About Brain Gauge Training
This is the ongoing training that lives alongside the Brain Gauge — the missing layer between owning the device and actually using it.
The Brain Gauge, built by Cortical Metrics, gives you eight metrics. The instructions teach you how to take the readings. Nobody teaches you what the readings mean for your day, your week, your protocol — what to try, what to leave alone, what a shift in those numbers actually signals. This subscription is that missing layer. Daily-ish writing, an open question-and-answer with me, and an archive that gets denser every week.
Who you’re working with
I’m Erskine Maytorena — author and independent researcher. I’ve spent years working with the Brain Gauge in my own practice, writing about cortical precision, neural timing, and how different interventions (sauna, EWOT, plyometrics, breathwork, tango, sleep, fasting, supplementation) compose into a coherent training stack. My preprints on these topics are on Zenodo, and this publication is where the applied, ongoing work lives. To be clear about the relationship: I’m not affiliated with Cortical Metrics. They build and validate the instrument; I write about what to do with it.
Sofia Tikhovidova is the office lead, running onboarding and testing for the practice. If you’ve just started with a Brain Gauge, she’s likely the first person you’ll hear from — she handles the early setup so the first month doesn’t feel like figuring it out alone. She trains on the device herself, which is part of why she does this work.
What you get
Writing. Roughly daily. Articles on specific metrics, specific interventions, and the cortical precision principles underneath them. Some pieces are short observations from a session. Some are longer arguments that take a question apart from multiple angles.
Q&A. This is the part that compounds. You ask me a question — about your readings, about a protocol you’re considering, about something you read in a paper — and I answer in chat, typically within 48 hours. Often that answer becomes its own article a day or two later, anonymized, because your question pointed at something other people are wondering about too.
The archive. Everything I’ve written, searchable. Cortical precision doesn’t have a textbook yet. This is closer to one than anything else out there.
The Tiers
If you bought your Brain Gauge — or started a rent-to-own — through braingaugetraining.com with code BGT2026, your training here is already included free for the first 12 months. You don’t need to subscribe separately; you’ll be set up directly. (Buyers: the included year applies to orders placed with the code through June 30, 2026. Rent-to-own customers receive the Practitioner tier free for their first 12 months.) The tiers below are for direct subscribers and for anyone continuing past their first year.
Free. Periodic public posts and announcements. If you’re not sure whether the work is for you, start here.
Subscriber — $25/month or $250/year. Starts with a welcome package — your copy of Brain Gauge Quickstart: Your First 90 Days, hardware and software walkthrough videos, and a primer on all eight metrics — then full access to all writing, the archive, and chat. If you own a Brain Gauge and you want to actually use it, this is the tier.
Practitioner — $100/month or $1,000/year. Subscriber, plus a practitioner-only chat space, priority on clinical Q&A, and a monthly digest oriented toward clinical and professional integration. For clinicians, coaches, and operators using the Brain Gauge with clients who need a place to discuss application that doesn’t exist anywhere else.
What This Isn’t
It isn’t medical advice. I’m an author and a researcher, not a clinician, and the Brain Gauge is a measurement instrument, not a treatment device. Everything here is observation, theory, and personal practice. The interpretations I offer of metrics, interventions, and protocols are mine — what I’ve tried, what I’ve watched, what the research suggests. The decisions are yours.
It isn’t a course with a finish line. There’s no curriculum, no graduation, no certificate. The training is ongoing because the practice is ongoing — the device gives you a number tomorrow and the day after, and the question is always what do I do with this one. The subscription is the place that question keeps getting answered.
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