HapticV1, Main, Exploration, bibRecordById, Pascal:02-0235448

Theta-power differences in patients with mild cognitive impairment under rest condition and during haptic tasks

Identifieur interne : 007317 ( Main/Exploration ); précédent : 007316; suivant : 007318

Theta-power differences in patients with mild cognitive impairment under rest condition and during haptic tasks

Auteurs : Martin Grunwald [Allemagne] ; Frank Busse [Allemagne] ; Anke Hensel [Allemagne] ; Steffi Riedel-Heller [Allemagne] ; Frithjof Kruggel [Allemagne] ; Thomas Arendt [Allemagne] ; Hendrike Wolf [Allemagne] ; Herman-Josef Gertz [Allemagne]

Source :

Alzheimer disease and associated disorders [ 0893-0341 ] ; 2002.

RBID : Pascal:02-0235448

Descripteurs français

Pascal (Inist)
- Démence, Trouble cognition, Electroencéphalographie, Rythme thêta, Analyse spectrale, Repos, Perception, Diagnostic, Personne âgée.
Wicri :
- topic : Personne âgée.

English descriptors

KwdEn :
- Cognitive disorder, Dementia, Diagnosis, Elderly, Electroencephalography, Perception, Rest, Spectral analysis, Theta rhythm.

Abstract

The aim of this study was to investigate spectral EEG theta-power during perceptive-cognitive demands in age-homogenous groups of subjects with mild cognitive impairment (MCI), mild dementia (MDE), and a healthy control (CO) group. The present study includes 51 subjects (23 males, 28 females). We used the scales of the CDR (clinical dementia rating) to assign the subjects to the different groups. EEG data were collected during 10 minutes rest condition with eyes closed and during haptic perception test. The quality of the haptic reproductions differed significantly between CO and MCI, as well as between CO and MDE. The statistical comparison between EEG theta-power under rest condition and theta-power during haptic tasks revealed a significant decrease in theta-power during haptic tasks in all three groups over parieto-occipital regions. During haptic tasks, the theta-power was significantly different between CO and MDE over occipital regions and over parieto-temporal regions. A significant difference between CO and MCI was only revealed over right occipital regions (O2). Spectral theta-power during haptic tasks is a suitable measure to distinguish healthy subjects (CO) from patients with MCI respectively MDE. The results show that haptic tasks are sensitive to early perceptive-cognitive and functional deficits in patients with MCI.

Affiliations:

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Le document en format XML

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<author><name sortKey="Gertz, Herman Josef" sort="Gertz, Herman Josef" uniqKey="Gertz H" first="Herman-Josef" last="Gertz">Herman-Josef Gertz</name>
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<author><name sortKey="Riedel Heller, Steffi" sort="Riedel Heller, Steffi" uniqKey="Riedel Heller S" first="Steffi" last="Riedel-Heller">Steffi Riedel-Heller</name>
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<author><name sortKey="Gertz, Herman Josef" sort="Gertz, Herman Josef" uniqKey="Gertz H" first="Herman-Josef" last="Gertz">Herman-Josef Gertz</name>
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<series><title level="j" type="main">Alzheimer disease and associated disorders</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cognitive disorder</term>
<term>Dementia</term>
<term>Diagnosis</term>
<term>Elderly</term>
<term>Electroencephalography</term>
<term>Perception</term>
<term>Rest</term>
<term>Spectral analysis</term>
<term>Theta rhythm</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Démence</term>
<term>Trouble cognition</term>
<term>Electroencéphalographie</term>
<term>Rythme thêta</term>
<term>Analyse spectrale</term>
<term>Repos</term>
<term>Perception</term>
<term>Diagnostic</term>
<term>Personne âgée</term>
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<front><div type="abstract" xml:lang="en">The aim of this study was to investigate spectral EEG theta-power during perceptive-cognitive demands in age-homogenous groups of subjects with mild cognitive impairment (MCI), mild dementia (MDE), and a healthy control (CO) group. The present study includes 51 subjects (23 males, 28 females). We used the scales of the CDR (clinical dementia rating) to assign the subjects to the different groups. EEG data were collected during 10 minutes rest condition with eyes closed and during haptic perception test. The quality of the haptic reproductions differed significantly between CO and MCI, as well as between CO and MDE. The statistical comparison between EEG theta-power under rest condition and theta-power during haptic tasks revealed a significant decrease in theta-power during haptic tasks in all three groups over parieto-occipital regions. During haptic tasks, the theta-power was significantly different between CO and MDE over occipital regions and over parieto-temporal regions. A significant difference between CO and MCI was only revealed over right occipital regions (O2). Spectral theta-power during haptic tasks is a suitable measure to distinguish healthy subjects (CO) from patients with MCI respectively MDE. The results show that haptic tasks are sensitive to early perceptive-cognitive and functional deficits in patients with MCI.</div>
</front>
</TEI>
<affiliations><list><country><li>Allemagne</li>
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<region><li>District de Leipzig</li>
<li>Saxe (Land)</li>
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<tree><country name="Allemagne"><region name="Saxe (Land)"><name sortKey="Grunwald, Martin" sort="Grunwald, Martin" uniqKey="Grunwald M" first="Martin" last="Grunwald">Martin Grunwald</name>
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<name sortKey="Arendt, Thomas" sort="Arendt, Thomas" uniqKey="Arendt T" first="Thomas" last="Arendt">Thomas Arendt</name>
<name sortKey="Busse, Frank" sort="Busse, Frank" uniqKey="Busse F" first="Frank" last="Busse">Frank Busse</name>
<name sortKey="Gertz, Herman Josef" sort="Gertz, Herman Josef" uniqKey="Gertz H" first="Herman-Josef" last="Gertz">Herman-Josef Gertz</name>
<name sortKey="Hensel, Anke" sort="Hensel, Anke" uniqKey="Hensel A" first="Anke" last="Hensel">Anke Hensel</name>
<name sortKey="Kruggel, Frithjof" sort="Kruggel, Frithjof" uniqKey="Kruggel F" first="Frithjof" last="Kruggel">Frithjof Kruggel</name>
<name sortKey="Riedel Heller, Steffi" sort="Riedel Heller, Steffi" uniqKey="Riedel Heller S" first="Steffi" last="Riedel-Heller">Steffi Riedel-Heller</name>
<name sortKey="Wolf, Hendrike" sort="Wolf, Hendrike" uniqKey="Wolf H" first="Hendrike" last="Wolf">Hendrike Wolf</name>
</country>
</tree>
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</record>

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Serveur d'exploration sur les dispositifs haptiques

Theta-power differences in patients with mild cognitive impairment under rest condition and during haptic tasks

Theta-power differences in patients with mild cognitive impairment under rest condition and during haptic tasks

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri