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      Using a symbolic process model as input for model-based fMRI analysis: locating the neural correlates of problem state replacements.

      1 , ,
      NeuroImage
      Elsevier BV

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          Abstract

          In this paper, a model-based analysis method for fMRI is used with a high-level symbolic process model. Participants performed a triple-task in which intermediate task information needs to be updated frequently. Previous work has shown that the associated resource - the problem state resource - acts as a bottleneck in multitasking. The model-based method was used to locate the neural correlates of 'problem state replacements'. To analyze the fMRI data, we fit the computational process model to the behavioral data and regressed the model's activity against the fMRI data. The brain region responsible for the temporary representation of problem states, the inferior parietal lobule, and the brain region responsible for long-term storage of problem states, the inferior frontal gyrus were thus identified. These results show that model-based fMRI analyses can be performed using high-level symbolic cognitive models, enabling fine-grained exploratory fMRI research.

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          Author and article information

          Journal
          Neuroimage
          NeuroImage
          Elsevier BV
          1095-9572
          1053-8119
          Sep 01 2011
          : 58
          : 1
          Affiliations
          [1 ] Dept. of Artificial Intelligence, University of Groningen, AK Groningen, The Netherlands. jpborst@ai.rug.nl
          Article
          S1053-8119(11)00630-6
          10.1016/j.neuroimage.2011.05.084
          21703351
          f56d55b6-57e9-4096-a483-378c2e3f14b7
          History

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