Movie S1

Free swimming behavior of control and mutant LGN and PTXa mice. Mice were introduced to an open pool and their behavior recorded. Twenty-second clips are shown for each genotype: LGN^DEL/+, LGN^DEL/DEL, 0; PTXa, and Atoh1-Cre; PTXa. Mutant animals show less organization of their swimming movements and escape search compared to controls.