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首页> 外文期刊>The European Journal of Neuroscience >Visual functions without the occipital lobe or after cerebral hemispherectomy in infancy.
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Visual functions without the occipital lobe or after cerebral hemispherectomy in infancy.

机译：婴幼儿无枕叶或脑半球切除术后的视觉功能。

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摘要

This paper investigates whether and to what extent vision with awareness is still possible in the whole visual field after loss of the occipital lobe of one or both cerebral hemispheres or after hemispherectomy in childhood. The visual functions of four children who suffered from unilateral or bilateral loss of the occipital lobe or who had been hemispherectomized were examined. The results show that even after unilateral loss of the striate and prestriate cortex the extent of the visual field may still be in the normal range. The residual visual functions may be mediated by intact extrastriate areas such as V5 and LO of the damaged cerebral hemisphere. It is also shown that even after complete hemispherectomy in early life the visual field may have a normal extent and that conscious visual perception in the whole visual field may be preserved. In hemispherectomized children, the remaining cerebral hemisphere or neural structures in the midbrain, including the superior colliculi and the praetectum, maybe able to mediate these visual functions.
机译：本文研究了在一个或两个大脑半球的枕叶丢失后或在儿童半球切除后，在整个视野中是否仍可以在一定程度上实现有意识的视力。检查了四名患有单侧或双侧枕叶缺失或半球切除术的儿童的视觉功能。结果表明，即使单侧丢失了纹状体和纹状体皮质，视野范围仍可能在正常范围内。残余的视觉功能可能由受损脑半球的完整纹状体区域（例如V5和LO）介导。还显示出即使在早期的完全半球切除术之后，视野也可能具有正常范围，并且可以保留整个视野中的有意识的视觉感知。在半球形切除的儿童中，中脑中剩余的大脑半球或神经结构，包括上丘骨和the骨，可能能够介导这些视觉功能。

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