Information comes out of the brain either through words, that is, language output, or through muscle activity, such as gesturing, writing or drawing. Difficulties with language output can create problems with spoken language, for example, answering a question on demand, in which one must retrieve information from storage, organize thoughts, and put the thoughts into words before one speaks. It can also cause trouble with written language for the same reasons.
Difficulties with motor abilities can cause problems with gross and fine motor skills. Children with gross motor difficulties may be clumsy, that is, they may be prone to stumbling, falling, or bumping into things. They may also have trouble running, climbing, or learning to ride a bicycle. Children with fine motor difficulties may have trouble buttoning shirts, tying shoelaces, or with handwriting etc. Information is communicated through words, language output or through muscle activities (writing, drawing, gesturing, etc.) motor output. Children might have one or both of these output disabilities.