ngroup identification: The sometimes happy thing about a poor economy and death. Journal of Experimental Social Psychology, 45(4), 635-646; Dvash, J, Gilam, G, Ben-Ze'ev, A, Hendler, T, & Shamay-Tsoory, S.G. (2010). The envious brain: The neural basis of social comparison. Human Brain Mapping. 31(11): 17