Cortical magnification within human primary visual cortex correlates with acuity thresholds

被引：294

作者：

Duncan, RO ^{[1
]}

Boynton, GM ^{[1
]}

机构：

[1] Salk Inst Biol Studies, Syst Neurobiol Lab B, La Jolla, CA 92037 USA

来源：

NEURON | 2003年 / 38卷 / 04期

关键词：

D O I：

10.1016/S0896-6273(03)00265-4

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We measured linear cortical magnification factors in V1 with fMRI, and we measured visual acuity (Vernier and grating) in the same observers. The cortical representation of both Vernier and grating acuity thresholds in V1 was found to be roughly constant across all eccentricities. We also found a within-observer correlation between cortical magnification and Vernier acuity, further supporting claims that Vernier acuity is limited by cortical magnification in V1.

引用

页码：659 / 671

页数：13

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