An autonomous sensory meridian response (ASMR) is a tingling sensation and pleasant form of paresthesia, that usually begins on the scalp and moves down the back of the neck and upper spine. ASMR has been compared with synesthesia and may overlap with frisson. ASMR is a subjective experience of "low-grade euphoria" characterized by "a combination of positive feelings and a distinct static-like tingling sensation on the skin". It is most commonly triggered by specific auditory and visual stimuli, and less commonly by intentional attention control.