I’ve been working on this
olfactory system is primary and can bypass everything
The other senses work too But they go through the relay system of the thalamus.
They both tied into the amygdala is often given first dibs.
(feedback loop seems to be why prolonged eye contact sometimes burns in autistic people – more indication i may be on asd)
so for me it would be a whiff of a good idea that makes me want to find the source.