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Healthy adult human brain viewed from behind, tractography

Henrietta Howells, NatBrainLab

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Attribution 4.0 International (CC BY 4.0)

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Credit: Healthy adult human brain viewed from behind, tractography. Credit: Henrietta Howells, NatBrainLab. Attribution 4.0 International (CC BY 4.0)


About this work

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Connections in the brain of a healthy 29 year old female human viewed from the back (posterior view). The top of the brain is at the top of the image. Brain cells communicate with each other through these nerve fibres, which have been visualised using diffusion imaging tractography. Diffusion weighted imaging is a specialised type of magnetic resonance imaging (MRI) scan which measures water diffusion in many directions in order to reconstruct the orientation of bundles of axons. Tractography is used to indirectly model these bundles of axons (nerve fibres), which transmit information between cortical regions at the brain's surface. For example, connections travelling between the two sides of the brain (hemispheres) which make up the corpus callosum are visible. The brain measures approximately 18 cm from front to back.



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