Brainwave bands, briefly
Brain activity measured at the scalp (EEG) shows rhythms that shift with your state. The thalamus, a relay deep in the brain, helps set many of these rhythms. Established
- Beta (about 13-30 Hz): alert, busy, problem-solving.
- Alpha (about 8-12 Hz): awake and relaxed, often with eyes closed.
- Theta (about 4-7 Hz): drowsy, dreamy, the edge of sleep.
- Delta (below 4 Hz): deep sleep.
Focus 10: body asleep, mind awake
Gateway's first named state. The body is as relaxed as it would be falling asleep, but attention stays clear. In EEG terms this sits somewhere around the alpha-theta border. The state is familiar from hypnosis and meditation research: deep physical relaxation with preserved awareness. Established Gateway's claim that its tones reliably produce this state is not established. Emerging
Focus 12: expanded awareness
In Focus 12 attention widens: "the room, the building, the sky", then back to the centre. Gateway does most of its techniques here. In your sessions this is where patterning, colour breathing and problem-solving questions happen, from month 2 on.
What happens in the brain during this kind of spacious, open attention is an active research area. Open-monitoring meditation studies point to changes in the networks for attention and self-referential thought. Emerging
Focus 15 and 21
The report describes these as timeless and advanced states that most trainees never reach. We don't use them, and we don't make claims about them. Speculative
Coming back
Every session except sleep ends with a return: the tone rises back toward 10 Hz, the voice counts you up, and you move your hands and feet before opening your eyes. That's deliberate. You should feel alert enough to carry on with your day.
Sources
- McDonnell, W. M. (1983). Analysis and Assessment of Gateway Process. US Army INSCOM. CIA FOIA reading room
- Landry, M., Lifshitz, M., & Raz, A. (2017). Brain correlates of hypnosis: A systematic review and meta-analytic exploration. Neuroscience & Biobehavioral Reviews, 81, 75-98. doi:10.1016/j.neubiorev.2017.02.020
- Lomas, T., Ivtzan, I., & Fu, C. H. Y. (2015). A systematic review of the neurophysiology of mindfulness on EEG oscillations. Neuroscience & Biobehavioral Reviews, 57, 401-410. doi:10.1016/j.neubiorev.2015.09.018

