divergent thinking vs mentation

divergent thinking and mentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
divergent thinking	Yes	No	No	No
mentation	Yes	No	No	No

As nouns, mentation is a hypernym of divergent thinking; that is, mentation is a word with a broader meaning than divergent thinking:

divergent thinking: thinking that moves away in diverging directions so as to involve a variety of aspects and which sometimes lead to novel ideas and solutions; associated with creativity
mentation: the process of using your mind to consider something carefully

Other hypernyms of divergent thinking include cerebration, intellection, thinking, thought, thought process.

divergent thinking (noun)	mentation (noun)
thinking that moves away in diverging directions so as to involve a variety of aspects and which sometimes lead to novel ideas and solutions; associated with creativity	the process of using your mind to consider something carefully