Möbus, Claus and Lenk, Jan Ch. and Claasen, Arno and Özyurt, Jale and Thiel, Christiane M. (2010) Checking the Brain Mapping Hypothesis: Predicting and Validating BOLD Curves for a Complex Task Using ACT-R. In: Proceedings of the 10th International Conference on Cognitive Modeling. Drexel University Philadelphia, PA, Philadelphia, PA, pp. 163-168.


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John R. Anderson proposed a correspondence between ACT- R modules and brain regions (Brain Mapping Hypothesis). Using a paradigm requiring rule-based matching of chemical structures (pseudo formulae) with their respective names, we compared ACT-R-generated blood-oxygen-level dependent (BOLD) signal curves with BOLD curves obtained from functional Magnetic Resonance Imaging (fMRI) scans. We found significant correlations between ACT-R generated and human BOLD curves for sensory and motor modules and regions in particular, whereas a lack of significant results was observed for mappings between internal modules and regions. This result was ascribed to the fact that in contrast to Anderson’s studies, our subjects were not urged to follow a single strategy. Instead the task allowed them to construct their personal strategy within a constraint-based strategy space. Accordingly, the mapping hypothesis was tested strategy-specific. As subjects are generally not able to reliably identify their own in a retrospective manner, we used Response-Time (RT) data in combination with a Bayesian Belief Net to identify personal problem solving strategies.

Item Type: Book Section
Uncontrolled Keywords: Brain Mapping Hypothesis, ACT-R, BOLD-Curves, Complex Tasks
Subjects: Generalities, computers, information > Computer science, internet
Philosophy and psychology > Psychology
Technology, medicine, applied sciences > Engineering and machine engineering
Divisions: School of Computing Science, Business Administration, Economics and Law > Department of Computing Science
Date Deposited: 09 Apr 2014 08:15
Last Modified: 09 Apr 2014 08:15
URI: https://oops.uni-oldenburg.de/id/eprint/1827
URN: urn:nbn:de:gbv:715-oops-19083

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