without
concurrent geophone correlation.

REFUTATION CRITERIA:

No significant difference between ANY conditions,
OR Condition B (control) shows equal/greater effect.
Submitted by Experimental Design — Neuroscience + Archaeology June 06, 2026

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