@inbook {561816,
	title = {On the evolution of human motivation: The role of Social Prosthetic Systems},
	booktitle = {Evolutionary cognitive neuroscience},
	year = {2006},
	publisher = {MIT Press},
	organization = {MIT Press},
	address = {Cambridge, MA},
	abstract = {\&nbsp;},
	author = {Kosslyn, S. M.},
	editor = {S. M. Platek and T. K. Shackelford and Keenan, J. P.}
}
