Kabai P, Kovach J, Vadasz C
Research Department, Menninger Clinic, Topeka, KS 66601.
Brain Res. 1992 Feb 28;573(2):260-6. doi: 10.1016/0006-8993(92)90771-z.
The uptake of tritiated 2-deoxyglucose (2-DG) was examined in brains of artificially selected and unselected control quail, in relation to genetically and environmentally variable early approach preferences of a colored stimulus. The data indicated high labeling in the tectofugal and low labeling in the thalamofugal projection systems in birds exhibiting preference for the light wavelength characteristics of the stimulus in independently tested choice situations. The differential labeling was observed regardless whether the stimulus preference was genetic or environmental in origin (i.e. whether it was exhibited by artificially selected and experientially naive or by unselected and imprinted control chicks). Chicks responding to the stimulus after prior imprinting experiences also exhibited high labeling in the intermediate medial portions of the neostriatum and hyperstriatum ventrale.
研究了人工选择的鹌鹑和未选择的对照鹌鹑大脑中氚标记的2-脱氧葡萄糖(2-DG)摄取情况,这与有色刺激在遗传和环境方面可变的早期接近偏好有关。数据表明,在独立测试的选择情境中,对刺激的光波长特征表现出偏好的鸟类,其顶盖传出投射系统标记高,而丘脑传出投射系统标记低。无论刺激偏好是遗传起源还是环境起源(即它是由人工选择且缺乏经验的鹌鹑表现出来,还是由未选择且经过印记的对照雏鸡表现出来),都观察到了这种差异标记。在有过印记经历后对刺激做出反应的雏鸡,其新纹状体和腹侧超纹状体的中间内侧部分也表现出高标记。