成年雄性斑胸草雀前脑与中脑对习得性发声控制的侧别差异  

Lateral differences in the forebrain and midbrain control of learned vocalizations in adult male Zebra Finch (Taeniopygia guttata)

作　　者：曾贤燕[1] 李东风[1] 

机构地区：[1]华南师范大学生命科学学院,广东省高等学校生态与环境科学重点实验室,广州510631

出　　处：《Zoological Research》2013年第1期1-7,共7页动物学研究（英文）

基　　金：国家自然科学基金资助项目(30970363;31172092)

摘　　要：成年雄性鸣禽的习得性发声信号——长鸣(longcall)和鸣唱(song)是由前脑高级发声中枢启动,以及由前脑最后一级输出核团弓状皮质栎核(robust nucleus of the arcopallium,RA)整合输出。RA投射神经元与位于中脑的基本发声中枢丘间复合体背内侧核(dorsomedial nucleus of the intercollicular,DM)形成突触连接。该文采用电损毁与声谱分析相结合的方法,通过依次损毁成年雄性斑胸草雀(Taeniopygia guttata)单侧RA和DM核团,探讨了前脑和中脑对习得性发声的影响。结果提示,RA核团与DM核团共同参与了对雄性斑胸草雀习得性声音的调控,而且这种控制具有右侧优势。Learned vocalizations （long call and song） of adult male songbirds start from the high vocal center （HVC）, and are integrated and output by the robust nucleus of the arcopallium （RA）, which connects synaptic relationships with the dorsomedial nucleus of the intercollicular complex （DM）. To determine the effect on learned vocalization of the unilateral forebrain and midbrain in adult male zebra finch, electrolytic lesions and acoustic analysis technology were used. The results indicated that RA and DM nuclei are involved in the control of learned vocalization, and the right side is dominant in the forebrain and midbrain.

关 键 词：成年雄性斑胸草雀 弓状皮质栎核 丘间复合体背内侧核 习得性发声 声谱分析 

分 类 号：Q42[生物学—神经生物学]