Multimodal and multispatial deficits of verticality perception in hemispatial neglect
Multimodal and multispatial deficits of verticality perception in hemispatial neglect
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半侧空间忽视中垂直知觉的多模态和多空间缺陷
DOI:
10.1016/j.neuroscience.2011.04.068
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发表时间:
2011
期刊:
影响因子:
3.3
通讯作者:
Kerkhoff
中科院分区:
文献类型:
--
作者:
Keller;Artinger;Stumpf;Kerkhoff
Recent evidence suggests that patients with left-sided visuospatial neglect often show deviations in their visual and haptic perception of verticality in the frontal and sagittal plane. However, little is known about the multimodality of these impairments and the relationship between deviations in the frontal and the sagittal plane. Moreover, no previous study has combined investigations of verticality judgments in both modalities and both spatial planes within the same sample of subjects using the same apparatus. Thus, the aim of the present study was to investigate both subjective visual vertical (SVV) and subjective haptic vertical (SHV) judgments in the frontal and the sagittal plane in right-brain-damaged patients with visuospatial neglect (n=16), right-brain-damaged patients without neglect (n=18) and age-matched healthy individuals (n=16) using the same testing device for all tasks. This allowed for direct comparisons of visual vs. haptic and frontal vs. sagittal verticality judgments. Neglect patients showed significant counterclockwise tilts in their SVV and SHV judgments in the frontal plane as well as marked backward (upper end of the rod towards the observer) tilts in the sagittal plane. In contrast, right-brain-damaged patients without neglect and healthy individuals showed no marked deviations in the frontal plane, but small forward (upper end of the rod away from the observer) tilts in the sagittal plane. Moreover, neglect patients showed significantly higher unsigned errors in all tasks. These results demonstrate multimodal and multispatial deficits in the judgment of verticality in patients with visuospatial neglect which are most likely due to an altered representation of verticality caused by lesions of brain areas related to multisensory integration and space representation in the right temporo-parietal cortex.
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DOI:
10.1007/s00115-009-2811-4
发表时间:
2009
期刊:
Der Nervenarzt
影响因子:
--
作者:
Prof. Dr. G. Kerkhoff;C. Marquardt
通讯作者:
C. Marquardt
DOI:
10.1111/j.1749-6632.1999.tb09193.x
发表时间:
1999-01-01
期刊:
OTOLITH FUNCTION IN SPATIAL ORIENTATION AND MOVEMENT
影响因子:
--
作者:
Brandt, T;Dieterich, M
通讯作者:
Dieterich, M
DOI:
10.1026//0084-5345.28.4.298
发表时间:
1999
影响因子:
1.1
作者:
B. Leplow
通讯作者:
B. Leplow
影响因子:
--
作者:
BENTON, AL;VARNEY, NR;HAMSHER, KD
通讯作者:
HAMSHER, KD
影响因子:
8.3
作者:
A. Saj;J. Honoré;T. Bernati;Y. Coello;M. Rousseaux
通讯作者:
M. Rousseaux