process *****
cognitive process
mental process
operation ****
cognitive operation

The form, beyond the hands and the face, had no part in her mental processes.

Like everybody else, I have access only to my own mental processes.

One had to have some kind of mental process to be dangerous.

He wasn't certain how her mental processes worked, only that they did.

It was hard to keep his own mental processes under control.

What part do these gentlemen play in the mental process?

This is a difficult mental process that we will all have to go through.

They could never follow a mental process in his thought.

I am interested in those who had a completely different mental process than the rest.

Once the mental process was started it took no time at all.