This is the information perceived through the senses, such as visual and auditory perception. Difficulties with visual perception can cause problems with recognizing the shape, position and size of items seen. There can be problems with sequencing, which can relate to deficits with processing time intervals or temporal perception. Difficulties with auditory perception can make it difficult to screen out competing sounds in order to focus on one of them, such as the sound of the teacher's voice. Some children appear to be unable to process tactile input. For example, they may seem insensitive to pain or dislike being touched.
Information enters the brain through all five senses. With learning, the most important senses are visual and auditory. Input is a central process and does not refer to visual or knowledge; it refers to the process of recording information in the brain. Since input refers to how one sees, hears, or perceives the world, the description for this essential process is perception. Therefore, a child might have a visual perceptual or an auditory perceptual disability
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