Smith A T, Singh K D, Williams A L, Greenlee M W
Department of Psychology, Royal Holloway, University of London, Egham TW20 0EX, UK.
Cereb Cortex. 2001 Dec;11(12):1182-90. doi: 10.1093/cercor/11.12.1182.
Functional magnetic resonance imaging (fMRI) was used to estimate the average receptive field sizes of neurons in each of several striate and extrastriate visual areas of the human cerebral cortex. The boundaries of the visual areas were determined by retinotopic mapping procedures and were visualized on flattened representations of the occipital cortex. Estimates of receptive field size were derived from the temporal duration of the functional activation at each cortical location as a visual stimulus passed through the receptive fields represented at that location. Receptive fields are smallest in the primary visual cortex (V1). They are larger in V2, larger again in V3/VP and largest of all in areas V3A and V4. In all these areas, receptive fields increase in size with increasing stimulus eccentricity. The results are qualitatively in line with those obtained by others in macaque monkeys using neurophysiological methods.
功能磁共振成像（fMRI）被用于估计人类大脑皮层多个纹状和纹外视觉区域中每个区域神经元的平均感受野大小。视觉区域的边界通过视网膜拓扑映射程序确定，并在枕叶皮层的扁平化表示上可视化。感受野大小的估计值来自于视觉刺激通过该位置所代表的感受野时，每个皮层位置功能激活的持续时间。感受野在初级视觉皮层（V1）中最小。在V2中较大，在V3/VP中更大，在V3A和V4区域中最大。在所有这些区域中，感受野大小随着刺激离心率的增加而增大。这些结果在定性上与其他人使用神经生理学方法在猕猴身上获得的结果一致。
