Alzheimer Disease 3, also known as alzheimer disease, type 3, is related to early-onset autosomal dominant alzheimer disease and mild cognitive impairment, and has symptoms including myoclonus, seizures and abnormality of extrapyramidal motor function. An important gene associated with Alzheimer Disease 3 is PSEN1 (Presenilin 1), and among its related pathways/superpathways are Alzheimer's disease and miRNA effects and Neuroscience. The drugs Levetiracetam and Lacosamide have been mentioned in the context of this disorder. Affiliated tissues include brain and cortex, and related phenotypes are seizure and dysarthria