SLC6A3 and attention deficit-hyperactivity disorder: Summing up, the phenotypic features of DAT-deficient animals are frequently related to pathogenesis and symptoms of such DA-related disorders as schizophrenia, ADHD, drug addiction, etc. According to our opinion (Table 3), described in the present review, DAT-deficient animals have some but limited usefulness as models of neuropsychiatric disorders.