Academic Profile

Academic Profile

Asst Prof Charles Or

Assistant Professor, School of Social Sciences

Asst Prof Charles Or

PhD (Psychology), York University, Canada, 2011
MPhil (Psychology), The University of Hong Kong, 2005
BCogSc, The University of Hong Kong, 2003

Dr. Or obtained his Bachelor's degree in Cognitive Science at The University of Hong Kong. There he was also awarded a Master's degree in visual psychophysics by studying the interaction of motion and form information in the perception of "Glass patterns". He earned his Ph.D. in the Centre for Vision Research and the Department of Psychology at York University, Canada. His dissertation work studied discrimination and memory of face viewpoint and face identity through psychophysical experiments with synthetic face stimuli. Before joining NTU, he worked at University of California, Santa Barbara and University of Louvain, Belgium, where he conducted face perception research using techniques including eye movement monitoring and electroencephalography (EEG).
Research Interests
Dr. Or's research focuses on visual perception of faces, motion, and form, using electrophysiology, psychophysics, and computational modelling as tools. Currently, he is investigating how face detection and face identification can be accomplished rapidly under various circumstances, such as varying viewing angles and the presence of colour, using a novel and objective paradigm of fast periodic visual stimulation during recording of high-density scalp electroencephalograms (EEG). He is also interested in studying cultural variations in visual perception.
Current Projects
  • A New Look At The Unbalanced Nature Of Holistic FacePerception By Means Of Behavioural, Eye Movement AndPeriodic Visual Stimulation Studies In Electrophysiology
  • Learning to make better Confidence Judgments: Is such Learning Transferable to new Situations?
  • Perception of faces in dim light conditions
  • Perceptual Continuity across Eye blinks in Virtual Reality
  • Understanding human face detection: Behavioural and electrophysiological investigations
Selected Publications
  • Or, C. C.-F., & Rossion, B. (2019). Category-selective response to periodic face stimulations in natural-image sequence degrades nonlinearly with face omissions. Journal of Vision, in press.
  • Or, C. C.-F., Retter, T. L., & Rossion, B. (2019). The contribution of color information to rapid face categorization in natural scenes. Journal of Vision, 19(5), 1-20.
  • Liu, J., Or, C. C.-F., & Rossion, B. (2018). Spatiotemporal dynamics of view-invariant face identity perception. Journal of Vision, 18(10), 1080.
  • Or, C. C.-F., Liu-Shuang, J., & Rossion, B. (2017). Spatiotemporal dynamics of view-sensitive & view-invariant face identity processing. Journal of Vision, 17(10), 262.
  • Or, C. C.-F., Liu-Shuang, J., & Rossion, B. (2016). Spatiotemporal dynamics of view-sensitive and view-invariant face identity processing. Perception, 45(S2), 26-27.

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