holistic theory vs Gestalt psychology

holistic theory and Gestalt psychology both are nouns.

Word	Noun	Adjective	Verb	Adverb
holistic theory	Yes	No	No	No
Gestalt psychology	Yes	No	No	No

holistic theory (noun)	Gestalt psychology (noun)
the theory that the parts of any whole cannot exist and cannot be understood except in their relation to the whole	(psychology) a theory of psychology that emphasizes the importance of configurational properties