Fig. 1. (A) Dorsal view of the anuran brain. The level of the two coronal sections (1, 2) on the right is shown by the two solid vertical lines (adapted from Donkelaar, 1998). (B,C) Electrolytic lesions (dark areas) placed in the preoptic area (POa) of (B) seven lipopolysaccharide (LPS)-treated and (C) five saline-treated toads. Abbreviations: ca, anterior commissure; cho, optic chiasm; T, toad; vt, third ventricle.