Figure 2.

Merged PET‐MRI sections illustrating CBF activations in the right orbitofrontal cortex when the control condition was subtracted from the novel tactile encoding condition and the aversive tactile condition. Composite diagram (right) indicating the location of the orbitofrontal peaks in the present study. Note that the activity in the two conditions was separated by the transverse orbital sulcus (TOS) which separates the rostral orbitofrontal cortex from the caudal orbitofrontal cortex. Site comparison schematic (bottom) indicating the approximate location of the orbitofrontal peaks from earlier‐published visual and auditory encoding experiments in our laboratory. IOS, intermediate orbital sulcus; LOS, lateral orbital sulcus; MOS, medial orbital sulcus; OLF, olfactory sulcus.