# PGO

> English word · Noun

## Definitions
1. A spike of electrical activity in the brain that moves from pons to geniculate nucleus to occipital lobe at the onset of REM sleep.

## Etymology
Short for ponto-geniculo-occipital wave.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/pgo