Multimodal and multispatial deficits of verticality perception in hemispatial neglect.
Identifieur interne : 001A51 ( Ncbi/Checkpoint ); précédent : 001A50; suivant : 001A52Multimodal and multispatial deficits of verticality perception in hemispatial neglect.
Auteurs : K S Utz [Allemagne] ; I. Keller ; F. Artinger ; O. Stumpf ; J. Funk ; G. KerkhoffSource :
- Neuroscience [ 1873-7544 ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- physiology : Space Perception, Visual Perception.
- physiopathology : Brain Injuries, Perceptual Disorders.
- Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged.
Abstract
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.
DOI: 10.1016/j.neuroscience.2011.04.068
PubMed: 21596103
Affiliations:
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Keller</name></author><author><name sortKey="Artinger, F" sort="Artinger, F" uniqKey="Artinger F" first="F" last="Artinger">F. Artinger</name></author><author><name sortKey="Stumpf, O" sort="Stumpf, O" uniqKey="Stumpf O" first="O" last="Stumpf">O. Stumpf</name></author><author><name sortKey="Funk, J" sort="Funk, J" uniqKey="Funk J" first="J" last="Funk">J. Funk</name></author><author><name sortKey="Kerkhoff, G" sort="Kerkhoff, G" uniqKey="Kerkhoff G" first="G" last="Kerkhoff">G. Kerkhoff</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2011">2011</date><idno type="doi">10.1016/j.neuroscience.2011.04.068</idno><idno type="RBID">pubmed:21596103</idno><idno type="pmid">21596103</idno><idno type="wicri:Area/PubMed/Corpus">000E63</idno><idno type="wicri:Area/PubMed/Curation">000E63</idno><idno type="wicri:Area/PubMed/Checkpoint">000D01</idno><idno type="wicri:Area/Ncbi/Merge">001A51</idno><idno type="wicri:Area/Ncbi/Curation">001A51</idno><idno type="wicri:Area/Ncbi/Checkpoint">001A51</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Multimodal and multispatial deficits of verticality perception in hemispatial neglect.</title><author><name sortKey="Utz, K S" sort="Utz, K S" uniqKey="Utz K" first="K S" last="Utz">K S Utz</name><affiliation wicri:level="3"><nlm:affiliation>International Research Training Group 1457 "Adaptive Minds," Saarland University, Building A1.3, 66123 Saarbruecken, Germany. k.utz@mx.uni-saarland.de</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>International Research Training Group 1457 "Adaptive Minds," Saarland University, Building A1.3, 66123 Saarbruecken</wicri:regionArea><placeName><region type="land" nuts="2">Sarre (Land)</region><settlement type="city">Sarrebruck</settlement></placeName></affiliation></author><author><name sortKey="Keller, I" sort="Keller, I" uniqKey="Keller I" first="I" last="Keller">I. Keller</name></author><author><name sortKey="Artinger, F" sort="Artinger, F" uniqKey="Artinger F" first="F" last="Artinger">F. Artinger</name></author><author><name sortKey="Stumpf, O" sort="Stumpf, O" uniqKey="Stumpf O" first="O" last="Stumpf">O. Stumpf</name></author><author><name sortKey="Funk, J" sort="Funk, J" uniqKey="Funk J" first="J" last="Funk">J. Funk</name></author><author><name sortKey="Kerkhoff, G" sort="Kerkhoff, G" uniqKey="Kerkhoff G" first="G" last="Kerkhoff">G. Kerkhoff</name></author></analytic><series><title level="j">Neuroscience</title><idno type="eISSN">1873-7544</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Aged</term><term>Aged, 80 and over</term><term>Brain Injuries (physiopathology)</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Perceptual Disorders (physiopathology)</term><term>Space Perception (physiology)</term><term>Visual Perception (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Space Perception</term><term>Visual Perception</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Brain Injuries</term><term>Perceptual Disorders</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Aged</term><term>Aged, 80 and over</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">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.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country><region><li>Sarre (Land)</li></region><settlement><li>Sarrebruck</li></settlement></list><tree><noCountry><name sortKey="Artinger, F" sort="Artinger, F" uniqKey="Artinger F" first="F" last="Artinger">F. Artinger</name><name sortKey="Funk, J" sort="Funk, J" uniqKey="Funk J" first="J" last="Funk">J. Funk</name><name sortKey="Keller, I" sort="Keller, I" uniqKey="Keller I" first="I" last="Keller">I. Keller</name><name sortKey="Kerkhoff, G" sort="Kerkhoff, G" uniqKey="Kerkhoff G" first="G" last="Kerkhoff">G. Kerkhoff</name><name sortKey="Stumpf, O" sort="Stumpf, O" uniqKey="Stumpf O" first="O" last="Stumpf">O. Stumpf</name></noCountry><country name="Allemagne"><region name="Sarre (Land)"><name sortKey="Utz, K S" sort="Utz, K S" uniqKey="Utz K" first="K S" last="Utz">K S Utz</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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