Autonomous sensory meridian response is a tingling sensation, that usually begins on the scalp, and after that goes down your back. This is suppoed to help you reduce stress.
Now, when we have the definition, we can talk a bit aobut ASMR. There are various 'triggers' that cause tingling sensation. Most popular trigers are taping on various things, scratching, whispering...
There are also many people, who do not have tingles from ASMR, but it helps thlem relax. Here is one vidio, so you can see what it is, if you do not already know.
And, in case that you already know, can you share your experinece with us.
Thank you for sharing