I think therefore I am. — If I believe it exists, it must be real somewhere. Using the primary senses to become aware Perception can be split into two processes, (1) processing the sensory input, which transforms these low-level information to higher-level information (e.g., extracts shapes for object recognition);
(2) processing which is connected with a person’s concepts and expectations (or knowledge), restorative and selective mechanisms (such as attention) that influence perception.