Visual Information Processing


     The components of visual information processing are the stimulus evaluation stage, the stimulus detection stage, and the memory search stage. The stimulus detection stage is when sensory information is processed prior to the actual perception of it. In the stimulus evaluation stage, the characteristics of the stimuli are analyzed in order to sort by the differences in the stimuliThe memory search stage is when the now analyzed stimuli are compared with the designated targets stored in the memory.


     In the processing of visual information, patients with temporal lobe epilepsy show disturbance in the stimulus evaluation stage of visual processing but normal processing in the stimulus detection and memory search stages. This abnormal pattern of visual information processing suggests that temporal lobe epilepsy may contribute to the development of epileptic psychosis. Psychosis literally means an abnormal condition of the mind, a generic psychiatric term for a mental state often described as involving a "loss of contact with reality."


Visual Learning Deficits: Continued •  Religion and Art