Explore the groundbreaking insights into the brain’s connectivity revealed by dissecting the vertical associative fiber network of the temporoparietal area, a key to unlocking mysteries of human cognition and neurosurgical advancements.
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Parcellating the vertical associative fiber network of the temporoparietal area: Evidence from focused anatomic fiber dissections.
Drosos et al., Brain Spine 2024
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https://doi.org/10.1016/j.bas.2024.102759
This study delves into the intricate network of short association fibers within the temporoparietal (TP) region, a key area for sensory integration and high cognitive functions. Utilizing the Klinger’s freeze-thaw process and microdissection techniques on thirteen adult cadaveric hemispheres, researchers have identified two distinct layers of fibers. The superficial layer, known as the Stratum proprium intraparietalis (SP), connects the Superior Parietal lobule and Precuneal cortical areas to the lower regions of the Parietal lobe. Meanwhile, at the same dissection level, the IPL-TP fibers link the Inferior Parietal lobule with posterior Temporal cortical areas. Deeper still, parallel to the Arcuate fasciculus fibers, the SPL-TP fibers bridge the Superior Parietal lobule to posterior Temporal cortical areas. This study is the first of its kind to offer a comprehensive examination and propose a universal terminology for the vertical association fibers of the TP region, addressing previous gaps in understanding and terminology ambiguities.