define pseudodementia
Freebase (0.00 / 0 votes) Rate this definition: Pseudodementia. Pseudodementia is a phenotype approximated by a wide variety of underlying disorders. Data indicate that some of the disorders that can convert to a pseudodementia-like presentation include depression, schizophrenia, mania, dissociative disorders, Ganser syndrome, conversion reaction, and psychoactive drugs.