Visual object recognition and attention in Parkinson's disease patients with visual hallucinations
Identifieur interne : 000C24 ( Main/Exploration ); précédent : 000C23; suivant : 000C25Visual object recognition and attention in Parkinson's disease patients with visual hallucinations
Auteurs : Anne Marthe Meppelink [Pays-Bas] ; Janneke Koerts [Pays-Bas] ; Maarten Borg [Pays-Bas] ; Klaus Leonard Leenders [Pays-Bas] ; Teus Van Laar [Pays-Bas]Source :
- Movement Disorders [ 0885-3185 ] ; 2008-10-15.
English descriptors
Abstract
Visual hallucinations (VH) are common in Parkinson's disease (PD) and are hypothesized to be due to impaired visual perception and attention deficits. We investigated whether PD patients with VH showed attention deficits, a more specific impairment of higher order visual perception, or both. Forty‐two volunteers participated in this study, including 14 PD patients with VH, 14 PD patients without VH and 14 healthy controls (HC), matched for age, gender, education level and for level of executive function. We created movies with images of animals, people, and objects dynamically appearing out of random noise. Time until recognition of the image was recorded. Sustained attention was tested using the Test of Attentional Performance. PD patients with VH recognized all images but were significantly slower in image recognition than both PD patients without VH and HC. PD patients with VH showed decreased sustained attention compared to PD patients without VH who again performed worse than HC. In conclusion, the recognition of objects is intact in PD patients with VH; however, these patients where significantly slower in image recognition than patients without VH and HC, which was not explained by executive dysfunction. Both image recognition speed and sustained attention decline in PD, in a more progressive way if VH start to occur. © 2008 Movement Disorder Society
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DOI: 10.1002/mds.22270
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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="2008-10-15">2008-10-15</date><biblScope unit="volume">23</biblScope><biblScope unit="issue">13</biblScope><biblScope unit="page" from="1906">1906</biblScope><biblScope unit="page" to="1912">1912</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">CFE8B75217550D80D2BBFEEB4241B62FDF08A428</idno><idno type="DOI">10.1002/mds.22270</idno><idno type="ArticleID">MDS22270</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>attention</term><term>visual hallucinations</term><term>visual perception</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Visual hallucinations (VH) are common in Parkinson's disease (PD) and are hypothesized to be due to impaired visual perception and attention deficits. We investigated whether PD patients with VH showed attention deficits, a more specific impairment of higher order visual perception, or both. Forty‐two volunteers participated in this study, including 14 PD patients with VH, 14 PD patients without VH and 14 healthy controls (HC), matched for age, gender, education level and for level of executive function. We created movies with images of animals, people, and objects dynamically appearing out of random noise. Time until recognition of the image was recorded. Sustained attention was tested using the Test of Attentional Performance. PD patients with VH recognized all images but were significantly slower in image recognition than both PD patients without VH and HC. PD patients with VH showed decreased sustained attention compared to PD patients without VH who again performed worse than HC. In conclusion, the recognition of objects is intact in PD patients with VH; however, these patients where significantly slower in image recognition than patients without VH and HC, which was not explained by executive dysfunction. Both image recognition speed and sustained attention decline in PD, in a more progressive way if VH start to occur. © 2008 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country><region><li>Groningue (province)</li></region><settlement><li>Groningue</li></settlement><orgName><li>Université de Groningue</li></orgName></list><tree><country name="Pays-Bas"><region name="Groningue (province)"><name sortKey="Meppelink, Anne Marthe" sort="Meppelink, Anne Marthe" uniqKey="Meppelink A" first="Anne Marthe" last="Meppelink">Anne Marthe Meppelink</name></region><name sortKey="Borg, Maarten" sort="Borg, Maarten" uniqKey="Borg M" first="Maarten" last="Borg">Maarten Borg</name><name sortKey="Koerts, Janneke" sort="Koerts, Janneke" uniqKey="Koerts J" first="Janneke" last="Koerts">Janneke Koerts</name><name sortKey="Koerts, Janneke" sort="Koerts, Janneke" uniqKey="Koerts J" first="Janneke" last="Koerts">Janneke Koerts</name><name sortKey="Leenders, Klaus Leonard" sort="Leenders, Klaus Leonard" uniqKey="Leenders K" first="Klaus Leonard" last="Leenders">Klaus Leonard Leenders</name><name sortKey="Meppelink, Anne Marthe" sort="Meppelink, Anne Marthe" uniqKey="Meppelink A" first="Anne Marthe" last="Meppelink">Anne Marthe Meppelink</name><name sortKey="Van Laar, Teus" sort="Van Laar, Teus" uniqKey="Van Laar T" first="Teus" last="Van Laar">Teus Van Laar</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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