Shawn

About Shawn

I am currently working in the lab as a Banting Postdoctoral Research Fellow, funded by the Social Sciences and Humanities Research Council of Canada. I will be investigating the role of testosterone in promoting prosocial and antisocial behaviours, and how the strength and direction of these relationships may change depending on social factors such as an individual's perceived or actual social status within society or their social group. My research approach incorporates techniques from experimental economics, social psychology, and psychopharmacology.

Background

BA Honours in Psychology (first class standing) - Brock University
MA in Psychology (Social/Personality Stream) - Brock University
PhD in Psychology (Social/Personality Stream) - Brock University

Publications

Refereed Journal Articles

Geniole, S.N., Procyshyn, T., Marley, N., Ortiz, T.L., Bird, B.M., Marcellus, A.L., Welker, K.M., Bonin, P.L., Goldfarb, B., Watson N.V. & Carré, J.M. (2019). Using a psychopharmacogenetic approach to identify the pathways through which - and people for whom - testosterone promotes human aggression. Psychological Science. doi: 10.1177/0956797619826970

MacDonald, K., Lustig, K., Geniole, S.N., McCormick, C.M., & Cote, K. (2019). Sleep restriction alters reactive aggressive behavior and its relationship with sex hormones. Aggressive Behavior. doi: 10.1002/ab.21809

Bird, B.M., Geniole, S.N., Procyshyn, T., Ortiz, T.L., Watson, N.V., & Carré, J.M. (2018). Effect of exogenous testosterone on cooperation depends on personality and time pressure. Neuropsychopharmacology. doi: 10.1038/s41386-018-0220-8

Geniole, S.N. & Carré, J.M. (2018). Human Social Neuroendocrinology: Review of the rapid effects of testosterone. Hormones and Behavior. doi: 10.1016/j.yhbeh.2018.06.001

MacDonell, E.T., Geniole, S.N., & McCormick, C.M. (2018). Force versus fury: Sex differences in the relationships among physical and psychological threat potential, the facial width-to-height ratio, and aggression. Aggressive Behavior, 44, 427-547. doi: 10.1002/ab.21771

Lieberz, K. A., Mueller-Engelmann, M., Bornefeld-Ettmann, P., Priebe, K., Weidmann, A., Fydrich, T., Geniole, S. N., McCormick, C. M., Rausch, S., Thome, J., & Steil, R. (2018). Detecting implicit cues of aggressiveness in male faces in revictimized female PTSD patients and healthy controls. Psychiatry Research, 267, 429-437. doi: 10.1016/j.psychres.2018.05.061

Lustig, K., Stoakley, E., MacDonald, K., Geniole, S.N., McCormick, C.M., & Cote, K.A. (2018). Sex hormones play a role in vulnerability to sleep loss on emotion processing tasks. Neurobiology of Sleep and Circadian Rhythms, 5, 94-104. doi: 10.1016/j.nbscr.2017.10.001

Welker, K.M., Roy, A.R.K., Geniole, S.N., Kitayama, S., & Carré, J.M. (2017). Taking risks for personal gain: An investigation of self-construal and testosterone responses to competition. Social Neuroscience. doi: 10.1080/17470919.2017.1407822
Bird, B.M., Geniole, S.N., Little, A.C., Moreau, B.J.P., Ortiz, T.L., Goldfarb, B., Bonin, P.L., & Carré, J.M. (2017). Does exogenous testosterone modulate men's ratings of facial dominance or trustworthiness? Adaptive Human Behavior and Physiology, 3, 365-385. doi:10.1007/s40750-017-0079-7

Lieberz, K. A., Windmann, S., Geniole, S. N., McCormick, C. M., Mueller-Engelmann, M., Gruener, F., Bornefeld-Ettmann, P., & Steil, R. (2017). The facial width-to-height ratio determines interpersonal distance preferences in the observer. Aggressive Behavior, 43, 460-470. doi: 10.1002/ab.21704

Geniole, S.N., MacDonell, E.T., & McCormick, C.M. (2017). The “threat premium” in economic bargaining. Evolution and Human Behavior, 38, 572-582. doi: 10.1016/ j.evolhumbehav.2016.12.004

Geniole, S.N., Bird, B.M., Ruddick, E.L., & Carré, J.M. (2017). Effects of competition outcome on testosterone concentrations in humans: An updated meta-analysis. Hormones and Behavior, 92, 37-50. doi: 10.1016/j.yhbeh.2016.10.002

Carré, J.C., Geniole, S.N., Ortiz, T.L., Bird, B.M., Videto, A., Bonin, P.L. (2017). Testosterone rapidly increases aggressive behavior in dominant and impulsive men. Biological Psychiatry, 82, 29-256. doi: 10.1016/j.biopsych.2016.06.009

