Illusory misidentifications and cortical hypometabolism in Parkinson's disease
Identifieur interne : 000295 ( Main/Exploration ); précédent : 000294; suivant : 000296Illusory misidentifications and cortical hypometabolism in Parkinson's disease
Auteurs : Toshiyuki Ishioka [Japon] ; Kazumi Hirayama [Japon] ; Yoshiyuki Hosokai [Japon] ; Atsushi Takeda [Japon] ; Kyoko Suzuki [Japon] ; Yoshiyuki Nishio [Japon] ; Yoichi Sawada [Japon] ; Shoki Takahashi [Japon] ; Hiroshi Fukuda [Japon] ; Yasuto Itoyama [Japon] ; Etsuro Mori [Japon]Source :
- Movement Disorders [ 0885-3185 ] ; 2011-04.
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- KwdEn :
Abstract
Idiopathic Parkinson's disease (PD) is associated with documented impairments in various visual functions. However, there have been only a limited number of studies that have reported on the brain regions responsible for impairment of visual recognition in PD. In our study, we evaluated the performance of PD patients and 24 healthy controls on the Poppelreuter‐type overlapping figure identification test to investigate the impairment of visual recognition. We also measured the PD patients' resting cerebral glucose metabolism using 18F‐fluorodeoxyglucose positron emission tomography and investigated the relationship between the impairment of visual recognition and cortical hypometabolism. The PD patients had substantial and frequent illusory responses in the overlapping figure identification test, and their illusory misidentifications were correlated with hypometabolism in the visual cortices, including the right inferior temporal gyrus and the bilateral temporo‐parieto‐occipital junction. These findings suggest that PD patients have impaired visual recognition characterized by illusory misidentifications of visual stimuli, which could be attributed to dysfunction of the visual cortices. © 2011 Movement Disorder Society
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DOI: 10.1002/mds.23576
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Disord.</title><idno type="ISSN">0885-3185</idno><idno type="eISSN">1531-8257</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2011-04">2011-04</date><biblScope unit="volume">26</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="page" from="837">837</biblScope><biblScope unit="page" to="843">843</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">12009A3BF3762C39FF3F9C6EDC3CE65C608FB8C2</idno><idno type="DOI">10.1002/mds.23576</idno><idno type="ArticleID">MDS23576</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Parkinson's disease</term><term>illusory misidentification</term><term>overlapping figure identification test</term><term>positron emission tomography</term><term>visual cortices</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Idiopathic Parkinson's disease (PD) is associated with documented impairments in various visual functions. However, there have been only a limited number of studies that have reported on the brain regions responsible for impairment of visual recognition in PD. In our study, we evaluated the performance of PD patients and 24 healthy controls on the Poppelreuter‐type overlapping figure identification test to investigate the impairment of visual recognition. We also measured the PD patients' resting cerebral glucose metabolism using 18F‐fluorodeoxyglucose positron emission tomography and investigated the relationship between the impairment of visual recognition and cortical hypometabolism. The PD patients had substantial and frequent illusory responses in the overlapping figure identification test, and their illusory misidentifications were correlated with hypometabolism in the visual cortices, including the right inferior temporal gyrus and the bilateral temporo‐parieto‐occipital junction. These findings suggest that PD patients have impaired visual recognition characterized by illusory misidentifications of visual stimuli, which could be attributed to dysfunction of the visual cortices. © 2011 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Japon</li></country><region><li>Région de Tōhoku</li></region><settlement><li>Sendai</li></settlement><orgName><li>Université du Tōhoku</li></orgName></list><tree><country name="Japon"><noRegion><name sortKey="Ishioka, Toshiyuki" sort="Ishioka, Toshiyuki" uniqKey="Ishioka T" first="Toshiyuki" last="Ishioka">Toshiyuki Ishioka</name></noRegion><name sortKey="Fukuda, Hiroshi" sort="Fukuda, Hiroshi" uniqKey="Fukuda H" first="Hiroshi" last="Fukuda">Hiroshi Fukuda</name><name sortKey="Hirayama, Kazumi" sort="Hirayama, Kazumi" uniqKey="Hirayama K" first="Kazumi" last="Hirayama">Kazumi Hirayama</name><name sortKey="Hosokai, Yoshiyuki" sort="Hosokai, Yoshiyuki" uniqKey="Hosokai Y" first="Yoshiyuki" last="Hosokai">Yoshiyuki Hosokai</name><name sortKey="Itoyama, Yasuto" sort="Itoyama, Yasuto" uniqKey="Itoyama Y" first="Yasuto" last="Itoyama">Yasuto Itoyama</name><name sortKey="Mori, Etsuro" sort="Mori, Etsuro" uniqKey="Mori E" first="Etsuro" last="Mori">Etsuro Mori</name><name sortKey="Nishio, Yoshiyuki" sort="Nishio, Yoshiyuki" uniqKey="Nishio Y" first="Yoshiyuki" last="Nishio">Yoshiyuki Nishio</name><name sortKey="Sawada, Yoichi" sort="Sawada, Yoichi" uniqKey="Sawada Y" first="Yoichi" last="Sawada">Yoichi Sawada</name><name sortKey="Suzuki, Kyoko" sort="Suzuki, Kyoko" uniqKey="Suzuki K" first="Kyoko" last="Suzuki">Kyoko Suzuki</name><name sortKey="Takahashi, Shoki" sort="Takahashi, Shoki" uniqKey="Takahashi S" first="Shoki" last="Takahashi">Shoki Takahashi</name><name sortKey="Takeda, Atsushi" sort="Takeda, Atsushi" uniqKey="Takeda A" first="Atsushi" last="Takeda">Atsushi Takeda</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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