Firstly, ASMR stands for Autonomous Sensory Meridian Response, which may not make things any clearer, so we’ll sum it up more simply by saying that it’s Autonomous sensory meridian response (ASMR) is a tingling sensation that usually begins on the scalp and moves down the back of the neck and upper spine. A pleasant form of paresthesia, it has been compared with auditory-tactile synesthesia and may overlap with frisson.