CNTNAP2 and autism: To investigate the neural mechanisms in the olfactory bulb that support odor detection in autism mouse models, we recorded olfactory bulb responses in Cntnap2−/− and Shank3B−/+ (Fig. 1A,B) mice before and after training to detect weak target odors (0.025% vapor saturation) presented alongside strong background odors (0.1% vapor saturation).