Theory of Mind and Radical Behaviorism

"Theory of Mind" has been one of the hottest topics in philosophical psychology and developmental psychology for the last 25 years. There are occasional ripples of interest in research at the intersection of ToM and comparative psychology, including a recent ripple generated by the release of a documentary "Project Nim". The documentary covers the story of Nim Chimpsky, who was part of a multi-decade study lead by Herb Terrace, intended to illuminate chimpanzee's linguistic abilities. The documentary focuses on ethical issues and on the narrative story arc of Nim's life. Herb has complained that the documentary under-emphasizes the scientific side of Nim's story --- which they the director interviewed him about extensively, then cut --- and has been attempting to remind people about the scientific importance of the study, emphasizing:

Nim’s inability to learn a language deepened our understanding of the basic difference between human and ape minds. Most important, apes lack a “theory of mind” – the ability to perceive what another ape is thinking.