One category depends upon external triggers in order to experience the localized sensation and its associated feelings, which typically originates in the head, often reaching down the neck and sometimes the upper back. The other category can intentionally augment the sensation and feelings through attentional control, without dependence upon external stimuli, or 'triggers', in a manner compared by some subjects to their experience of meditation.
Among the category of intentional ASMR videos that simulate the provision of personal attention is a subcategory of those specifically depicting the "ASMRtist" providing clinical or medical services, including routine general medical examinations. The creators of these videos make no claims to the reality of what is depicted, and the viewer is intended to be aware that they are watching and listening to a simulation, performed by an actor. Nonetheless, many subjects attribute therapeutic outcomes to these and other categories of intentional ASMR videos, and there are voluminous anecdotal reports of their effectiveness in inducing sleep for those susceptible to insomnia, and assuaging a range of symptoms including those associated with depression, anxiety, and panic attacks.
Okay, science may never explain the shoe thing. But scroll through these lists, and the array of triggers is largely consistent: classical music, haircuts, movie trailers, Bob Ross, more Bob Ross, lots of Bob Ross, the painter best known for his popular instructional videos. Forget the bucolic landscapes; these Ross fans are fixated on his calming baritone and the rustle of his brush on the canvas.
Replies to this post indicated that a significant number of other people had experienced the sensation which "okaywhatever" described - also in response to witnessing mundane events. The interchanges precipitated the formation of a number of web-based locations intended to facilitate further discussion and analysis of the phenomenon for which there were plentiful anecdotal accounts, yet no consensus-agreed name nor any scientific data or explanation.
But, as Wired UK reported, there's another side to the subculture: Kids as young as 5 years old are making their own ASMR videos — and making good money in the process. Wired spoke with 13-year-old Makenna Kelly, who makes ASMR videos for the 1.3 million subscribers to her "Life with MaK" channel. In some of her most viewed videos, Makenna eats instant ramen noodles and glides makeup brushes over a microphone.