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Published April 15, 2022 | Version v1
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Chimpanzee and Human Gray Matter Masks

  • 1. Institute of Neuroscience and Medicine (INM-7) Research Centre Jülich, Jülich, Germany

Description

Gray matter (GM) mask for human and chimpanzee structural T1-weighted magnetic resonance imaging (MRI) scans 

The human mask was created using the GM tissue segment map from the CAT12 (Computational Anatomy Toolbox) tissue probability map (TPM) and shooting template. Using a probability threshold of 0.2 voxels within both segment maps were included in the mask. Finally, single voxels that did not touch any other voxel were removed during clean up. 

The chimpanzee GM mask was created using the chimpanzee TPM (Vickery et al., 2020) provided with CAT12.7+ at a GM probability threshold of 0.3.

The human GM mask is provided at a resolution of 1.5mm and 3mm while the chimpanzee GM mask at a resolution of 1mm and 2mm. We also provide a cortex GM mask containing the cerebral cortex and basal ganglia for both species with the cerebellum and brain stem removed. 

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