Which one of the is the simple apprehension itself?
Mental image is the simple apprehension itself.
A sense perception of something we see disappears when we are no longer looking at it.
A sense perception of a chair is different from the chair itself because the chair exists in the mind while the sense perception exists outside the mind.
Sense perception is the act of seeing or hearing or smelling or tasting or touching.
When we see something, an image forms in our mind which we call a mental image.
A sense perception lasts only as long as we are perceiving the chair through our senses.
A mental image is the image of an object formed in our mind as a result of a sense perception of that object.
The idea of a chair in your mind must be accompanied by the sense perception of a chair or by the mental image of a chair.
Simple apprehension is an act by which the mind grasps the concept or general meaning of an object and affirms or denies something about it.
The terms 'concept' and 'simple apprehension' mean the same thing.
A simple apprehension (or concept) has shape and color.
When we have a simple apprehension of a thing, we grasp the thing’s essense.
If you have a different mental image of a concept than another person has, then you both cannot be thinking of the same concept.
The process by which a simple apprehension is derived from a sense perception and mental image is called abstraction.
If we were to affirm or deny something about a concept, we would be going beyond simple apprehension to judgement.