[By: Victoria Licht]
For almost a year now I have been working on a study looking at prosociality in infants, specifically the development and their degree of understanding within it. At a young age, 3 months old, infants already display a strong preference for prosocial individuals over antisocial ones (Hamlin et al., 2007; Hamlin & Wynn, 2011). In this study we are investigating the role of individual differences in promoting and shaping understanding of prosocial and antisocial events. We evaluated 5 to 6-month-old infants in their ability to discriminate and prefer prosocial over antisocial individuals using several different methods ERP/EEG, behavioral measures (looking times and manual choice task), and we investigated through questionnaires whether temperament (Rothbart, 1981) and attachment (Condon et al., 2008) styles would affect the emergence of this ability. In total 26 infants were tested and analyzed in the behavioral measures; 7 infants achieved the sufficient number of trails per condition to be included in the ERP analysis.