depersonalization human 4 1,4 butanediol 2 Article 2 Brain 2 Case-Control Studies 2 Connectome 2 Consciousness 2 Deliriants 2 Depersonalization 2 Dissociatives 2 Dreams 2 Emotions 2 Empathy 2 Hallucinogens 2 Heart Rate 2 Heartbeat Detection Task 2 Humans 2 Interoception 2 Latent semantic analysis 2 Male 2 Phenomenology 2 Psychedelics 2 REM sleep 2 Young Adult 2 adult 2 anticholinergic effect 2 article 2 atropine 2 body mass 2