Psychopathic traits linked to difficulty distinguishing smells
jhunewsletter.com
jhunewsletter.com
It shows up on fMRI so it is probably more real than half the things in DSM.
Link to info about MRI?
https://www.smithsonianmag.com/science-nature/the-neuroscien...
If you look you can find more recent citations of this correlation with smell. So it is not "debunked."
I have no idea where you come up with "debunked"; were you intending to reply to someone else?