What's a word for "properly oriented"?

While editing and improving a question on the Cognitive Sciences site, I came across the following sentence:

Infants can detect an upside human face right after they are born

This sounded awkward to me and I struggled to improve it. I believe the author's intention was to say:

Infants can detect a human face right after they are born, as long as the face is not rotated

or:

Infants can detect a human face (in proper orientation) right after they are born.

But I really feel like there must be a word for "in proper orientation" in a context such as this. What would be appropriate?

upright
Apparently, the author meant upright not upside.

I do not think there's more to it than that. The preceding sentences in that post too have spelling and grammatical errors, as the author does not seem to be a native English speaker. No need to be overly concerned about these minor things.

An answer is in the title of your question: "properly oriented".

Infants can detect a properly oriented human face right after they are born.

Alternatively, the opposite of upside down is right-side up.

Infants can detect a right-side up human face right after they are born.

While not the best for this specific case, in general the word "aligned" would work.

Something which is aligned is in its correct relative position or orientation. For instance, see meaning 2.