دورية أكاديمية
أعرض في EDS

Curvature-processing domains in primate V4

التفاصيل البيبلوغرافية
العنوان: Curvature-processing domains in primate V4
المؤلفون: Rendong Tang, Qianling Song, Ying Li, Rui Zhang, Xingya Cai, Haidong D Lu
المصدر: eLife, Vol 9 (2020)
بيانات النشر: eLife Sciences Publications Ltd, 2020.
سنة النشر: 2020
المجموعة: LCC:Medicine
LCC:Science
LCC:Biology (General)
مصطلحات موضوعية: functional map, functional column, contour, macaque, ISOI, 2-photon imaging, Medicine, Science, Biology (General), QH301-705.5
الوصف: Neurons in primate V4 exhibit various types of selectivity for contour shapes, including curves, angles, and simple shapes. How are these neurons organized in V4 remains unclear. Using intrinsic signal optical imaging and two-photon calcium imaging, we observed submillimeter functional domains in V4 that contained neurons preferring curved contours over rectilinear ones. These curvature domains had similar sizes and response amplitudes as orientation domains but tended to separate from these regions. Within the curvature domains, neurons that preferred circles or curve orientations clustered further into finer scale subdomains. Nevertheless, individual neurons also had a wide range of contour selectivity, and neighboring neurons exhibited a substantial diversity in shape tuning besides their common shape preferences. In strong contrast to V4, V1 and V2 did not have such contour-shape-related domains. These findings highlight the importance and complexity of curvature processing in visual object recognition and the key functional role of V4 in this process.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2050-084X
العلاقة: https://elifesciences.org/articles/57502Test; https://doaj.org/toc/2050-084XTest
DOI: 10.7554/eLife.57502
الوصول الحر: https://doaj.org/article/ef74691baebf4f7c9d86d454c5f62fe8Test
رقم الانضمام: edsdoj.f74691baebf4f7c9d86d454c5f62fe8
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:2050084X
DOI:10.7554/eLife.57502