Using a combined electrophysiological and computational approach, Oruro et al. (LearnMem 27: 493–502) show that the GABAergic input enhances the olfactory bulb-anterior piriform cortex (OB-aPC) circuit's ability for maternal odor learning and amplifies its recall. Such an effect is due to the maturational characteristics of the GABAergic inputs that depolarize aPC pyramidal neurons during the sensitive period for attachment learning. The image shows that aPC circuits without (top figure) or with (bottom figure) GABAergic interneurons can learn maternal odor after conditioning. However, GABA-conditioned circuits are more likely to recruit more aPC pyramidal cells and engage them in more triggering activity in response to the conditioned maternal odor, thereby amplifying the entire circuit's response to maternal odor.