There are plenty of things that are less strong effects that can still trick your mind to believe something that you know is not really true. Such as when you do the fake arm test. https://pmc.ncbi.nlm.nih.gov/articles/PMC1395356/ It feels real for the brain, even if you know that it's not your arm. I did a test and my brain believed that it's my arm, even if I of course, logically know my arm is not a rubber arm.
replyThere is a similar effect related to Delirium Tremens, caused by extreme alcohol withdrawal. Apparently people across cultures report seeing the same "Hat Man" in their peripheral vision, who disappears when looked at directly, but everyone seems to report the same ominous feeling about him. Also there are reports of people seeing a bunch of spiders everywhere, when going through alcohol withdrawal.
replyThe mind and body are always in sync somewhat, even when under great stress like that. Anticholinergics at high doses act almost mechanistically on the PNS to create the parasthesia/formication on/under one’s skin. I think the visual perception of the insects is in that case secondary to the tactile sensation.
replyThat is quite characteristically distinct to the “endogenous” appearance of other figures when using serotonergics, that almost certainly arise from intra CNS activity
Those are also common hallucinations reported for recreational Benadryl dosages.
replyAnd extreme sleep deprivation.
replyI wonder if people who have never seen or heard of hats will talk about a Hat Man.
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