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Sara Levens, Ph.D. currently has be given a Courtesy Post-Doctoral appointment. Sara completed her Ph.D. in Psychology from New York University in New York City. She also holds a BA in Psychology from the University of California at Berkeley. Her past research has focused on emotions and decision making, neuroeconomics, emotional experiences and altruistic behavior. Young-Suk received his Bachelor's in Computer Science and Engineering from Korea University in 1997. He is currently pursuing his Master's in Software Engineering at Carnegie Mellon. Young-Suk has eleven years of IT consulting experience for Panamanian and Koreans organizations in such fields as telecommunication, finance, transportation, and government. He is also the founder and director of Cultraplus.net, a culture network for Panama.
Models that assume reliance on small samples of past experiences have
a large advantage over models that assume reliance on running averages
of the previous payoffs (like traditional reinforcement learning and
fictitious play models).
The difference between learning in market entry games, and learning
in individual choice tasks is not large. Indeed, the best models in
the current competition can be described as refinements of the best
models i n our previous competition that focused in individual repeated
choice task (see Erev et al., 2010).
Please go here to read the full announcement from the competition organizers. The Dynamic Decision Making Laboratory is also proud to announce the Instance-Based Learning Tool (IBLTool). The tool is our lab's effort to formalize the theoretical approach to modeling, and to make the Instance-Based Learning Theory shareable, generalizable, understandable, robust, communicable, and usable. The IBLTool provides a GUI framework to make your own cognitive models based in Instance-Based Learning Theory without needing to program and will interface with tasks written in any number of programming languages through socket protocols. The tool is currently available for download on our website. We would like to extend hearty thanks to both Ripta Pasay and Varun Dutt for their tremendous work done on the IBLTool. The IBLTool was also demonstrated at a tutorial to graduate students in Psychology and Mathematics at the Heidelberg University. We would like to thank all those that attended and made it a success. In the past year, the lab has been pursuing exciting and interesting new research directions with fMRI. In preparation of this, members of the lab pursued continuing education and engaged with possible new collaborators. At the beginning of the year, Hau-yu took a week-long course on fMRI data analysis with SPM8. Coty also recently attended the Fourth Annual Advanced Neuroimaging Summer Program at UCLA. Last month, Coty was invited to give a talk on the emerging field of decision neuroscience at the Interdisciplinary Symposium on Decision Neuroscience held at Temple University's Fox School of Business. Some of our preliminary findings for a recent fMRI project were also presented at the symposium by our collaborator in the project, Dr. Eric Walden from Texas Tech University. This project investigates trust in behavior as a function of eliciting theory of mind processing when playing the Trust Game opposite human and computer players. The lab also collaborated with Dr. Golnaz Tabibnia, also in the SDS department, to submit a grant proposal to the Army Research Institute to investigate an fMRI extension of our research on the socio-emotional factors of cooperative behavior. The other big project we are moving forward with is our grant with DTRA on the socio-cognitive factors of cooperative behavior like conflict resolution. In June, we headed a data collection effort with middle school/high school students in Israel using the PeaceMaker game. We are excited to have been afforded the opportunity to collect data from participants that live within the region of influence demonstrated in the PeaceMaker game to see how their personal experience with the conflict affects resolution in the game. As part of our bottom-up investigation of cooperative behavior, our lab developed new multiplayer initiatives of the classic Prisoner's Dilemma and Chicken game from game theory dubbed the "2x2 games." A collaborator, Ion Juvina, has additionally developed the Iterated Prisoner's Dilemma (IPD2) paradigm to capture the dynamics of power between groups of competing and cooperating individuals. The IPD2 features two levels of competition and cooperation both within and between groups of individuals. Our efforts with the 2x2 and IPD2 games also extends to computational modeling based on the Instance-Based Learning Theory. Our hope is to augment our cognitive theory of learning and performance with important factors of personality and social interaction.
