Fig. 1.

Experiment 1. Diagrams of coronal sections (0.48–1.7 mm anterior to bregma) on which the extent of cell loss observed after bilateral infusions of quinolinic acid aimed at the gustatory region of the insular cortex has been reconstructed from histology to reveal the largest (darker) and smallest (lighter) regions of damage induced in group GC. Thelines drawn on the right-hand hemisphere extending laterally from the corpus callosum (cc) and the claustrum (CL) reflect divisions between (from thetop) primary somatosensory (S), granular (GI), dorsal agranular (dAI), and ventral agranular (vAI) regions of insular cortex, respectively, as labeled on the lowermost section. rf, Rhinal fissure.