Science. 1975 Feb 28;187(4178):752-3. doi: 10.1126/science.187.4178.752.
In a sequel to Project Washoe, chimpanzees are being taught American Sign Language from birth by humans who are fluent in the language, including persons who are themselves deaf or whose parents were deaf. The first two subjects began to use signs when they were 3 months old, and these early results indicate that the new conditions are significantly superior to the conditions of Project Washoe. More valid comparisons can now be made between the acquisition of language by children and by chimpanzees.
在沃肖计划的后续研究中，从出生起，人类就用美国手语来教黑猩猩，这些人类本身是手语流利的使用者，包括聋人或父母是聋人的人。前两个研究对象在 3 个月大时开始使用手语，这些早期的结果表明，新的条件明显优于沃肖计划的条件。现在可以在儿童和黑猩猩学习语言之间进行更有效的比较。
