鸣禽锡嘴雀(Coccothraustes coccothraustes)发声中枢的定位研究  

A STUDY ON LOCATION OF VOCALIZATION CENTRES IN HAWFINCH(Coccothraustes coccothraustes)

作　　者：蓝书成[1] 左明雪[1] 李东风[1] 曾庆华[1] 迟先煊 

机构地区：[1]东北师范大学生物系神经生物学研究室

出　　处：《生理学报》1990年第4期348-355,共8页Acta Physiologica Sinica

基　　金：国家自然科学基金

摘　　要：用常规组织学,HRP 逆行示踪,电生理等方法确定了鸣禽锡嘴雀控制发声的神经核团及这些核团的定位坐标值。锡嘴雀控制发声的神经通路由四级神经核团组成。位于端脑上纹状体腹侧的尾部区域(HVc)是控制鸣禽发声的高位中枢,它发出的神经纤维投射到端脑原纹状体腹内侧的粗核(RA),由 RA 又发出两束纤维,分別投射到中脑丘间核(ICo)和延脑的中间核(IM)。左右侧发声控制神经通路并非严格单侧性,每侧气管鸣管肌群分別受双侧发声中枢的交叉控制。中脑 ICo 在控制发声行为中具有相对独立性。各级发声核团的定位坐标值为,HVc∶p1.3,L/R2.4,H0.8;RA∶1.4,L/R3.2,H6.0;ICo∶p0.3,L/R2.6,H8.5:IM∶P3.1,L/R1.0,H∶7.8。Vocal-control nuclei in hawfinch(Coccothraustes coccothraustes)were studiedby HRP retrograde tracing and electrophysiological methods.Vocal controlcentres in hawfinch consist of four discrete nuclei.Hyperstriatum ventral,parscaudale(HVc)is the highest nucleus,with its efferent fibers projecting to therubust nucleus of archistriatum(RA),which in turn projects to the nucleusintercollicularis(ICo)of midbrain and the nucleus intermedius(IM)of me-dulla oblongata.IM innervating vocal organ(syrinx)also receives input from ICo.The both vocal control pathways are not strictly unilateral.ICo plays a relativeindependent role in vocal control.The stereotaxic coordinates for HVc RA,ICo,IM are tabulated in Table 2

关 键 词：锡嘴雀 发声中枢 发声 立体定位 

分 类 号：Q959.705[生物学—动物学]