Figure 3. Mushroom spine density is greatly increased in βAdd KO mice following cocaine treatment.
The percentage change in density of A) total, B) mushroom, C) thin, and D) stubby spines over saline-treatment was measured following repeated cocaine administration (15 mg/kg, , i.p.; 10 days), spine density was measured in the NAc of βAdd KO mice and their WT siblings using NeuronStudio. There was a significant increase in the density of mushroom spines in the NAc of βAdd KO mice following cocaine treatment (*, p ≤ 0.05).