Cognitive dysfunction
Cognitive impairment or cognitive deficit is used to describe any characteristic that acts as a barrier to the cognition process, which affects intellectual performance. In education, it usually refers to school performance related to the several learning disabilities typically seen found in students who are intelligent but who show certain continual challenges with learning.
Cognitive deficits relate to specific deficits in cognitive abilities such as Reading, Writing, Math, Comprehension, Visual and Auditory Memory, Dyslexia, Auditory Processing, Working Memory, Non-verbal Learning and Logical Reasoning, Dyslexia, not to exclude Dysgraphia, Dyscalculia and Attention Disorders, better known as ADD or ADHD.