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.