The “sea horse” is a structure buried deep within each hemisphere of the brain. This term is more descriptive of the imagination of anatomists rather than its function. In a cross section of the cerebral hemisphere the hippocampus looks something like its namesake. The hippocampus is important in short-term memory formation. Patients who have damage to this area lose the ability to retain new information but usually retain old memories.
September 1, 2009 — Bill Dyche