Never thought about this, this is such a smart thing to consider!

My new name has no similarity to my old name. Both will get my attention. This may be because we’re just different people with different brains, but it could also be that I introduced my new name in college, where I got lots of practice introducing myself with it, and the new name was the only name with which I heard myself addressed. The old name only comes out with my parents, but I do have 18 years of responsiveness to that name and only that name that are probably difficult to stamp out of my subconscious.

Also just realized that back when I only had my old name, some people shortened it to a nickname that begins with a different sound. This probably primed my brain to be responsive to that different sound as well, and my new name begins with that sound. Think “Elizabeth” as an old name, people shortening to “Liz,” and settling on “Lily” for a new name. I didn’t consciously pick the new name based on the nickname, but given the nickname was usually only used by people I liked, it’s possible it factored in subconsciously.