“The strongest type of tingle…feels like sparkles or little fireworks going off,” she says. “The strongest one would give you the feeling of being exhausted, pleasantly tired, satisfied almost you want to say. Then there are much less strong tingles, and they feel just pleasant. Almost like sand is being poured down your spine. [Or] like when you get the funny elbow, when you hit it and it feels like it just goes off everywhere.”
These reports have precipitated comparison between ASMR and synesthesia – a condition characterised by the excitation of one sensory modality by stimuli that normally exclusively stimulates another, as when the hearing of a specific sound induces the visualization of a distinct color, a type of synesthesia called chromesthesia. Thereby, people with other types of synesthesia report for example 'seeing sounds' in the case of auditory-visual synesthesia, or 'tasting words' in the case of lexical-gustatory synesthesia.
“When a newborn is born, the sensation that is the most developed and they receive the most information through is touch, and the one that’s least developed is sight,” he says. Parents show infants love most of all through touch, he argues—coddling, stroking—and all of this helps explain why ASMR is, at its best, an in-person experience with echoes of childhood experiences.