We de-identified them, ran them through human subjects protocol for approval to do a secondary analysis on, came up with 150 emotions that were very difficult for people to name and when they ...

Developed by psychologist Robert Plutchik, this tool categorizes emotions into primary and secondary groups, and is presented in a circular diagram that vividly illustrates their interconnectedness.

For example, suppose you're angry at something or someone. It may be a secondary emotion to something much deeper -- the ...