The results were as follows: (1)There were enkephalin positive fibers in the male or female HVC (the caudal nucleus of ventral hyperstriatum) and RA, but there were also some enkephalin positive cells in the male RA.

• 结果发现 :(1)雌雄白腰文鸟端脑发声调控核团上纹状体腹尾侧核、古纹状体栎核中存在脑啡肽能纤维分布 ,但脑啡肽能纤维在雄性的此二核内分布比较集中。