Monotropic<unk>  and polytropic learning brain lateralization has been considered around<unk>  as a mental health symptom. It is under study but not empirically proven.<unk>  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.<unk>  on a certain subject can cause side-tracking away from assigned or important tasks. Psychiatrically, it is considered to be a trait of ADHD together with inattention, and it has been proposed as a trait of other conditions, such as schizophrenia, and autism spectrum disorder (ASD).<unk>  may bear a relationship to the concept of flow. In some circumstances, both flow and<unk>  can be an aid to achievement, but in other circumstances, the same focus and behavior could be a liability, distracting from the task at hand. However, unlike<unk> , "flow" is often described in more positive terms, suggesting they are not two sides of the same condition under contrasting circumstance or intellect.
Hyperfocus
Hyperintensity
Midline shift
Left shift 
Endaural phenomena
Boanthropy
Modic changes
Fencing response