Listening to a binaural recording through headphones simulates the binaural hearing by which people listen to live sounds. For the listener, this experience is characterised by two perceptions. Firstly, the listener perceives being in close proximity to the performers and location of the sound source. Secondly, the listener perceives what is often reported as a three-dimensional sound.[33] This means the listener can perceive both the position and distance of the source of sound relative to them.
My main trigger is watching someone concentrating silently on a mundane task (writing, drawing, ironing, cleaning, doing a puzzle) and them not being aware that I am aware of what they are doing. I also find sometimes that having a haircut can produce the same sensation. I also find that the feeling can sometimes be accentuated by gently rubbing the back of my neck with something like a pen or the end of my glasses. I haven’t yet found a video that works as a trigger – it needs to be there for real and even then doesn’t and won’t happen “on demand”.
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]