Computer-assisted reconstructions of Golgi-stained neurons in layer II–III of medial prefrontal cortex in unstressed (left) and stressed (right) rats. Scale bar = 50 mm. These neurons were selected because they are representative of apical dendritic lengths above (top), near (middle), and below (bottom) their respective group means. Right. Mean intersections of apical (top) and basilar dendrites (bottom) with 10 mm concentric spheres in unstressed and stressed rats. Data have been summed into 20 mm bins. Apical dendritic material distal to the soma was reduced in stressed rats, and the pattern of changes was similar to that seen in corticosterone-treated rats. Vertical bars represent SEM values. Asterisks (*) indicate significant differences relative to unstressed rats.

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