Hyperfocus is an intense form of mental concentration or visualization that focuses consciousness on a subject, topic, or task. In some individuals, various subjects or topics may also include daydreams, concepts, fiction, the imagination, and other objects of the mind. Hyperfocus on a certain subject can cause side-tracking away from assigned or important tasks.
Psychiatrically, it is considered to be a trait of attention deficit hyperactivity disorder (ADHD) together with inattention, and it has been proposed as a trait of other conditions, such as schizophrenia and autism spectrum disorder (ASD).