Photo of Sean Duffy and cat

A.B., A.M., Ph.D., The University of Chicago.
Post-Doc, The University of Michigan.

Office: Armitage 345 Rutgers-Camden 311 N. 5th St Camden NJ
email:  I do not have an office phone.

Research Areas: Memory, Decision making, Culture and cognition, Spatial reasoning in infancy and childhood, Environmental psychology, many projects with my Economics colleague John Smith

(Photo of me with Roza, the cat who always interrupts my zoom meetings because she thinks she is going to play mice for cats on my computer.). 

Want to know what Camden NJ is really like? Watch this!



Fall 2018: Intro to Psych, Method and Theory
Spring 2019: Method and Theory (2 sections)
Fall 2019: Introduction to Psychology, Method and Theory
Spring 2020: Environmental, Grad Environmental Psychology
Summer 2020: Cultural Psychology of Food
Fall 2020: Child Psychology, Method and Theory
Winter 2021: Environmental Psychology
Spring 2021: Statistics for Social Sciences (2 sections)
Summer 2021: Cultural Psychology of Food
Fall 2021: Child Psych, Graduate Research Methods
Winter 2022: Environmental Psychology
Spring 2022: Graduate Developmental Science, Environmental Psychology
Summer 2022: Cultural Psychology of Food
Fall 2022: Child Psychology, Graduate Statistics
Winter 2023: Environmental Psychology
Spring 2023: Statistics for Social Sciences (2 sections)
Summer 2023: Environmental Psychology; Cultural Psychology of Food
Fall 2023: Sabbatical Leave (Will miss you all!)
Spring 2024: Statistics for Social Sciences, Honors College course: Inherit the Winds: Environmental, Cultural, and Technological Challenges and Opportunities posed by Offshore Wind Energy in New Jersey

OFF SHORE WIND: A project to be completed soon, ten lectures on Off Shore Wind energy in New Jersey. If you would like to be added to my canvas site on this project please feel free to contact me at 

MUSIC PAGE: Please click here for free recordings and sheet music of carillon (cathedral/church bell) music I arranged and composed


Stochastic choice and imperfect perception (a long term series of projects with economist John Smith

Maybe people are Bayesian, but probably not. (“The Bayes Craze”) with John Smith

Discriminating artificial intelligence from human intelligence (with grad student K. Wisniewski) 

Psychology of transgender and gay and lesbian lives (with graduate students  J. Snyder and G. Grady)

Cognitive processes underlying Automatic Imitation (with C. Bouquet and R. van Der Wel)

Psychology of sustainability (a long term interest that serves the basis of my course Environmental Psychology)

Culture, psychology, and food (a long term interest that serves the basis for my course The Cultural Psychology of Food).

History of Art, Music and Photography (another long term interest that served the basis for my course The Psychology of Art and Music). 

Psychology of Humor (a course I developed and taught for many years)


Please see John Smith’s site for several works in progress or under review 

Krassner, M., Duffy, K., Wiesniewski, K., August, A., & Duffy, S. (in prep). A century of smiles: Changes in emotional expression in portrait photography 1920-2020.

Bouquet, C., van der Wel, R., Lafleur, M., & Duffy, S. Reglation of automatic imitation: Domain specific versus domain general control processes. 

Duffy, S., & Bouquet, C. (in prep). Gender differences in preferences for humor produced by men or women. 

RECENT PAPERS (email me if you would like a pdf copy or go to my google scholar page): 

Duffy, S., Hertel, J., Igan, D., Pinhiero, M., & Smith, J. (2022) Bayesian integration in sensorimotor learning: Another look at Kording and Wolpert (2004). Cortex, 153, 87-96.

Duffy, S., Gussman, S.,& Smith, J. (2021) Visual judgments of length in the economics laboratory: Are there brains in stochastic choice? Journal of Behavioral and Experimental Economics, 93,163-193.

Duffy, S., & Smith, J. (2020) On the category adjustment model: Another look at Huttenlocher, Hedges, and Vevea (2000). Mind and Society, 19, 163-193.

Duffy, S., & Smith, J. (2020) Omitted-variable bias and other matters in the defense of the category adjustment model: A comment on Crawford (2019). Journal of Behavioral and Experimental Economics, 85: 101501. 

Duffy, S., & Smith, J. (2018). Category effects on stimulus estimation: Shifting and skewed frequency distributions-A reexamination. Psychonomic Bulletin and Review, 25, 1740-1750.

Duffy, S. (2017). Cognitive development. In K. Nadal (Ed.) The Sage Encyclopedia of Psychology and Gender. (pp. 306-309). Thousand Oaks, CA: Sage Publications.

Jonas, K. J., Cesario, J., Alger, M., Bailey, A. H., Bombari, D., Carney, D., Dovidio, J. F., Duffy, S., Harder, J. A., van Huistee, D., Jackson, B., Johnson, D. J., Keller, V. N., Klaschinski, L., LaBelle, O., LaFrance, M., Latu, I. M., Morssinkhoff, M., Nault, K., Pardal, V., Pulfrey, C., Rohleder, N., Ronay, R., Smart Richman, L., Schmid Mast, M., Schnabel, K., Schröder-Abé, M. & Tybur, J. M. (2017).  Power poses – where do we stand?Comprehensive Results in Social Psychology, 2, 139-141.

Latu, I. M., Duffy, S., Pardal, V. & Alger M. (2017). Power vs. persuasion: Can open body postures embody openness to persuasion? Comprehensive Results in Social Psychology, 2, 68-80.

Allred, S., Crawford, L.E., Duffy, S. & Smith, J. (2016) Working memory and spatial judgments: Cognitive load increases the central tendency bias. Psychonomic Bulletin and Review, 23, 1825-1831.

Allred, S., Duffy, S., & Smith, J. (2016). Cognitive load and strategic sophistication. Journal of Economic Behavior & Organization, 125, 162-178.

Duffy, S., Smith, J., & Woods, K. (2015). How does the preference for increasing payments depend on the size and source of the payments? Management Science Letters, 5, 1071-1080.

Duffy, S. & Smith, J. (2014). Cognitive load in the multiple player prisoner’s dilemma game: Are there brains in games?. Journal of Behavioral and Experimental Economics, 51, 47-56.

Duffy, S., Hartwig, T., & Smith, J. (2014) Costly and discrete communication: An experimental investigation. Theory and Decision, 76, 395-415.

Duffy, S. & Smith, J. (2013). Preference for increasing wages: How do people value various streams of income? Judgment and Decision Making, 8, 74-90.

See my Google Scholar page for links to all published articles.