Figure 5. Identity PEs unmodulated by perceptual distance better account for fMRI responses.

Bar plots depict parameter estimates for identity PEs modulated (white) and unmodulated (black) by the MDS-derived perceptual distance between expected and received odors in a priori ROIs of midbrain, posterior OFC (pOFC), PC, and amygdala. Note that parameter estimates are from z-scored parametric modulators in otherwise identical GLMs and thus reflect explained variance in fMRI responses. Error bars represent SEM.