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. 2019 Aug 23;224(8):2871–2882. doi: 10.1007/s00429-019-01938-1

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© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 2 — Hierarchical factor model portraying the relationship between [¹¹C]raclopride D2/3DR BP_ND in striatum, limbic system, and neocortex. The figure shows standardized factor loadings and factor correlations for this model. Pt putamen, Cd caudate, Hc hippocampus, Amy amygdala, FC frontal cortex, OC occipital cortex, TC temporal cortex, PC parietal cortex, L left hemisphere, R right hemisphere, e error. Errors represent hemisphere-specific variance and hemisphere-specific measurement error. For any indicator, the variance accounted for by its error term corresponds to one minus the square of its factor loading