My research interests are in human visual perception, with a particular focus on face processing and adaptation. I use a combination of behavioural psychophysics and electroencephalography (EEG) to infer the neural mechanisms underlying face coding and determine how they are affected by our past experiences.
I completed my PhD in Psychology in 2015 at Macquarie University, Sydney, Australia, under the supervision of Dr. Kevin Brooks. From 2015 through 2017 I was employed as a Postdoctoral Scholar under the supervision of Drs. Michael Webster and Fang Jiang at the University of Nevada, Reno, USA. Since returning to Australia I have been working Postdoctoral Research Associate at Flinders University under the supervision of Dr. Michael Nicholls.
Gwinn, O. S., Matera, C., O’Neil, S. F., & Webster, M. A. (2018). Asymmetric neural responses for expressions, anti-expressions, and neutral faces. Neuropsyhcologia, 119, 405-416.
Gwinn, O. S., & Brooks, K. R. (2015). Face encoding is not categorical: Consistent evidence across multiple types of contingent aftereffects. Visual Cognition, 23(7), 867-893.
Gwinn, O. S., & Brooks, K. R. (2015). No role for lightness in the neural encoding of black and white: race-contingent face aftereffects depend on facial morphology, not skin tone. VisualCognition, 23(5), 597-611.
Gwinn, O. S., & Brooks, K. R. (2013). Race-contingent face aftereffects: A result of perceived racial typicality, not categorization. Journal of Vision, 13(10), 1–11.
Gwinn, O. S., & Brooks, K. R. (2010). A Face in the Crowd: Examining Race Perception and Lightness Contrast. In W. Christensen, E. Schier, and J. Sutton (Eds.), ASCS09: Proceedings of the 9th Conference of the Australasian Society for Cognitive Science (p. 119-125).
Brooks, K. R., & Gwinn, O. S. (2010). No role for lightness in the perception of black and white? Simultaneous contrast affects perceived skin tone, but not perceived race. Perception, 39(8), 1142-1145.
I am currently completing my PhD in the Brain and Cognition Laboratory at Flinders University, under the supervision of Professor Mike Nicholls and Dr Nicole Thomas. I am very interested in social perception, and the first impressions that we make about others based upon their facial appearance. Most of my work has focused on judgments of attractiveness and trustworthiness. My most recent research has been investigating ensemble perception, and the way that irrelevant faces in a group scene can influence the first impressions made about a single face of interest.