Discriminator rats exhibited an enhanced coherence between the Te1 and the PL cortex in the slow-gamma band. Discriminator rats exhibited an enhanced coherence between the Te1 and the PL cortex in the slow-gamma band. A, Raw and gamma-filtered (40–70 Hz) activity recorded in the PL cortex and the Te1 before and during presentation of the new tone. B, Discriminator animals displayed significantly higher Te1–PL cortex coherence (new tone minus pretone) than generalizer rats in the 40–70 frequency band but not in the other ranges. C, D, In discriminator rats, slow-gamma coherence increased during the 500 ms of the new tone onset, relative to the pretone activity, while in generalizer rats, there was no change. E, Raw and gamma-filtered (40–70 Hz) neural activity recorded in the PL cortex and the Te1 before and during the presentation of the CS. F, The PL cortex and Te1 coherences (CS minus pre-CS) were similar in generalizers and discriminators for each frequency band. G, Freezing responses during presentation of an olfactory stimulus in a subgroup of generalizer and discriminator rats. H, Presentation of the odor did not result in a change in Te1–PL cortex coherence. All coherences are expressed as stimulus minus prestimulus (Δ Coherence). Data are presented as the mean curve or dots representing the area under the curve for each animal. ***p < 0.001. All data are mean ± SEM. Giulia Concina et al. J. Neurosci. 2018;38:8313-8328 ©2018 by Society for Neuroscience