Perception is another important processes of the human mind on which the cognitive psychology works on. Perception can be defined as the process of understanding the surrounding with the help of the brief interpretation of the stimuli. It involves physical senses like sight, hearing, taste, smell and touch. It helps a man to make all kind of reflexes. Perception also consists of the cognitive processes which are involved in interpreting those senses as well. Early psychologist Edward B. Titchener first initiated to work with this item and developed this one a lot.