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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Int J Imaging Syst Technol. 2012 Mar 1;22(1):81–96. doi: 10.1002/ima.22009

Figure 8. State Space Model for Mental Arithmetic.

Figure 8

The group-wise t-score maps are shown overlaid on axial slices of a high-resolution template brain image. Values t < 3 have masked out for clarity and the color-map shows values ranging from t = 3 to t = 16. Each row shows the activation maps corresponding to three phases (seeing, computing, responding) within a single trial of the task. Also displayed are the parametric modulations due to product-size effect during the seeing and computing phase, and the product-size and task-diffculty effects during the responding phase.