cognitive process vs mental process

cognitive process and mental process both are nouns.

Word	Noun	Adjective	Verb	Adverb
cognitive process	Yes	No	No	No
mental process	Yes	No	No	No

As nouns, cognitive process and mental process are synonyms defined as:

cognitive process and mental process: (psychology) the performance of some composite cognitive activity; an operation that affects mental contents

Other synonyms of cognitive process include cognitive operation, operation, process.

cognitive process (noun)	mental process (noun)
(psychology) the performance of some composite cognitive activity; an operation that affects mental contents	(psychology) the performance of some composite cognitive activity; an operation that affects mental contents