A. Sanfey et al., “The Neural Basis of Economic Decision-Making in the Ultimatum Game,” Sci 300 (2003): 1755. Также см. работы: J. Moll et al., “Human Front-Mesolimbic Networks Guide Decisions About Charitable Donation,” PNAS 103 (2006): 15623; W. Harbaugh et al., “Neural Responses to Taxation and Voluntary Giving Reveal Motives for Charitable Donations,” Sci 316 (2007): 1622.