This could be checked giving a pinprick to someone in a coma while scanning their brain. (And I’m being generous and not assuming a definition of consciousness which excludes healthy people in deep dreamless sleep, because if perception entailed consciousness in that sense, alarm clocks would work much less reliably.)
This could be checked giving a pinprick to someone in a coma while scanning their brain. (And I’m being generous and not assuming a definition of consciousness which excludes healthy people in deep dreamless sleep, because if perception entailed consciousness in that sense, alarm clocks would work much less reliably.)