Autonomous sensory meridian response (ASMR) is a term used for an experience characterised by a static-like or tingling sensation on the skin that typically begins on the scalp and moves down the back of the neck and upper spine. It has been compared with auditory-tactile synesthesia. ASMR signifies the subjective experience of "low-grade euphoria" characterised by "a combination of positive feelings and a distinct static-like tingling sensation on the skin". It is most commonly triggered by specific acoustic or visual stimuli, and less commonly by intentional attention control.