FMA 75241 | ||
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Latin Fibrae associationis telencephali TA A14.1.00.016A14.1.09.553 | ||
Association fibers are axons that connect cortical areas within the same cerebral hemisphere.
Contents
In human neuroanatomy, axons within the brain, called fibers, can be categorized on the basis of their course and connection into association fibers, projection fibers, and commissural fibers.
The association fibers unite different parts of the same cerebral hemisphere, and are of two kinds: (1) those connecting adjacent gyri, short association fibers; (2) those passing between more distant parts, long association fibers.
Short association fibers
Many of the short association fibers (also called arcuate or "U"-fibers) lie immediately beneath the gray substance of the cortex of the hemispheres, and connect together adjacent gyri. Some pass from one wall of the sulcus to the other.
Long association fibers
The long association fibers connect the more widely separated gyri and are grouped into bundles. They include the following:
Diffusion tensor imaging is a non-invasive method to study the course of association fibers.