Long-term effects of prism adaptation in chronic visual neglect: A single case study
Long-term effects of prism adaptation in chronic visual neglect: A single case study
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DOI：
10.1080/02643290500202755
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发表时间：
2006-05-01
影响因子：
3.4
通讯作者：
Riddoch, MJ
中科院分区：
文献类型：
--
作者：
Humphreys, GW;Watelet, A;Riddoch, MJ
我们调查了长期训练的影响，使用棱镜适应慢性忽视患者。棱镜适应的积极影响是显而易见的视觉空间处理（取消，平分，和把握）的测试，但没有任何好处忽视对词的contralesional侧或检测嵌合面孔的左侧的错误检测。在整个训练过程中，适应对即时表现的好处减少了，但在适应后90分钟内测试表现时，适应的好处增加了。有益的效果保持到1年后的培训。在后来的会议上也有增加的负面影响后，棱镜适应，随着训练的进展。数学认知测试没有改善，这包括该患者的独立缺陷。这些数据表明，长时间的棱镜训练可以诱导视觉映射的长期适应性空间重新排列，改善忽视的某些方面。我们讨论的影响，康复忽视和理解忽视综合征更普遍。
We investigated the effects of long-term training using prism adaptation on a patient with chronic neglect. A positive effect of prism adaptation was apparent on tests of visuo-spatial processing (cancellation, bisection, and grasping), but there was no benefit for neglect on the detection of errors on the contralesional side of words or on the detection the left side of chimeric faces. Across training sessions, the benefit of adaptation on immediate performance decreased, but it increased across sessions and within sessions when performance was tested up to 90 minutes after adaptation. The beneficial effect was maintained up to 1 year posttraining. In later sessions there were also increased negative after-effects following prism adaptation, as training progressed. There was no improvement on tests of mathematical cognition, which comprised an independent deficit in this patient. The data suggest that prolonged prism training can induce long-term adaptive spatial realignment of visuomotor mappings, ameliorating some aspects of neglect. We discuss the implications for the rehabilitation of neglect and for understanding the neglect syndrome more generally.