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. Author manuscript; available in PMC: 2021 Oct 1.
Published in final edited form as: Cortex. 2020 Jul 15;131:1–16. doi: 10.1016/j.cortex.2020.06.013

Figure 2. MD activity and behavior.

Figure 2.

(a) Surface projection of the volumetric anatomical masks used to constrain individual-specific functional activations. (b) Surface projection of the volumetric unthresholded group average activation map (beta estimates) for the spatial WM Hard>Easy (H>E) contrast. Please note that all analyses were performed in volume space, and surface projections—here and in other figures—are for illustrative purposes only and may include slight distortions resulting from volume-to-surface transformations. (Surface projection was performed using Connectome Workbench (humanconnectome.org/software/connectome-workbench) function “-volume-to-surface-mapping” using trilinear interpolation and a MNI reconstructed mid-thickness surface and displayed on an inflated HCP surface (https://balsa.wustl.edu/reference/show/pkXDZ).) (c) Pearson correlation (see text for highly similar Spearman values) between MD regions for the H>E contrast, computed across individuals (n = 216). (d) Stability of MD H>E effect sizes across runs across individuals (n = 216). (e) MD H>E effect sizes and behavior relationship: larger MD H>E effect sizes are associated with better accuracy (left) and faster RTs (middle) in the spatial WM task (n = 216), as well as higher IQ scores (n = 114) (right) as measured by an independent test (KBIT).