Are they both correct?

It would not be usual to use the article there.

AnonymousHuman psychology is really complex.

This one.

CJ

Why?

AnonymousWhy?

"human psychology" takes into account all human psychology. It's not a question of 'which human psychology'. There's only one it could be. It's not as if there were "this human psychology", and "that human psychology", and "another human psychology".

CJ

What about the words "the human mind" and "the human body"?

AnonymousWhat about the words "the human mind" and "the human body"?

These are different because "mind" and "body" are countable, so an article (or other determiner) is grammatically required), whereas "psychology" is uncountable. Nevertheless, while bearing in mind CalfJim's reply, it is not obvious to me that no phrases of the form "the + human + uncountable

Can we not use definite articles with uncountable nouns? I thought we can.

GPYit is not obvious to me that no phrases of the form "the + human + uncountable noun" exist referring to general human attributes.

Nor to me. "the human condition"

The countability of a noun should have no bearing on the use of "the". It's "a" that is of interest in that situation.

In my opinion, this is one of the thorniest problems in E

CalifJimNor to me. "the human condition"

But "condition" is countable??

GPYBut "condition" is countable?

?

I thought we had established that "the" can be used with both countable and non-countable nouns, so whether a noun is countable is irrelevant in deciding whether to use "the".

CJ