My research examines the social cognitive and neural processes that support collective life. To this end, the Group Processes Lab at Lehigh investigates conformity and dissent, intergroup relations, and moral evaluation and decision-making. We pay particular attention to processes that may mitigate against some of groups’ more harmful proclivities, including blind conformity to social norms, intergroup prejudice and moralistic aggression.
Packer, D. J., Fujita, K., & Chasteen, A. L. (in press). The motivational dynamics of dissent decisions: A goal conflict approach. Social Psychological and Personality Science.
Packer, D. J., Fujita, K., & Herman, S. (in press). Rebels with a cause: A goal conflict approach to understanding when conscientious people dissent. Journal of Experimental Social Psychology.
Packer, D. J., & Miners, C. T. H. (in press). Tough love: The normative conflict model of dissent. Social and Personality Psychology Compass.
Gill, M. J., Packer, D. J., & Van Bavel, J. J. (2013). More to morality than mutualism: Consistent contributors exist and they can inspire costly generosity in others. [Commentary on N. Baumard, J. Andre & D. Sperber, 'A mutualistic approach to morality']. Behavioral and Brain Sciences.
Cunningham, W. A., Van Bavel, J. J., Arbuckle, N. L., Packer, D. J., & Waggoner, A. S. (2012). Rapid social perception is flexible: Approach and avoidance motivational states shape P100 responses to other-race faces. Frontiers in Human Neuroscience.
Packer, D. J., & Miners, C. T. H. (2012). At the first sign of trouble, or through thick and thin? When nonconformity is and is not disengagement from a group. Journal of Experimental Social Psychology, 48, 316-322.
Packer, D. J. (2012). Conformity and obedience. Invited article for V. S. Ramachandran (Ed.)., Encyclopedia of Human Behavior, 2nd Edition.
Van Bavel, J. J., Packer, D. J., & Cunningham, W. A. (2011). Modulation of the Fusiform Face Area following minimal exposure to motivationally relevant faces: Evidence of in-group enhancement (not out-group disregard). Journal of Cognitive Neuroscience, 23, 3343-3354.
Packer, D. J., Chasteen, A. L., & Kang, S. K. (2011). Facing social identity change: Interactive effects of current and projected collective identification on expectations regarding future self-esteem and psychological well-being. British Journal of Social Psychology, 50, 414-430.
Kesek, A., Cunningham, W. A., Packer, D. J., & Zelazo, P. D. (2011). Indirect goal priming is more powerful than explicit instruction in children. Developmental Science, 14, 944-948.
Packer, D. J., (2011). The dissenter's dilemma, and a social identity solution. In J. Jetten & M. J. Hornsey (Eds.), Rebels in Groups: Dissent, Deviance, Difference, and Defiance. Wiley- Blackwell.
Packer, D. J., & Chasteen, A. L. (2010). Loyal deviance: Testing the normative conflict model of dissent in social groups. Personality and Social Psychology Bulletin, 36, 5-18.
Packer, D. J. (2010). The interactive influence of Conscientiousness and Openness to Experience on dissent. Social Influence, 5, 202-219.
Remedios, J., Chasteen, A. L., & Packer, D. J. (2010). Sunny side up: The reliance on positive age stereotypes in descriptions of future older selves. Self and Identity, 9, 257-275.
Packer, D. J. & Cunningham, W. A. (2009). Neural correlates of reflection on goal states: The role of regulatory focus and temporal distance. Social Neuroscience, 4, 412-425.
Packer, D. J. (2009). Avoiding groupthink: Whereas weak identifiers remain silent, strong identifiers dissent about collective problems. Psychological Science, 20, 546-548.
Van Bavel, J. J., Packer, D. J., & Cunningham, W. A. (2008). The neural substrates of ingroup bias: An fMRI investigation. Psychological Science, 19, 1131-1139.
Packer, D. J. (2008). On being both with us and against us: A normative conflict model of dissent in social groups. Personality and Social Psychology Review, 12, 50-72.
Packer, D. J. (2008). Identifying systematic disobedience in Milgram's obedience experiments: A meta-analytic review. Perspectives on Psychological Science, 4, 301-304.
Cunningham, W. A., Zelazo, P. D., Packer, D. J., & Van Bavel, J. J. (2007). The iterative reprocessing model: A multi-level framework for attitudes and evaluation. Social Cognition, 25, 736-760.
Packer, D. J., & Chasteen, A. L. (2006). Looking to the future: How possible aged selves influence prejudice toward older adults. Social Cognition, 24, 218-247.
Baccus, J. R., Baldwin, M. W., & Packer, D. J. (2004). Increasing implicit self-esteem through classical conditioning. Psychological Science, 15, 498-502.