Jarvis E D, Scharff C, Grossman M R, Ramos J A, Nottebohm F
Laboratory of Animal Behavior, The Rockefeller University, New York, New York 10021, USA.
Neuron. 1998 Oct;21(4):775-88. doi: 10.1016/s0896-6273(00)80594-2.
Male zebra finches display two song behaviors: directed and undirected singing. The two differ little in the vocalizations produced but greatly in how song is delivered. "Directed" song is usually accompanied by a courtship dance and is addressed almost exclusively to females. "Undirected" song is not accompanied by the dance and is produced when the male is in the presence of other males, alone, or outside a nest occupied by its mate. Here, we show that the anterior forebrain vocal pathway contains medial and lateral "cortical-basal ganglia" subdivisions that have differential ZENK gene activation depending on whether the bird sings female-directed or undirected song. Differences also occur in the vocal output nucleus, RA. Thus, although these two vocal behaviors are very similar, their brain activation patterns are dramatically different.
定向鸣唱和非定向鸣唱。这两种行为在发出的声音上差异不大，但在鸣唱的传递方式上有很大不同。“定向”鸣唱通常伴随着求偶舞蹈，几乎完全是对着雌性发出的。“非定向”鸣唱不伴随着舞蹈，当雄性处于其他雄性面前、单独存在或在其配偶占据的巢穴之外时发出。在这里，我们表明前脑发声通路包含内侧和外侧“皮质-基底神经节”亚区，根据鸟类是唱给雌性的定向歌曲还是非定向歌曲，这些亚区有不同的ZENK基因激活。在发声输出核团RA中也存在差异。因此，尽管这两种发声行为非常相似，但它们的大脑激活模式却截然不同。
