👉 Syncephalon, also known as palsy of the brainstem, is a condition where the brainstem (brain) is not fully developed or functioning properly. This can occur in many different ways and includes conditions such as cerebral palsy, which affects the development of the cerebrum, and fetal alcohol syndrome, which affects the developing brain stem. Syncephalic individuals may have difficulty with vision, hearing, coordination, movement, and other cognitive functions due to a lack of proper brainstem function