alt Hacker NewsWeird. A spike in blood pressure maybe? Can you do reproduce it consistently on purpose with an alarm or by holding something as you fall asleep that will make a loud noise when it falls?
Weird. A spike in blood pressure maybe? Can you do reproduce it consistently on purpose with an alarm or by holding something as you fall asleep that will make a loud noise when it falls?
Yes, I have never tried to reproduce it on purpose, but it happens consistently enough that I would be surprised if it does not happen at this point.
It happens simultaneously with the sound, so I would guess it is purely a weird form of synesthetic hallucination.