Yao Jewelia K, Choo Justin, Finzi Dawn, Grill-Spector Kalanit
Department of Psychology, Stanford University, Stanford, CA 94305.
Department of Symbolic Systems, Stanford University, Stanford, CA, 94305.
bioRxiv. 2025 Jan 14:2025.01.14.633067. doi: 10.1101/2025.01.14.633067.
Reading, face recognition, and navigation are supported by visuospatial computations in category-selective regions across ventral, lateral, and dorsal visual streams. However, the nature of visuospatial computations across streams and their development in adolescence remain unknown. Using fMRI and population receptive field (pRF) modeling in adolescents and adults, we estimate pRFs in high-level visual cortex and determine their development. Results reveal that pRF location, size, and visual field coverage vary across category, stream, and hemisphere in both adolescents and adults. While pRF location is mature by adolescence, pRF size and visual field coverage continue to develop - increasing in face-selective and decreasing in place-selective regions - alongside similar development of category selectivity. These findings provide a timeline for differential development of visual functions and suggest that visuospatial computations in high-level visual cortex continue to be optimized to accommodate both category and stream demands through adolescence.
阅读、人脸识别和导航由腹侧、外侧和背侧视觉流中类别选择性区域的视觉空间计算支持。然而，跨视觉流的视觉空间计算的本质及其在青春期的发展仍然未知。通过对青少年和成年人使用功能磁共振成像（fMRI）和群体感受野（pRF）建模，我们估计了高级视觉皮层中的pRF，并确定了它们的发展情况。结果显示，青少年和成年人的pRF位置、大小和视野覆盖范围在类别、视觉流和半球之间存在差异。虽然pRF位置在青春期已成熟，但pRF大小和视野覆盖范围仍在继续发展——在面部选择性区域增加，在位置选择性区域减少——同时类别选择性也有类似的发展。这些发现为视觉功能的差异发展提供了一个时间线，并表明高级视觉皮层中的视觉空间计算在整个青春期继续进行优化，以适应类别和视觉流的需求。
