两种鸣禽发声中枢注入HRP标记的研究

THE STUDYING OF HRP LABELING AFTER HRP WAS INJECTED INTO THE VOCAL CENTER IN THE TWO KINDS SONGBIRDS

Location of motor nuclei and nerve pathvay of controlling vocalization of songbird,such as Coccothraustes coccothraustes and Eophona migratoria have been studied by Way of HRP (hor- seradish peroxidase) .The result indicats Nucleus robustus arc- histriatalis(RA)is of main nuclei controlling vocalization in cerebral of both birds montioned above,RA sends out fibre-tra- ctus occipomesencephalicus(OM)projecting to ispilateral Inteme- dius nucleus(IM) in the medullary,and at the same time thefibra branch,passes Connissura anterior (CA) projecting to IM of opposite (the right) ,and the dominating left is observed,Nucl- eus dersalis mediaIis (DM) is one of important nuclei contr- olling vocalization in mensencephalen The left DM sends out fibre(OM)projecting to IM on both the left and the right sides, but the right DM only to IM on right side.A simulation figure on motor nuclei and nerve pathway of controlling vocalization of both songbirds memtioned above has also been presented in this paper.