Davies D C, Horn G, McCabe B J
Brain Res. 1983 Nov;312(2):251-5. doi: 10.1016/0165-3806(83)90141-4.
The concentrations of adrenaline, dopamine and noradrenaline were measured in 3 regions of the domestic chick telencephalon: (a) the Wulst; (b) a medial forebrain sample comprising mainly the intermediate part of the medial hyperstriatum ventrale (IMHV); and (c) a basal forebrain sample comprising mainly paleostriatum augmentatum. There was no significant left/right hemispheric asymmetry in the concentration of any of these catecholamines in any region studied. Adrenaline was undetectable in the Wulst and medial forebrain samples and only trace amounts were found in the basal forebrain samples of 1-day-old, light-reared chicks. Dopamine concentrations of 9.13 +/- 1.13 (S.E.M.) ng/g were present in the Wulst, 16.66 +/- 2.56 ng/g in the medial forebrain and 121.19 +/- 33.06 ng/g in the basal forebrain samples at hatching. These levels did not alter with age or with visual experience of an imprinting stimulus during the first 50 h post-hatch. At hatching, noradrenaline concentrations of 35.83 +/- 8.61 ng/g were present in the Wulst, 26.09 +/- 3.75 ng/g in the medial forebrain and 53.13 +/- 7.85 in the basal forebrain samples. The noradrenaline concentrations in the Wulst and medial forebrain samples increased significantly over the first 50 h post-hatch in dark-reared chicks. Visual experience increased noradrenaline levels in all 3 regions of the telencephalon studied.
在家鸡端脑的3个区域测量了肾上腺素、多巴胺和去甲肾上腺素的浓度:(a) 视叶;(b) 一个前脑内侧样本,主要包括腹内侧超纹状体中间部分(IMHV);(c) 一个前脑基底样本,主要包括增新纹状体。在所研究的任何区域,这些儿茶酚胺中任何一种的浓度均无明显的左右半球不对称性。在视叶和前脑内侧样本中未检测到肾上腺素,在1日龄、光照饲养雏鸡的前脑基底样本中仅发现痕量。孵化时,视叶中的多巴胺浓度为9.13±1.13(标准误)ng/g,前脑内侧为16.66±2.56 ng/g,前脑基底样本中为121.19±33.06 ng/g。在孵化后的前50小时内,这些水平不会随年龄或印记刺激的视觉经验而改变。孵化时,视叶中的去甲肾上腺素浓度为35.83±8.61 ng/g,前脑内侧为26.09±3.75 ng/g,前脑基底样本中为53.13±7.85 ng/g。在黑暗饲养的雏鸡中,视叶和前脑内侧样本中的去甲肾上腺素浓度在孵化后的前50小时内显著增加。视觉经验增加了所研究的端脑所有3个区域的去甲肾上腺素水平。