Delta (0.1-4Hz)

• Unconscious mind

• Naturally in this brainwave state from ages 0-2yrs

Theta (4-8Hz)

• Subconscious mind

• Naturally in this brainwave state from ages 2-6yrs

Alpha (9-13Hz)

• "In the zone" state of mind, focused

• Naturally in this brainwave state from ages 6-12yrs

Beta (14-30Hz)

• Normal waking state of mind

• Three groups

  • Low beta:'Beta one' - quiet, introverted concentration

  • Mid beta:'Beta two' - increases in energy, anxiety, & performance

  • High beta:'Beta three' - significant stress, paranoia, & high arousal

Gamma (30-100Hz)

• Cognitive state of mind

• High level of information processing