association system

(redirected from association tract)

as·so·ci·a·tion sys·tem

groups or tracts of nerve fibers interconnecting different regions of a single major subdivision of the central nervous system, such as the various areas of the cerebral cortex or the various segments of the spinal cord.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Time-by-medication-by-age interaction effects were identified in several association tracts of the left hemisphere and in the lateral aspect of the truncus of the corpus callosum in voxel-based analysis due to a greater increase in FA in MPH-treated boys.
These structures are located primarily within the left prefrontal cortex (behind the forehead), left temporal cortex (behind the ear) and left parietal cortex (at the top rear of the head) and in "white matter association tracts" that connect them.
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