The term ASMR was coined in 2010, but the audio and visual-induced sensation has always existed. If you've ever experienced that cringe-worthy, face-scrunching feeling you get when you hear nails on a chalkboard, ASMR is the exact opposite. It's the chills you get when you hear a beautiful voice singing. It's the prickly sensation when you hear or see something soothing, without having to physically touch it.
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. This means the listener can perceive both the position and distance of the source of sound relative to them.
ASMR is usually precipitated by stimuli referred to as 'triggers'. ASMR triggers, which are most commonly auditory and visual, may be encountered through the interpersonal interactions of daily life. Additionally, ASMR is often triggered by exposure to specific audio and video. Such media may be specially made with the specific purpose of triggering ASMR or originally created for other purposes and later discovered to be effective as a trigger of the experience.