Neurotech Daily 7. The Future of In-Ear EEG with NextSense | Jonathan Berent (JB)
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Aug 6, 2023 Jonathan Berent, founder and CEO of NextSense and former Google X project lead, develops clinical-grade in-ear EEG and stimulation for epilepsy, sleep, and mood. He discusses sleep research and self-experimentation, long-term in-ear monitoring and hardware design, auricular vagus stimulation and a postpartum depression pilot, and the vision of closed-loop earbuds for attention and personalized brain therapies.
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From Google Ads To Ear EEG Startup
- Jonathan Berent pivoted from Google business roles into neurotech after self-study and meeting sleep researchers at Google X.
- He joined an Area 120 team, pitched to X, and spun out technology that became NextSense.
How Polyphasic Sleep Worked For JB
- Jonathan describes self-experimentation with polyphasic sleep combined with intermittent fasting and the Wim Hof method.
- He would cold-plunge at 1:30 AM, stay awake hours, then take short naps, and adjusted metabolism and temperature to sustain the schedule.
What EEG Reveals About Sleep Stages
- EEG shows macro patterns and wavebands (delta, theta, alpha, beta, gamma) used to score 30-second epochs of sleep.
- Specific waveforms like K-complexes and sleep spindles distinguish N1 vs N2 and require experienced scoring or algorithms.
