mental images

We are conscious merely of our sensations of, or mental images of, the outside objects.

Through Perception we are able to form ideas and mental images, which in turn lead to thoughts.

Recollection (which is really a re-collection of percepts) must precede Representation in the shape of mental images or pictures.

By Presentation is meant the direct offering to the consciousness of mental images or objects of thought.

In order to form clear mental images of a thing we must have perceived it clearly in the first place.