Deep dyslexia
![Computerized tomography (CT) scan showing brain multiple frontal, parietal, and temporal lobe lesions.[4] The cause of deep dyslexia is damage in the left hemisphere of the brain](/Images/godic/202501/08/Brain_trauma_CT3736.jpg")
![Deep dyslexics have sufficient activation of a written word's features; but, this activation decays quickly, leading to errors in speech output.](/Images/godic/202501/08/Connectionist_model_of_deep_dyslexia3736.png")
![Deep dyslexia can affect both pathways in the dual-route hypothesis of reading.](/Images/godic/202501/08/Dual_route_model_and_deep_dyslexia_diagram.svg3736.png")
![Activation areas in the left hemisphere when hearing or reading a word. The](/Images/godic/202501/08/HearReadBrain3736.png")
Deep dyslexia is a form of alexia that disrupts reading processes. Deep dyslexia may occur as a result of a head injury, stroke, disease, or operation. This injury results in the occurrence of semantic errors during reading and the impairment of nonword reading.