results of f-MRI and positron emiss. during human REM sleep.

Rapid eye movement-related brain activation in
human sleep: a functional magnetic resonance
imaging study.

The present study successfully combines standard polysomnographic and multislice fMRI recordings and demonstrates that REMs are associated with an activation of geniculate bodies and the secondary visual cortex. Our findings substantiate that PGO activity, as described in a variety of animal species and possibly pivotal for brain plasticity changes, is also present in human REM sleep.

https://www.univie.ac.at/mcogneu/lit/wehrle.pdf

Interesting-looking article :happy: . I wont read it right now though since it’s too long, but when I have time to spart I’ll have a peek at it :content: .