Fig. 3.
Neural activations evoked by appetitive olfactory learning. A, In the main effect of appetitive learning (appCS+U − appCS−), BOLD activity was significantly increased within medial and anterior orbitofrontal cortex. The SPMs are superimposed on coronal (i) and axial (ii) sections of a T1-weighted scan (threshold,p < 0.001). B, C, Neural activations in bilateral nucleus accumbens (B) and posterior amygdala/medial temporal lobe (C) were revealed in the direct contrast of (appCS+U − avCS+U) and are depicted in coronal (i) and axial (ii) formats (threshold, p < 0.005).