【摘要】 <正> 巴甫洛夫学派大都是运用經典的先后对比的方法在狗身上建立条件反射分化的,用同时辨別的方法为数极少。英美学者則都应用同时辨別的方法研究动物对形状、大小、明度的辨別,但解释生理机制时只局限于感受部份,很少提及中枢作用。 早在1911年耶克斯-华生(Yerkes-Watson)創制了辨別箱,研究动物对图形的同时辨更多还原

【Abstract】 The purpose of this experiment is to clarify the question whether a dog can discriminate two simultaniously presented geometrical figures, as well as to explain the dog’s physiological mechanisms of simultaneous differentiation according to the fundamental principles of Pavlov’s theory. The experiment was carried out with two dogs on a conditioned motor running reflex. The stimuli consisted of two white figures on a black background, one being a rectangle and the other, a triangle of equal area. The results show that: (1) the dogs succeeded in discriminating the simultaneously presented stimuli of two geometrical figures, (2) in response to these paired stimuli, the dogs reacted not only to the absolute stimuli——the rectangle served as a positive signal for food, and triangle, merely as a negative signal, but also to their combined effect as a compound stimulus.更多还原