Brain Wave Analysis
The human brain generates electrical activity across a range of frequencies. Each frequency band is associated with distinct cognitive and physiological states.
Frequency Bands
Our technology analyzes different brain wave frequencies to understand cognitive states:
| Band | Range | State |
|---|---|---|
| Delta | 0.5–4 Hz | Deep sleep, healing |
| Theta | 4–8 Hz | Creativity, deep meditation |
| Alpha | 8–12 Hz | Relaxed, meditative states |
| Beta | 12–30 Hz | Active thinking, focus |
| Gamma | 30–100 Hz | High-level cognition, binding |
EEG Signal Processing
Advanced signal processing techniques clean and interpret raw EEG data from the Prometeo Tiara:
- Notch and bandpass filtering to remove noise and artifact
- Real-time Fast Fourier Transform (FFT) for frequency decomposition
- RMS energy computation per band
- Longitudinal band-ratio tracking across sessions
- Signal quality indicators (SQI) for reliable acquisition