3Davis, M. H. Empathy: A social psychological approach.Boulder: Westview Press,1996.
4Eisenberg, N.,& Strayer, J. Critical issues in the study of empathy. In N. Eisenberg, & J. Strayer (Eds.), Empathy andits development (pp. 3-13). New York: Cambridge University Press,1987.
5Levenson,R. W.,& Ruef, A. M. Empathy:A physiological substrate. Journal of Personality and Social Psychology, 1992,63,234-246.