Ive had sensory issues my entire life. Some things are very unpleasant for me. I know things I say or do are odd to most people. I was just passing along something I found with certain materials, for me. If you don't notice these things that is good, life is easier for you.

This shows there is some difference in frame materials and vibration/shock but I don't think its a detailed report.
https://web.mit.edu/2.tha/www/ppt/Bike-ISEA.pdf