Improvement Effect of Lacosamide and Levetiracetam on Cognitive in Alzheimer's Disease Patients With Epilepsy

Participants will perform Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Clinical Dementia Rating (CDR), Alzheimer's disease assessment scale-cognitive section (ADAS-Cog), Hamilton Anxiety Scale (HAMA) and Hamilton Depression Rating Scale (HAMD) evaluation. The patients will be randomly divided into two groups, treated with lacosamide and levetiracetam respectively, and maintained for 6 months. Researchers will compare the lacosamide group with the levetiracetam group to see if the improvement of cognitive function in the two groups.