I was actually thinking about a phrase like “it activated my amygdala” instead of “it made me anxious” et al, where you have to know some neuroscience, hence less accessible to the general populace. Another example is “updated my priors” instead of “learned some new information” or “changed my mind.”

I agree. I really dislike technical-sounding jargon that really are just replacements for feeling-talk.

Use scientific terms for science. Use normal words for your own experience unless you really were hooked up to a machine and were measured in some way.