While doing research for paper I plan to submit for publication, I discovered a talk given by Dr. Glimcher entitled "Neurobiological Evidence of a Cardinal Utility Signal: Implications for Welfare in Political Economy." My paper is on a remarkably similar topic, so it looks like exactly what I'm looking for! However, I cannot find a copy of the lecture online, nor a copy of the sources he used.

Reviewing his publications has gotten me a lot of information, most importantly this 2012 meta-analysis. But the paper doesn't use the term "cardinal utility," so I am unsure if I am supposed to read between the lines or if I am misunderstanding the relevance of the data.

I intend to email him to ask for sources for the lecture and to ask if I'm interpreting his work correctly, but I am unsure how to best do so. Can anyone with experience emailing authors have advice? I'd like to avoid a faux pas.