I love science but, when it comes to consciousness there essentially isn't any or rather, they're just getting started
It seems to actually loosen the glial scaffolding that holds axodendritic synapses in place, allowing some of the connections to separate and new connections to form
So science has observed the tiny little cells that make consciousness happen and it appears that the connections between them can be re-jiggered (neuroplasticity?) and certain plants can facilitate this. How is this information useful to me? Well it isn't really but scale it up a bit and it might follow (after another decade or two of research) that consciousness can be edited.
While I'm waiting for science to discover this, I'm more than happy to discuss tried and tested semantic systems for cognitive engineering, some dating back to the stone age and some of which have been scientifically proven to, yanno, loosen glial scaffolding and shit.
For some reason tho, these non-scientific approaches seem to throw a whole bunch of panties into turmoil round here so, yeah, fuck that noise.