Geniole, S. N., MacDonell, E. T., & McCormick, C. M. (2017) The Point Subtraction Aggression Paradigm as a laboratory tool for investigating the neuroendocrinology of aggression and competition. Hormones and Behavior, 92, 103-116. doi: 10.1016/j.yhbeh.2016.04.006

Geniole, S. N., David, J. P. F., Euzébio, R. F. R., Toledo, B. Z. S., Neves, A. I. M., & McCormick, C. M. (2016). Restoring land and mind: The benefits of an outdoor walk on mood are enhanced in a naturalized landfill area relative to its neighbouring urban area. Ecopsychology, 8, 107-120. doi: 10.1089/eco.2016.0005

Bird, M.B., Valeska, C., Welker, K.M., Zilioli, S., Maestripieri, D., Geniole, S.N., Carré, J.C. (2016). Does facial width-to-height ratio map onto variability in men's testosterone concentrations? Evolution and Human Behavior, 37, 392–398. doi: 10.1016/ j.evolhumbehav.2016.03.004

Geniole, S.N., Denson, T., Dixson, B. Carré, J.M. & McCormick, C.M. (2015). Evidence from meta-analyses of the facial width-to-height ratio as an evolved cue of threat. PLOS ONE, 10(7), e0132726. doi: 10.1371/journal.pone.0132726

Geniole, S.N., Cunningham, C.E., Keyes, A.E., Busseri, M.A., & McCormick, C.M. (2015). Costly retaliation is promoted by threats to resources in women and threats to status in men. Aggressive Behavior. ePub ahead of print. doi: 10.1002/ab.21589

Geniole, S.N. & McCormick, C.M. (2015). Facing our ancestors: Judgments of aggression are consistent and related to the facial width-to-height ratio in men irrespective of beards. Evolution and Human Behavior, 36(4), 279-285. doi: 10.1016/j.evolhumbehav. 2014.12.005

*Skorska, M.N., *Geniole, S.N., Vrysen, B.M., McCormick, C.M., & Bogaert, A.F. (2015). Facial structure predicts sexual orientation in both men and women. Archives of Sexual Behavior, 44(5), 1377-1394. doi: 10.1007/s10508-014-0454-4

Geniole, S.N., Molnar, D.S., Carré, J.M., McCormick, C.M. (2014). The facial width-to-height ratio shares stronger links with judgements of aggression than with judgements of trustworthiness. Journal of Experimental Psychology: Human Perception and Performance, 40(40), 1526 – 1541. doi: 10.1037/a0036732

Geniole, S.N., Keyes, A.E., Carré, J.C., & McCormick, C.M. (2014). Fearless dominance mediates the relationship between the facial width-to-height ratio and cheating. Personality and Individual Differences, 57, 59-64. doi: 10.1016/j.paid.2013.09.023

Geniole, S.N. & McCormick, C.M. (2013). Taking control of aggression: Perceptions of aggression suppress the link between perceptions of facial masculinity and attractiveness. Evolutionary Psychology, 11(5), 1027-1043.

Geniole, S.N., Busseri, M.A., & McCormick, C.M. (2013). Testosterone dynamics and psychopathic personality traits independently predict antagonistic behaviour towards the perceived loser of a competitive interaction. Hormones and Behavior, 64(5), 790-798. doi: 10.1016/j.yhbeh.2013.09.005

Cote, K.A., McCormick, C.M., Geniole, S.N., Renn, R.P., Macaulay, S.D. (2013). Sleep deprivation lowers reactive aggression and testosterone in men. Biological Psychology, 92(2), 249-256. doi: 10.1016/j.biopsycho.2012.09.011

Geniole, S.N., Keyes, A.E., Mondloch, C.J., Carré, J.M., & McCormick, C.M. (2012). Facing aggression: Cues differ for female and male faces. PLoS One, 7(1): e30366. doi: 10.1371/journal.pone.0030366.

Geniole, S.N., Carré, J.M., & McCormick, C.M. (2011). State, not trait, neuroendocrine function predicts costly reactive aggression in men after social exclusion and inclusion. Biological Psychology, 87(1), 137-145. doi:10.1016/j.biopsycho.2011.02.020.

Notes. *Joint first authorship.

Book chapter

Geniole, S.N. & Carré, C.M. (in press). Hierarchy and testosterone: How can testosterone promote upward mobility in status hierarchies? Oxford Handbook on Evolutionary Psychology and Behavioral Endocrinology. Oxford University Press: New York, NY.