# How to get white matter tract anisotropy

**URL:** https://community.brain-map.org/t/how-to-get-white-matter-tract-anisotropy/4563
**Category:** Allen Human Brain Atlas
**Tags:** atlas-human-brain-adult
**Created:** [July 23, 2025, 6:18am UTC](https://community.brain-map.org/t/how-to-get-white-matter-tract-anisotropy/4563 "2025-07-23T06:18:48Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![bricoyle](https://avatars.discourse-cdn.com/v4/letter/b/9fc348/32.png) [@bricoyle](https://community.brain-map.org/u/bricoyle)
#### Post date: [July 23, 2025, 6:18am UTC](https://community.brain-map.org/t/how-to-get-white-matter-tract-anisotropy/4563/1 "2025-07-23T06:18:48Z")

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The Allen Brain Atlas contains valuable white matter tract data. How do we obtain white matter anisotropy, showing the direction of bundled axons?

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### Author: ![jeremyinseattle](https://yyz1.discourse-cdn.com/flex027/user_avatar/community.brain-map.org/jeremyinseattle/32/50_2.png) [@jeremyinseattle](https://community.brain-map.org/u/jeremyinseattle)
#### Post date: [August 11, 2025, 3:37pm UTC](https://community.brain-map.org/t/how-to-get-white-matter-tract-anisotropy/4563/2 "2025-08-11T15:37:46Z")

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Unfortunately, this is not something we have expertise on at the Allen Institute anymore as an institute. If we learn anything else, I’ll post it on the other related thread: [Bulk Download of Co-registered DTI and T1-weighted Brain Maps for White Matter Tract Analysis](https://community.brain-map.org/t/bulk-download-of-co-registered-dti-and-t1-weighted-brain-maps-for-white-matter-tract-analysis/4597).