pseudodementia

noun
pseu·​do·​de·​men·​tia | \ ˌsüd-ō-di-ˈmen-chə How to pronounce pseudodementia (audio) \

Medical Definition of pseudodementia

: a that outwardly resembles the cognitive impairment of dementia but does not the result from neurodegeneration and that typically has a psychological cause (such as depression)