Appendix A — Complete Brainwave Frequency Reference Table

The Five Primary Bands

| Band | Range | Sub-Bands | Dominant State | Associated Practices | |------|-------|-----------|----------------|---------------------| | Delta | 0.5–4 Hz | Slow (0.5–2 Hz) — deep sleep, Fast (2–4 Hz) — drowsy meditation | Dreamless sleep, physical restoration, healing, growth hormone release | Deep sleep (7–9 hrs), Yoga Nidra, body scan meditation | | Theta | 4–8 Hz | Low (4–6 Hz) — deep meditation, High (6–8 Hz) — creative visualization | Memory integration, creativity, imagery, REM sleep, hypnagogic state | Float tank, shamanic drumming, hypnagogic practice, breathwork | | Alpha | 8–13 Hz | Low (8–10 Hz) — relaxed calm, High (10–13 Hz) — alert calm | Relaxed attention, witness consciousness, stress recovery, flow foundation | Mindfulness, biofeedback, earthing, box breathing | | Beta | 13–40 Hz | Low (13–22 Hz) — active focus, High (22–40 Hz) — anxious vigilance | Active cognition, focused work, decision-making, external attention | Task engagement, exercise, analytical work | | Gamma | 40–100+ Hz | Low (40–60 Hz) — integration, High (60–100+ Hz) — insight | Cross-network integration, insight, compassion, non-dual awareness | 40 Hz light/sound, compassion meditation |

Notable Frequency Points

| Frequency | Name | Context | |-----------|------|---------| | 0.5 Hz | Slow delta resting | Deepest sleep, minimal consciousness | | 4 Hz | Theta onset | Hypnagogic state, memory integration | | 7.83 Hz | Schumann resonance | Earth's fundamental EM frequency | | 8 Hz | Alpha onset | Relaxed wakefulness, stress recovery | | 10 Hz | Peak alpha | Optimal calm focus, meditation | | 12 Hz | Alpha-beta transition | Alert relaxation | | 14–20 Hz | Sensorimotor rhythm (SMR) | Physical calm with focus, ADHD training | | 40 Hz | Gamma | MIT GENUS protocol, Lutz meditator study | | 55–80 Hz | High gamma | Deep insight, cognitive binding |

Solfeggio Frequencies

| Frequency | Claimed Effect | Evidence Status | |-----------|---------------|-----------------| | 396 Hz | Liberation from fear | No scientific validation | | 417 Hz | Facilitating change | No scientific validation | | 528 Hz | Transformation, DNA repair | Pseudoscientific — unsupported | | 639 Hz | Harmonious relationships | No scientific validation | | 741 Hz | Awakening intuition | No scientific validation | | 852 Hz | Return to spiritual order | No scientific validation | | 963 Hz | Connection to Source | No scientific validation |

Note on Solfeggio Frequencies

These frequencies are included for completeness. They serve as meditation aids and intention anchors but have no scientific validation for the claimed effects. Their value lies in the focused attention and ritual they inspire, not in the specific numbers.

Quick Comparison: Methods Across Bands

| Method | Best For | Band | Evidence | |--------|----------|------|----------| | Binaural Beats | Theta-low alpha | 4–10 Hz | Moderate | | Isochronic Tones | All bands, incl. gamma | Any | Moderate-Strong | | Photic Stimulation | Alpha (SSVEP), Gamma (GENUS) | 10 Hz, 40 Hz | Strong | | Breathwork | Alpha-theta | 4–13 Hz | Strong | | Meditation (long-term) | All bands, gamma coherence | All | Strong | | Float Tank | Theta | 4–8 Hz | Moderate | | Cold Exposure | Gamma spike | 40+ Hz | Emerging | | Exercise (post) | Alpha enhancement | 8–12 Hz | Strong | | Earthing | Grounding, Alpha | Indirect | Moderate |

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