表征电弧突变小鼠的认知和mesofrontal赤字。(a)图显示的导航选择Y-maze老鼠。在迷宫的中心,鼠标选择进入新的手臂(变更)或之前访问过的旧的手臂。(b)交替在Y-maze任务显示比例显著减少Arc - / -动物与野生型相比,动物(* * p = 0.001, t, t (15) = 3.975 WT N = 8,弧- / - N = 9老鼠,两组通过Shapiro-Wilk正常测试在α= 0.05)。(c)总手臂条目之间的可比性弧- / -和WT。(d),示意图TH-Cre AAV注射的动物标签多巴胺能神经元。底,共焦图像显示tdTomato(红色)和SypGFP在腹侧被盖区(绿色)标签。µm酒吧,规模100人。(e),共焦图像显示多巴胺能轴突在额叶皮层的标签。平方米的虚线表示的。µm酒吧,规模100人。正确的,放大区域显示标记轴突(tdTomato、红)和剑头(tdTomato + SypGFP,黄色)。 Scale bar, 20 µm. (f, g) The normalized axon length (f) is not significantly different. The normalized bouton density (g) is significantly reduced in Arc-/- animals compared to WT (*p=0.034, t-test, t-test, t(12)=2.393, N=7 mice for each group). The axon length is normalized by the number of labeled cells in VTA, the bouton density is normalized by the axon length, and both are expressed as a percentage of the group average in WT mice. All the error bars indicate SEM. Credit:(2023)。DOI: 10.7554 / eLife.87414.1