Stereotyped episodes of short-lasting (i.e., minutes to few hours) gait imbalance, slurred speech, and limb dysmetria were reported in 25% of adult patients with anti–contactin associated protein-like 2 (CASPR2) antibody-related autoimmune limbic encephalitis presenting with amnesia and seizures [364,365]. The gene discussed is CNTNAP2; the disease is amnesia.