Abstract
Psychological explanations of how behavior is acquired are compared between the US and pre- and post-Soviet. The comparison is drawn in terms of communist theories of 1-way and 2-way dialectical materialism. Evidence is brought to bear that physiological, necessary and sufficient interpretations , not only still exist in the former Soviet, but--for reasons other than communist theory--are on the upswing in the US. An advantage of America's more open society is that investigators are encouraged to challenge existing theories. An experimental example is described in which conditioning influences underlying neurology, thereby demonstrating that the relation is not just unidirectional. While such findings are important, they do not diminish the need for psychology to maintain its own enterprise. 2012 APA, all rights reserved)