There are a few theories that attempt to explain the processes behind<unk>  and its symptoms. This topic still remains controversial as complete<unk>  is rare in humans especially compared to monkeys.<unk>  is thought to occur from damage to temporal sections of the limbic networks, which connects to other structures that regulate emotional behavior.Norman Geschwind's theory states that<unk>  is caused by disconnect syndrome (a condition of the brain where the two hemispheres develop separately or at different rates) and that the initial contributor for this is the blockage of visual input to the limbic circuit. Another theory, called Muller theory, attributes<unk>  to the disconnection of pathways used for emotional regulation and memory, such as those connecting the dorsomedial thalamus to the prefrontal cortex. The medial temporal sections of the limbic system can be associated with more primitive functions such as reproduction, food, and defence. This can be seen in the symptoms of increased hypersexuality, hyperorality, and general aggression.
Klüver–Bucy syndrome
Zunich–Kaye syndrome
Coffin–Siris syndrome
Keppen–Lubinsky syndrome
Weismann-Netter–Stuhl syndrome
Lutembacher's syndrome
Beckwith–Wiedemann syndrome
Laugier–Hunziker syndrome