[choosername]

Brain activity is not a precise meassure, not in terms of fMRI, which just shows an increased blood flow.

The hypothesis is obvious on the other hand. However, individuals that would submit to a test on psychedelics is likely the type that gets easily exited just for the sake of it and doesn't. Or brain activity doesn't corralate with actually functioning correctly. I' expect a failing subsystem would respond with increased activity, simple feedback. Eventually some controle unit would shut it off or the subsystem would keep working but a bit unusual, despite increased blood flow.

[choosername]

did the easily exited type bit strike a feeling or why the downvote? I mean, it can't be given to an unsuspecting control group. That would probably feel moderately icky and the desire to rest.