Ettlinger G
Int J Neurosci. 1983 Dec;22(1-2):7-19. doi: 10.3109/00207459308987381.
A review of selected aspects of cognitive performance in apes and in monkeys suggests that only rarely can we at this time demonstrate greater cognitive competence in the ape than in the monkey. Instead it seems that the ape's cognitive style differs qualitatively from that of the monkey: not in the direction of greater capacity (using this term as a measure of continuously increasing ability), but in the way that the ape applies itself to a novel situation. From this it would follow that the greater discontinuity lies between man and apes, not between apes and monkeys.
对猿类和猴类认知能力某些选定方面的综述表明，目前我们很少能证明猿类比猴类具有更强的认知能力。相反，猿类的认知风格似乎在质上与猴类不同：不是在能力更强的方向上（用这个术语来衡量持续增长的能力），而是在猿类应对新情况的方式上。由此可以推断，人与猿之间的不连续性更大，而不是猿与猴之间。
