(A) Total basilar spine density in unstressed, 0d, 7d, and 10d Rec male and female rats. Chronic stress decreased basilar spine density in 0d and 7d Rec male rats. (B) Basilar stubby spine density in unstressed, 0d, 7d, and 10d Rec male and female rats. (C) Basilar thin spine density in unstressed, 0d, 7d, and 10d Rec male and female rats. (D) Basilar mushroom spine density in unstressed, 0d, 7d, and 10d Rec male and female rats. Chronic stress decrease mushroom spine density in 0d and 7d Rec rats. Error bars represent SEM. * p < 0.05 Unstressed vs 7d Rec males; † p < 0.10 Unstressed vs 0d Rec males; a p < 0.05 7d Rec females vs 7d Rec males; ‡ p < 0.05 Unstressed vs 0d Rec; # p < 0.10 Unstressed vs 7d Rec.