A smaller, more recent study offers a hint as to where ASMR research might go. Last year, psychology professor Stephen Smith and two colleagues at the University of Winnipeg put 22 subjects into fMRI scanners. Half were people who reported experiencing ASMR, and half were controls. Because the researchers did not know if they could reliably trigger tingles inside noisy fMRI machines—they tried this approach, and subjects seemed to have trouble relaxing—they scanned the resting states of 22 brains as the subjects simply lay there, to see if there were any differences between the two.
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.