Dysgranular retrosplenial cortex lesions in rats disrupt cross-modal object recognition

Cohort 1: mean recognition (D2) scores on the dark–dark and light–light sessions of the object recognition task without barriers. Any objects that could be recognized in the dark were removed from the analysis. Consequently, neither the Sham1 nor the RSdysg group was above chance discrimination on the dark–dark trials. On the light–light trials, where the same objects are used as in the dark–dark trials, both groups spent significantly more time with the novel object. Error bars, SEM.