Figure 1.

Recording method and histological identification of mPFC recording sites. (A) Scheme showing the midline of the cat brain. Dots indicate intended position of microelectrodes in the mPFC. (B) Histological verification of recording sites. Three adjacent coronal brain sections showing the trajectory of two microelectrodes (dashed lines) as well as the location of electrolytic lesions (arrows) performed at the end of the experiments to mark the position of the microelectrode tips in the mPFC. The orientation of A and B is indicated by crosses where R, C, D, V, M, and L stand for rostral, caudal, dorsal, ventral, medial, and lateral, respectively. (AC) Anterior commissure; (CC) corpus callosum; (F) fornix; (IL) infralimbic region; (OB) olfactory bulb; (OX) optic chiasma; (PL) prelimbic region.