Answer: Unshared environment
Explanation: schizophrenia refers to a serious mental disorder which affects an individual's ability to feel or think clearly, it simply leads to abnormal interpretation of reality. The Unshared environment simply refers to that part of the environment in which individuals living together such as siblings do not share and as such used to make distinction between them. Unshared environment represents the major source of environmental variance for personality, psychopathology, and cognitive abilities. The case of the genian points out that siblings raised in the same household may experience their environment very differently
