Association fibers of the brain
Last revised by Daniel J Bell on 21 Apr 2021
Citation, DOI, disclosures and article data
Citation:
Al Kabbani A, Bell D, Association fibers of the brain. Reference article, Radiopaedia.org (Accessed on 30 Apr 2024) https://doi.org/10.53347/rID-72869
Permalink:
rID:
72869
Article created:
13 Dec 2019,
Ayla Al Kabbani ◉
Disclosures:
At the time the article was created Ayla Al Kabbani had no recorded disclosures.
View Ayla Al Kabbani's current disclosures
Last revised:
21 Apr 2021,
Daniel J Bell ◉
Disclosures:
At the time the article was last revised Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosures
Revisions:
3 times, by
2 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Intrahemispheric tracts
- Association fibre
- Intrahemispheric tract
- Association tracts
- Association tracts of the brain
Association fibers of the brain, also known as association tracts of the brain or intrahemispheric tracts (cortex-cortex connections 1) are a type of white matter tract that connects different areas in the same hemisphere. There are two types of association fibers: long-range and U-fibers (short-range) 1.
DTI tractography can identify the following long range tracts
- arcuate fasciculus (connections between the Broca, Geschwind and Wernicke areas 2): contains long-range and short-range fibers that connect the frontal, parietal and temporal lobes 3
- superior and inferior fronto-occipital fasciculi
- cingulum (limbic system fibers) 1
- uncinate fasciculus
- superior and inferior longitudinal fasciculi
References
- 1. Wakana S, Jiang H, Nagae-Poetscher LM, van Zijl PC, Mori S. Fiber tract-based atlas of human white matter anatomy. (2004) Radiology. 230 (1): 77-87. doi:10.1148/radiol.2301021640 - Pubmed
- 2. Catani M, Mesulam M. The arcuate fasciculus and the disconnection theme in language and aphasia: history and current state. (2008) Cortex; a journal devoted to the study of the nervous system and behavior. 44 (8): 953-61. doi:10.1016/j.cortex.2008.04.002 - Pubmed
- 3. Tremblay P, Dick AS. Broca and Wernicke are dead, or moving past the classic model of language neurobiology. (2016) Brain and language. 162: 60-71. doi:10.1016/j.bandl.2016.08.004 - Pubmed
- 4. Kenichi Oishi, Andreia V. Faria, Peter C. M. van Zijl, Susumu Mori. MRI Atlas of Human White Matter. (2010) ISBN: 9780123820815
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