Short R A, Graff-Radford N R
Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA.
Neurocase. 2001;7(4):331-7. doi: 10.1093/neucas/7.4.331.
Impaired color perception with relative preservation of form vision (achromatopsia) caused by cerebral lesions was first described over a century ago. However, for many years some researchers questioned the existence of an area of cerebral cortex apart from the primary visual cortex specialized in color processing. The development of sophisticated structural and functional neuroimaging techniques has allowed verification of the cortical structures important in color perception. We describe a case of a patient with impaired color perception in one hemifield of vision (hemiachromatopsia) and compare the localization of the lesion with previous cases described in the literature. These cases show that lesions of the ventromedial occipital cortex can impair color perception and leave form vision intact.
一个多世纪前首次描述了由脑损伤导致的颜色感知受损而形态视觉相对保留（色盲）的情况。然而，多年来一些研究人员质疑除了专门负责颜色处理的初级视觉皮层之外，是否存在一个专门的大脑皮层区域。先进的结构和功能神经成像技术的发展使得对颜色感知中重要的皮层结构进行验证成为可能。我们描述了一名患者在一个半视野中颜色感知受损（半侧色盲）的病例，并将病变的定位与文献中描述的先前病例进行比较。这些病例表明，枕叶内侧皮质的损伤会损害颜色感知，而形态视觉保持完好。
