Fig. 3

AVP and its receptors in the cerebral cortex. a AVP expression was mainly found in layers II and III. The expression was observed in the cell soma, often visualized as positive grains in the cytoplasm. The neuronal processes showed very limited or no immunoreactivity. No AVP immunoreactivity was detected in cortical layer I, where there were few neuronal cell somas. b V1bR immunoreactivity was observed mainly in layer III. The expression was displayed in the neuronal cytoplasm. No staining was found in the fibers