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Sulcal Depth in the Medial Ventral Temporal Cortex Predicts the Location of a Place-Selective Region in Macaques, Children, and Adults.
Cerebral Cortex ( IF 3.7 ) Pub Date : 2020-09-21 , DOI: 10.1093/cercor/bhaa203
Vaidehi S Natu 1 , Michael J Arcaro 2, 3 , Michael A Barnett 3 , Jesse Gomez 4, 5 , Margaret Livingstone 2 , Kalanit Grill-Spector 1, 6, 7 , Kevin S Weiner 4, 5
Affiliation  

Abstract
The evolution and development of anatomical–functional relationships in the cerebral cortex is of major interest in neuroscience. Here, we leveraged the fact that a functional region selective for visual scenes is located within a sulcus in the medial ventral temporal cortex (VTC) in both humans and macaques to examine the relationship between sulcal depth and place selectivity in the medial VTC across species and age groups. To do so, we acquired anatomical and functional magnetic resonance imaging scans in 9 macaques, 26 human children, and 28 human adults. Our results revealed a strong structural–functional coupling between sulcal depth and place selectivity across age groups and species in which selectivity was strongest near the deepest sulcal point (the sulcal pit). Interestingly, this coupling between sulcal depth and place selectivity strengthens from childhood to adulthood in humans. Morphological analyses suggest that the stabilization of sulcal–functional coupling in adulthood may be due to sulcal deepening and areal expansion with age as well as developmental differences in cortical curvature at the pial, but not the white matter surfaces. Our results implicate sulcal features as functional landmarks in high-level visual cortex and highlight that sulcal–functional relationships in the medial VTC are preserved between macaques and humans despite differences in cortical folding.


中文翻译:

内侧腹侧颞叶皮层的沟深度可预测猕猴、儿童和成人的位置选择区域的位置。

摘要
大脑皮层解剖-功能关系的演变和发展是神经科学的主要兴趣所在。在这里,我们利用对视觉场景有选择性的功能区域位于人类和猕猴内侧腹侧颞叶皮层 (VTC) 的沟内这一事实来检查沟深度与不同物种的内侧 VTC 中的位置选择性之间的关系,以及年龄组。为此,我们对 9 只猕猴、26 名儿童和 28 名成人进行了解剖和功能磁共振成像扫描。我们的结果揭示了不同年龄组和物种的沟深度和位置选择性之间存在很强的结构 - 功能耦合,其中在最深的沟点(沟坑)附近选择性最强。有趣的是,沟深度和地方选择性之间的这种耦合在人类从童年到成年不断加强。形态学分析表明,成年后脑沟-功能耦合的稳定可能是由于脑沟随着年龄的增长而加深和面积扩大以及软脑膜皮质曲率的发育差异,而不是白质表面。我们的研究结果表明,脑沟特征是高级视觉皮层中的功能标志,并强调了尽管皮质折叠存在差异,但猕猴和人类之间仍保留了内侧 VTC 中的脑沟功能关系。形态学分析表明,成年后脑沟-功能耦合的稳定可能是由于脑沟随着年龄的增长而加深和面积扩大以及软脑膜皮质曲率的发育差异,而不是白质表面。我们的研究结果表明,脑沟特征是高级视觉皮层中的功能标志,并强调了尽管皮质折叠存在差异,但猕猴和人类之间仍保留了内侧 VTC 中的脑沟功能关系。形态学分析表明,成年后脑沟-功能耦合的稳定可能是由于脑沟随着年龄的增长而加深和面积扩大以及软脑膜皮质曲率的发育差异,而不是白质表面。我们的研究结果表明,脑沟特征是高级视觉皮层中的功能标志,并强调了尽管皮质折叠存在差异,但猕猴和人类之间仍保留了内侧 VTC 中的脑沟功能关系。
更新日期:2020-12-10
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