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
Kerkhoff
中科院分区:
医学3区
文献类型:
--
作者:
Keller;Artinger;Stumpf;Kerkhoff

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最近的证据表明,左侧视觉空间忽视的患者往往表现出偏差,在他们的视觉和触觉知觉垂直额状面和矢状面。然而,鲜为人知的是,这些障碍的多模态之间的关系,在额状面和矢状面的偏差。此外,没有以前的研究结合调查的垂直判断在两种方式和空间平面内使用相同的仪器相同的样本的主题。因此,本研究的目的是调查主观视觉垂直(SVV)和主观触觉垂直(SHV)的判断,在额叶和矢状面的右脑损伤患者的视觉空间忽视(n=16),右脑损伤患者没有忽视(n=18)和年龄匹配的健康个体(n=16)使用相同的测试设备的所有任务。这允许直接比较视觉与触觉以及额面与矢状面垂直度判断。Nesternal患者在额状面的SVV和SHV判断中显示出显著的逆时针倾斜,在矢状面也显示出明显的向后倾斜(杆的上端朝向观察者)。相比之下,右脑损伤的患者没有忽视和健康的人没有表现出显着的偏差,在额状面,但小向前(杆的上端远离观察者)倾斜在矢状面。此外,忽视患者在所有任务中都表现出显著更高的无符号错误。这些结果表明,多模态和多空间赤字的垂直度的判断与视觉空间忽视的患者,这是最有可能的是由于改变代表性的垂直度所造成的病变相关的多感觉整合和空间的代表性在右颞顶叶皮层的脑区。
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: --
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影响因子: --
作者:
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Fels, M. 和 Geissner, E. (1997)。忽视测试 (NET) - Ein Verfahren zur Erfassung neglectphänomene, (2., korrigierte Aufl.)。
DOI: 10.1026//0084-5345.28.4.298
发表时间: 1999
影响因子: 1.1
作者:
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通讯作者: B. Leplow
DOI: 10.1001/archneur.1978.00500300038006
发表时间: 1978-01-01
影响因子: --
作者:
BENTON, AL;VARNEY, NR;HAMSHER, KD
通讯作者: HAMSHER, KD
右半球行程中俯仰和横滚的主观视觉垂直
DOI: --
发表时间: 2005
期刊: Stroke
影响因子: 8.3
作者:
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通讯作者: M. Rousseaux