Anonymous ID: aeec72 March 13, 2021, 10:19 p.m. No.13201915   🗄️.is 🔗kun   >>1919

>>13201727

That's blood flow faggot, its directly proportional to brain activity, its not the physical volume.

 

Go learn how it works here: https://en.wikipedia.org/wiki/Single-photon_emission_computed_tomography