On the origin of line bisection error in hemianopia

被引：20

作者：

Zihl, Josef ^{[1
,2
]}

Saemann, Philipp ^{[2
]}

Schenk, Thomas ^{[3
]}

Schuett, Susanne ^{[3
]}

Dauner, Ruth ^{[1
]}

机构：

[1] Univ Munich, Dept Psychol, D-80802 Munich, Germany

[2] Max Planck Inst Psychiat, D-80804 Munich, Germany

[3] Univ Durham, Dept Psychol, Sci Labs, Durham DH1 3LE, England

来源：

NEUROPSYCHOLOGIA | 2009年 / 47卷 / 12期

关键词：

Line bisection; Hemianopia; Visual field; Adaptation; VISUAL-FIELD; VISUOSPATIAL ATTENTION; HOMONYMOUS HEMIANOPIA; UNILATERAL NEGLECT; HORIZONTAL SPACE; JUDGMENTS; PARIETAL; MISREPRESENTATION; REPRESENTATION; MODULATION;

D O I：

10.1016/j.neuropsychologia.2009.04.009

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

The contralesional line bisection error in hemianopia is a well-known clinical phenomenon. Its origin, however, is still unclear. We therefore investigated the causes of the hemianopic bisection error in 84 patients with unilateral homonymous hemianopia without visuospatial neglect. Our results suggest that the contralesional bisection error is neither a consequence of the visual field defect itself nor a manifestation of strategic adaptation of attention and eye movements into contralesional hemispace. Additional extrastriate brain injury, presumably to occipito-temporal areas including the occipital white matter, seems to be critical for the emergence of the contralesional bisection error that is frequently associated with but separable from homonymous hemianopia. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2417 / 2426

页数：10

共 49 条

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