I get these two mixed up a lot. A friend had to remind me of their correct use.

Physiologically related to the body

psychologically related to the mind?

Here is a weird way to remember but it might help.

Physiologically  = Si as sounds like see and see is done by the eyes of the body.

psychologically = Ch might be related to the cerebellum which is part of the brain or the mind.

We’ll see if this can help me keep the two apart.

Do you have a better idea? If so, please share in the comment section of this blog. Thanks