December 3, 2008
- Movellan J., Messinger D., Todorov E., de Sa V., Stewart Bartlett M. (2007) ,Developing Social Robots National Science Foundation IIS-INT2-Large Proposal 0808767
- John Watson (1972) Smiling, Cooing and “The Game” Merril-Palmer Quarterly, 18, 323–339.
- John S. Watson (2005) The Elementary Nature of Purposive Behavior: Evolving Minimal Neural Structures that Display Intrinsic Intentionality Evolutionary Psychology, 3, 24-28
- Javier R. Movellan (2008) A Pneumatic Cylinder Model