Martin J T, Delanerolle N, Phillips R E
Faculty of Natural Sciences and Mathematics, Stockton State College, Pomona, N.J. U.S.A.
Department of Animal Science, University of Minnesota, St. Paul, Minn. U.S.A.
Behav Processes. 1979 Dec;4(4):283-93. doi: 10.1016/0376-6357(79)90014-7.
Bilateral section of the efferent pathway (tractus occipitomesencephalicus) from the archistriatum of the duck depresses fear-motivated responses as measured by (a) latency to escape in a runway test; (b) latency to approach and drink in the experimenter's presence following water deprivation, and (c) number of agonistic responses directed to an object introduced into the home cage. Sectioning this pathway also raises plasma corticosteroid levels in both adult mallards and newly hatched chickens. Plasma corticosteroid levels were negatively correlated with latency to approach and drink in controls. Experimental reduction of the neutral output of the mallard archistriatum produces an animal that resembles the adult domesticated duck in its basal plasma corticosteroid level and in its avoidance behavior, suggesting that selection for reduced archistriatal activity occurs during domestication.
切断鸭古纹状体传出通路（枕中脑束）的双侧，会抑制恐惧驱动的反应，具体表现为：（a）在跑道试验中逃脱的潜伏期；（b）在缺水后面对实验者时接近并饮水的潜伏期；（c）对引入饲养笼中的物体做出的攻击反应数量。切断该通路还会使成年绿头鸭和新孵化的小鸡的血浆皮质类固醇水平升高。在对照组中，血浆皮质类固醇水平与接近并饮水的潜伏期呈负相关。对绿头鸭古纹状体中性输出的实验性减少产生了一种动物，其基础血浆皮质类固醇水平和回避行为类似于成年家鸭，这表明在驯化过程中发生了对古纹状体活动减少的选择。
