Visual imagery in cerebral visual dysfunction
Visual imagery in cerebral visual dysfunction
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DOI：
10.1016/s0733-8619(02)00097-x
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发表时间：
2003-08-01
影响因子：
2.4
通讯作者：
Kosslyn, SM
中科院分区：
文献类型：
--
作者：
Ganis, G;Thompson, WL;Kosslyn, SM
脑损伤后会出现多种想象缺陷，但损伤部位与缺陷类型之间的关系并不简单或直接。脑损伤后表现的分离提供了关于图像处理系统的线索，但解释的困难促使在将这些发现映射到理论模型时要谨慎。神经成像技术，如PET和fMRI，打开了一个窗口，进入工作的大脑，并提供有价值的信息不容易通过研究的病人谁可能有缺陷超出那些可观察到的，并可能依赖于补偿和神经重组。随着我们对心理意象系统的理解越来越全面，诸如意象生成的偏侧性等问题可能会被证明过于粗糙和模糊。大脑是一个极其复杂的器官，即使是在一个有限的领域，如图像，它似乎以复杂和微妙的方式处理信息。
Many sorts of deficits in imagery follow brain damage, but the relation between the site of damage and the type, of deficit is not simple or straightforward. The dissociations in performance after brain damage provide hints regarding the processing system underlying imagery, but difficulties in interpretation urge caution in mapping these findings to theoretical models. Neuroimaging techniques, such as PET and fMRI, open a window into the working brain and offer valuable information not easily accessible through the study of patients who may have deficits beyond those observable and may rely on compensation and neural reorganization. As we come to understand the mental imagery system more fully, such issues as the laterality of image generation are likely to prove too coarse and vague. The brain is an enormously intricate organ, and even within a circumscribed domain such as imagery it seems to process information in complex and subtle ways.