Last Updated
6/10/2008
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Angelika Dimoka
RESEARCH INTERESTS My research has three major streams: (1) Modeling of Information Pathways in the Brain (2) Functional Neuroimaging and Applications to Social Sciences, and (3) Quantitative Analysis of Online Marketplaces The first research stream – which is based on my Ph.D. dissertation – has focused on modeling neural functionality in the brain with the emphasis on the hippocampus. The hippocampus is the brain area that underlies higher cognitive functions, such as learning and memory. Using brain imaging, neuroscience, experimental, and mathematical modeling techniques, we have modeled the three major information pathways of the hippocampus and their neuronal interactions. The resulting model helps us identify the underlying brain regions that guide learning and memory functions. The second research stream is in an interdisciplinary research area where brain imaging, engineering, neuroscience, marketing, and information systems (IS), are used to understand consumer decision making. Neuroimaging can provide reliable measures of hidden knowledge and unconscious thoughts and perceptions. The objective of this study is to link specific areas of brain activation with both perceptual (e.g., beliefs, attitudes, and intentions) and observable variables (e.g., decisions, choices, and behavior). The third research stream, in collaboration with information systems (IS) researchers, seeks to understand and mitigate uncertainty in online auction marketplaces (such as eBay) by building trustworthy mechanisms. We integrate technical, economic, and quantitative analysis to comprehensively examine the nature and role of seller and product quality uncertainty on prices of used products in online markets. RESEARCH TOPICS
SELECTED PUBLICATIONS (1) Modeling of Information Pathways in the Brain Dimoka A., Courellis S.H., Marmarelis V.Z., Berger T.W. (2008), “Modeling the Nonlinear Dynamic Interactions of Afferent Pathways in the Dentate Gyrus of the Hippocampus” Annals of Biomedical Engineering, 36, 5, 852-864 Dimoka A., Gholmieh G., Courellis S.H., Marmarelis V.Z., Berger T.W. (2008), “Modeling the Nonlinear Properties of the in vitro Hippocampal Perforant Path-Dentate System using Multi-Electrode Array Technology,” IEEE Transactions on Biomedical Engineering, 55, 2, 693-702. Gholmieh G., Courellis S., Dimoka A., Wills J.D., LaCoss J., Granacki J.J., Marmarelis V., Berger T. (2004), “An algorithm for real-time extraction of population EPSP and population spike amplitudes from hippocampal field potential recordings,” Journal of Neuroscience Methods, 136, 2, 111-121. Dimoka A., Courellis S.H., Marmarelis V.Z., Berger T.W. (2008) “Nonlinear dynamic interactions among the lateral, the medial perforant path, and the commissural fibers of the dentate gyrus, and their effect on granule cell output” (under review in Brain Research Methods) Dimoka A., Courellis S.H., Marmarelis V.Z., Berger T.W. (2006) “Modeling the Nonlinear Dynamic Interactions of the Lateral and the Medial Perforant Path of the Hippocampal Dentate Gyrus,” Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, New York, NY, September 1-3Dimoka A., Courellis S.H., Marmarelis V.Z., Berger T.W. (2004) “A biomimetic electronic prosthetic for hippocampus: nonlinear multi-input model applied to the lateral and the medial perforant pathways of the hippocampal dentate gyrus,” Proceedings of the 34th Annual Meeting of the Society for Neuroscience, San Diego, CA. October. Dimoka A., Courellis S.H., Marmarelis V.Z., Berger T.W. (2003) “Nonlinear dynamic interactions among the lateral and the medial perforant path, and the commissural fibers of the hippocampal dentate gyrus, and their effect on granule cell output,” Proceedings of the 33rd Annual Meeting of the Society for Neuroscience, New Orleans, LA. November. Dimoka A., Courellis S.H., Song D., Marmarelis V.Z., Berger T.W. (2003) “Identification of the Lateral and Medial Perforant Path of the Hippocampus Using Single and Dual Random Impulse Train Stimulation,” Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Cancun, Mexico, September. Dimoka A., Courellis S.H., Marmarelis V.Z., Berger T.W. (2002) “Nonlinear dynamic interactions between the medial and lateral perforant path and their effect on granule cell output,” Proceedings of the 32nd Annual Meeting of the Society for Neuroscience, Orlando, FL, November. Dimoka A., Singh M., Sungkarat W., Jeong J., MacDonald M., Henderson V. (2000) "Event-Related fMRI of a Digit Ordering Working Memory Task Requiring Verbal Response," Proceedings of the 8th Scientific Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine, Denver, Colorado April.
(2) Functional Neuroimaging and Applications to Social Sciences Dimoka A., Pavlou P.A., and Davis F. (2007), “Neuro-IS: The Potential of Cognitive Neuroscience for Information Systems Research,” Proceedings of the 27th International Conference on Information Systems (ICIS), Montreal, Canada, December 11-14. Dimoka A., Pavlou P.A., and Davis F. (2007), “From Neuroeconomics
to Neuro-IS: How Neuroeconomics Can Inform Information Systems
Research.” Proceeding of the 2007 Workshop
on Information Systems Economics (WISE),
Montreal, Canada Dimoka A., Pavlou P.A., Yeh B., Sungkarat W., and Singh M. (2007) “Using fMRI To Localize Brain Regions In Human Perception And Decision: A Novel Experimental Approach,” Proceedings of the Biomedical Engineering Society Annual Meeting, Los Angeles, CA, September 26-29. Dimoka A., Pavlou P.A. and Davis F. (2008), “Neuro-IS: The Potential of Cognitive Neuroscience for Information Systems Research - A Research Agenda,” (under review in Information Systems Research). Dimoka A., Pavlou P.A. and Singh M. (2008), “The neural correlates of trust and uncertainty in online transactions,” (under preparation for submission to NeuroImage).
(3) Quantitative Analysis of Online Marketplaces Pavlou P.A. and Dimoka A. (2006), "The Nature and Role of Feedback Text Comments in Online Marketplaces: Implications for Trust Building, Price Premiums, and Seller Differentiation,” Information Systems Research, 17, 4, 391-412 Dimoka A. and Pavlou P.A. (2008), “Understanding and Mitigating Product Uncertainty in Online Marketplaces,” (under review in Information Systems Research). Pavlou P.A., Lie T. and Dimoka A. (2008), “An Integrative Model of Mobile Commerce Adoption,” (under review in MIS Quarterly). Pavlou P.A., Dimoka A., Housel T. (2008), “Effective Leveraging of Collaborative IT Tools: Nature, Antecedents, and Consequences,” (under preparation for submission to Information Systems Research). Pavlou P.A., Dimoka A. and Housel T.J. (2008), “Effective Use of Collaborative IT Tools: Nature, Antecedents, and Consequences, Proceedings of the 41st Hawaii International Conference of System Sciences (HICSS), Hawaii, January 7-10. Pavlou P.A., Lie T., and Dimoka A. (2007), “An Integrative Model of Mobile Commerce Adoption,” Proceedings of the Conference on Information Systems and Technology (CIST/INFORMS), Seattle, WA, November 3-4. Pavlou P.A., Dimoka A., and Housel T.J (2007), “Leveraging Capability of Collaborative Tools,” Proceedings of the Academy of Management Conference, Philadelphia, PA, August 3-8.
Dimoka A. and Pavlou P.A. (2006) “Product Quality Uncertainty in
Online Auction Marketplaces: Overcoming Adverse Product Selection with
Price Premiums” Proceedings of the 12th
Americas Conf. on Information Systems, Acapulco,
Mexico, August 9-11. |
