|Academic Profile |
| || |
Assoc Prof Georgios Christopoulos
Associate Professor, College of Business (Nanyang Business School)
|*Update*: Please go to https://sites.google.com/site/labdeon/home for my lab webpage|
I hold a PhD from University of Cambridge in cognitive neuroscience of human decision making. My background is in psychology (B.Sc.) and economic psychology (M.Sc). During my studies at Cambridge we identified various brain responses characterizing decision making under risk. Specifically, a signal at an area called right DLPFC changed according to differences in individual’s risk aversion (Journal of Neuroscience, 2009). Using brain signals we were able to predict individual choices on a trial-by-trial basis. In other studies (PNAS, 2009; JofN, 2010) we identified how the brain distorts value and probabilities. Following Cambridge I moved to Baylor College of Medicine and then to Virginia Tech to work with Brooks King-Casas at the Laboratory for Interpersonal Decision Making, where I explored neural correlates of social decision making in normal populations, the effects of pharmacology on social learning and learning parameters as influenced by psychopathology and addiction.
|*********Update*: Please go tohttps://deonlabblog.wordpress.com/ for my lab webpage|
Broadly, I am interested in exploring the mechanisms that describe and/or affect behavioral and neuronal responses while humans make decisions, especially in social settings. This is of course a very general question that encompasses very diverse topics such as:
- Individual decision making (deciding on the absence of social information. Risk is one of my main interests)
- Social decision making and strategic interactions (deciding while other agents are socially visible and present: allocation of resources; competition and cooperation, learning)
- Organizational Neuroscience (organizations are the ecology of the modern human; I am interested in how the structure of organizations influences biology and vice versa)
Coming to Singapore and NBS I found an environment with outstanding expertise in Cultural Psychology; my aim is to integrate this expertise with my interests.
Special emphasis should be given to the methods. I try to integrate different approaches aiming in exploring mechanisms while moving away from simple descriptive approaches, which while interesting are not anymore adequate to help us understand and predict behavior. To that aim I use:
- Behavioral experiments and game-theoretic inspired approaches modeling social interactions and decision making.
- Computational Modeling
- Biological and genetic measures (eye-tracking, skin conductance etc)
- Functional Magnetic Resonance Imaging to encode brain responses
1. Christopoulos G, Kokkinaki F, Harvey N., Sevdalis N, (Accepted) Paying for no reason? (Mis-)perceptions of product attributes in separate versus joint product evaluation. Journal of Economic Psychology
2. Christopoulos GI, Tobler pn. Bossaerts, P, Dolan RK, Schultz W (2009) Neural correlates of value, risk and risk aversion contributing to decision making under risk. Journal of Neuroscience, Oct 7, 2009, 29(40):12574-12583.
3. Tobler PN, Christopoulos GI, O'Doherty JP, Dolan RJ, Schultz W.(2009) Risk-dependent reward value signal in human prefrontal cortex. PNAS U S A. Apr 28;106(17):7185-90.
4. Tobler PN, Christopoulos GI, O'Doherty JP, Dolan RJ, Schultz W. (2008) Neuronal distortions of reward probability without choice. Journal of Neuroscience. Nov 5;28(45):11703-11.
- Analysis of attitudes towards Beauty and Beauty Counter Behavioral Modeling
- Biological and Behavioral accounts of social choice behavior
- Cooperation, Partner Selection, And Homophily In Social Networks Experiments
- Discovering the Cognitive and Neurological Basis of Cultural Competence
- Future Resilient Systems
- Neurobehavioural Responses to Complexity
- Psychological, health and social parameters associated with working in underground spaces
- The Face Of Beauty: Asian Face Judgement Mechanisms
- The Face of Success: Examining the Impact of Executive Beauty Capital on Corporate Performance in China, Singapore, Taiwan and the United States
- Toward Learning-based Thermal Comfort Models to Instill Behavioural Changes for Greener, Smarter and Healthier Buildings in the Tropics Via Pervasive Sensing
- Roberts, A.C., Yap, H.S., Kwok, K.W., Car, J., Soh, C.-K., Christopoulos, G.I. (2019). The cubicle deconstructed: Simple visual enclosure improves perseverance. Journal of Environmental Psychology, 63, 60-73.
- Christopoulos, G., Uy, M. A., & Yap, W. J. (2019). The body and the brain: Measuring skin conductance responses to understand the emotional experience. Organizational Research Methods, 22(1), 394-420.
- Roberts AC, Christopoulos GI, Yap HS, Car J, Kwok KW, Soh CK. (2018). Attention and vigilance: A large scale workplace study. 20th Congress International Ergonomics Association.
- Chan E, Yeap YW, Roberts AC, Seah HS, Soh CK, Christopoulos GI. (2018). Virtual Reality System for Psychological Testing of Environmental Factors. Association for Psychological Science.
- Roberts AC, Yap HS, Soh CK, Christopoulos GI. (2018). Challenging replication studies: Cognitive responses vary with the physical environment. Association for Psychological Science.