👉 Spencerianism is a concept in psychology that refers to a type of personality disorder characterized by intense, persistent, and often obsessive-compulsive behavior. It is named after the psychologist Thomas Spencer, who developed it during his work on psychopathology. This disorder is characterized by a strong need for control over one's thoughts, feelings, and actions, which may lead to repetitive behaviors or compulsive rituals. The term "spencerian" comes from the name of the person who introduced the concept