Discourse Impairments Following Right Hemisphere Brain Damage: A Critical Review.
Discourse Impairments Following Right Hemisphere Brain Damage: A Critical Review.
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DOI：
10.1111/j.1749-818x.2008.00094.x
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发表时间：
2008-11
影响因子：
2.5
通讯作者：
Traxler MJ
中科院分区：
文献类型：
--
作者：
Johns CL;Tooley KM;Traxler MJ
右半球脑损伤（RHD）很少导致失语症，其特征是明显和广泛的理解障碍或难以产生流利的语言。尽管如此，轻微的语言理解缺陷可能发生在单侧RHD之后。在这篇文章中，我们回顾了右半球损伤后话语功能的经验记录，以及关注右半球功能的非脑损伤个体的相关工作。该评论分为四个部分，重点是话语处理，推理，幽默和非字面语言。虽然右半球在语言处理中扮演的确切角色，以及两个大脑半球协调语言过程的确切方式仍然存在争议，但我们的评论表明，右半球在管理推断或暗示的信息中发挥着关键作用，通过保持相关信息和/或抑制无关信息。这些机制中的一个或两个缺陷可能会导致RHD后的话语缺陷。
Right hemisphere brain damage (RHD) rarely causes aphasias marked by clear and widespread failures of comprehension or extreme difficulty producing fluent speech. Nonetheless, subtle language comprehension deficits can occur following unilateral RHD. In this article, we review the empirical record on discourse function following right hemisphere damage, as well as relevant work on non-brain damaged individuals that focuses on right hemisphere function. The review is divided into four sections that focus on discourse processing, inferencing, humor, and non-literal language. While the exact role that the right hemisphere plays in language processing, and the exact way that the two cerebral hemispheres coordinate their linguistic processes are still open to debate, our review suggests that the right hemisphere plays a critical role in managing inferred or implied information by maintaining relevant information and/or suppressing irrelevant information. Deficits in one or both of these mechanisms may account for discourse deficits following RHD.