Dutt, V., & Gonzalez, C. (in press). Why do we want to delay actions on climate change? Effects of probability and timing of climate consequences. Journal of Behavioral Decision Making. Gonzalez, C., & Martin, J. M. (in press). Dynamic decision making and cultural affiliation. In R. W. Proctor, S. Noff, & Y. Yih (Eds.), Cultural factors in systems design: Decision making and action. Boca Raton, FL: CRC Press. Gonzalez, C., Best, B., Healy, A., Bourne, L., & Kole, J. (2010). A cognitive modeling account of fatigue. Journal of Cognitive Systems Research, 12, 19-32. Gonzalez, C., & Madhavan, P. (in press). Heterogeneity during practice enhances detection of novel items. Journal of Cognitive Psychology. Brunstein, A., Gonzalez, C., Kanter, S. (in press). Effects of domain experience in the stock-flow failure. System Dynamics Review. doi: 10.1002/sdr.448 Brunstein, A. & Gonzalez, C. (in press). Preparing for novelty with diverse training. Applied Cognitive Psychology. doi: 10.1002/acp.1739 Gonzalez, C. (in press). Training decisions from experience with decision making games. In P. Durlach & A. M. Lesgold (Eds.), Adaptive technologies for training and education. Cambridge, UK: Cambridge University Press. Madhavan, P., & Gonzalez, C. (in press). The relationship between stimulus-response mappings and the detection of novel stimuli in a simulated luggage screening task. Theoretical Issues in Ergonomics Science. Gonzalez, C., & Saner, L. (in press). Thinking or feeling? Effects of decision making personality in conflict resolution. In J. V. Brinken, H. Konietzny, & M. Meadows (Eds.), Emotional gaming. Strater, L. D., Cuevas, H. M., Scielzo, S., Connors, E. S. Gonzalez, C., Ungvarsky, D, M., & Endsley, M. R. (2010). An investigation of technology-mediated ad hoc team operations: Consideration of components of situation awareness. In K. L. Mosier and U. M. Fischer (Eds.), Informed by knowledge: Expert performance in complex situations (pp. 149-164). London, UK: Psychology Press. Gonzalez, C., Czlonka, L. (2010). Games for peace: Empirical investigations with PeaceMaker. In J. Cannon-Bowers & C. Bowers (Eds.), Serious game design and development: Technologies for training and learning (pp. 134-149). Hershey, PA: IGI Global. Gonzalez, C., Thomas, R., & Madhavan, P. (2010). The effects of conjunctive search and response mappings on automatic performance in a complex visual task. In D. Andrews, R. P. Hers, M. B. Wolf (Eds.), Human factors issues in combat identification (pp. 85-98). Ashgate Publishing Limited. Young, M. D., Healy, A. F., Gonzalez, C., Dutt, V., & Bourne, L. E. Jr. (in press). Effects of training with added difficulties on RADAR detection. Applied Cognitive Psychology. doi: 10.1002/acp.1706 Kiziltas, S., Akinci, B., Gonzalez, C. (2010). Comparison of expert and novice cost estimators' behaviors in information pull and push methods. Canadian Journal of Civil Engineering, 37(2), 290-301.
Gonzalez, C., & Dutt, V. (2010). Instance-based learning models of training. In Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting. San Francisco, CA: Human Factors and Ergonomics Society. Gonzalez, C. (2010). Instance-based learning models of situation awareness and decision making. In Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting. San Francisco, CA: Human Factors and Ergonomics Society. Saner, L. D., Bolstad, C. A., Gonzalez, C. & Cuevas, H. M. (2010). Predicting shared situation awareness in teams: A case of differential SA requirements. To appear in Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting. San Francisco, CA: Human Factors and Ergonomics Society. Proctor, C. W., Yamaguchi, M., Gonzalez, C., & Dutt, V. (2010). Spatial compatibility effects in a complex task environment. In Proceedings of the American Psychological Association. Juvina, I., Martin, J., Lebiere, C., & Gonzalez, C. (2010). A game paradigm to study the dynamics of power. In the Proceedings of the 32nd Annual Conference of the Cognitive Science Society. Portland, OR: Cognitive Science Society. Gonzalez, C., Lebiere, C., Martin, J. M., & Juvina, I. (2010). Dynamic decision making games and conflict resolution. Paper presented at 3rd International Conference on Applied Human Factors and Ergonomics. Miami, FL. Gonzalez, C., & Martinez-Moyano, I. J. (2010). Stock-and-flow failure: Initial stock and priming. Paper presented at 28th International Conference of the System Dynamics Society. Seoul, South Korea. Martin, J. M., & Gonzalez, C. (2010). Cultural determinants of strategic bias: A study of conflict resolution in an interactive computer game. In Proceedings of the 3rd ACM International Conference on Intercultural Collaboration. Copenhagen, Denmark. Martin, J. M., & Gonzalez, C. (2010). The cultural determinants of strategic bias in conflict resolution. In Proceedings of the 23rd Annual Meeting of International Association for Conflict Management. Boston, MA. Available at SSRN: http://ssrn.com/abstract=1612834.
Members of the lab gave/will give the following presentations this year:
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The Dynamic Decision Making Laboratory is part of the Social and Decision Sciences Department, Carnegie Mellon University. For updates and comments, please email hauyuw@andrew.cmu.edu. |