The most popular source of stimuli reported by subjects to be effective in triggering ASMR is video. Videos reported being effective in triggering ASMR fall into two categories, identified and named by the community as 'Intentional' and 'Unintentional'. Intentional media is created by those known within the community as 'ASMRtists' with the purpose of triggering ASMR in viewers and listeners. Unintentional media is that made for other purposes, often before attention was drawn to the phenomenon in 2007, but which some subjects discover to be effective in triggering ASMR. One early unintentional example is the Art Bears song 'The Bath of Stars.' Another example of unintentional media several journalists have noted is of famed painter Bob Ross. In episodes of his popular television series The Joy of Painting both broadcast and on YouTube, his soft, gentle speaking mannerisms and the sound of him painting and his tools trigger the effect on many of his viewers.[30][31] The work of stop-motion filmmaker PES is also often noted.[32]
I never realized this sensation had a name, but have been experiencing it from childhood. While studying about kundalini rising, I read the analogy of the thousand petal lotus blossoming on the crown of the head. I thought, ah, I know what that feels like! Sometimes reading letters from friends triggered it. Getting “picked” during a game of 7 Up triggered it. Having someone do the trick of pulling imaginary string from my palm triggered it.

Allen verified in a 2016 interview that she purposely selected these terms because they were more objective, comfortable, and clinical than alternative terms for the sensation.[10] Allen explained she selected the word meridian to replace the word orgasm due to its meaning of point or period of greatest prosperity.[clarification needed][citation needed]