La maladie de Parkinson au Canada (serveur d'exploration)

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MULTISENSORY DETERMINANTS OF ORIENTATION PERCEPTION IN PARKINSON'S DISEASE

Identifieur interne : 000406 ( PascalFrancis/Corpus ); précédent : 000405; suivant : 000407

MULTISENSORY DETERMINANTS OF ORIENTATION PERCEPTION IN PARKINSON'S DISEASE

Auteurs : M. Barnett-Cowan ; R. T. Dyde ; S. H. Fox ; E. Moro ; W. D. Hutchison ; L. R. Harris

Source :

RBID : Pascal:10-0396929

Descripteurs français

English descriptors

Abstract

Perception of the relative orientation of the self and objects in the environment requires integration of visual and vestibular sensory information, and an internal representation of the body's orientation. Parkinson's disease (PD) patients are more visually dependent than controls, implicating the basal ganglia in using visual orientation cues. We examined the relative roles of visual and non-visual cues to orientation in PD using two different measures: the subjective visual vertical (SW) and the perceptual upright (PU). We tested twelve PD patients (nine both on- and off-medication), and thirteen age-matched controls. Visual, vestibular and body cues were manipulated using a polarized visual room presented in various orientations while observers were upright or lying right-side-down. Relative to age-matched controls, patients with PD showed more influence of visual cues for the SW but were more influenced by the direction of gravity for the PU. Increased SW visual dependence corresponded with equal decreases of the contributions of body sense and gravity. Increased PU gravitational dependence corresponded mainly with a decreased contribution of body sense. Curiously however, both of these effects were significant only when patients were medicated. Increased SW visual dependence was highest for PD patients with left-side initial motor symptoms. PD patients when on and off medication were more variable than controls when making judgments. Our results suggest that (i) PD patients are not more visually dependent in general, rather increased visual dependence is task specific and varies with initial onset side, (ii) PD patients may rely more on vestibular information for some perceptual tasks which is reflected in relying less on the internal representation of the body, and (iii) these effects are only present when PD patients are taking dopaminergic medication.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A02 01      @0 NRSCDN
A03   1    @0 Neuroscience
A05       @2 167
A06       @2 4
A08 01  1  ENG  @1 MULTISENSORY DETERMINANTS OF ORIENTATION PERCEPTION IN PARKINSON'S DISEASE
A11 01  1    @1 BARNETT-COWAN (M.)
A11 02  1    @1 DYDE (R. T.)
A11 03  1    @1 FOX (S. H.)
A11 04  1    @1 MORO (E.)
A11 05  1    @1 HUTCHISON (W. D.)
A11 06  1    @1 HARRIS (L. R.)
A14 01      @1 Multisensory Integration Laboratory, Centre for Vision Research, York University, 4700 Keele Street @2 Toronto, ON, M3J 1P3 @3 CAN @Z 1 aut. @Z 2 aut. @Z 6 aut.
A14 02      @1 Department of Psychology, York University, 4700 Keele Street @2 Toronto, ON, M3J 1P3 @3 CAN @Z 1 aut. @Z 6 aut.
A14 03      @1 Department of Medicine, Division of Neurology, University of Toronto, Toronto Western Hospital, Movement Disorders Unit, 399 Bathurst Street @2 Toronto, ON, M5T 2S8 @3 CAN @Z 3 aut. @Z 4 aut.
A14 04      @1 Department of Surgery and Physiology, University of Toronto, Toronto Western Hospital, 399 Bathurst Street @2 Toronto, ON, M5T 2S8 @3 CAN @Z 5 aut.
A20       @1 1138-1150
A21       @1 2010
A23 01      @0 ENG
A43 01      @1 INIST @2 17194 @5 354000191804710170
A44       @0 0000 @1 © 2010 INIST-CNRS. All rights reserved.
A45       @0 2 p.
A47 01  1    @0 10-0396929
A60       @1 P
A61       @0 A
A64 01  1    @0 Neuroscience
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C01 01    ENG  @0 Perception of the relative orientation of the self and objects in the environment requires integration of visual and vestibular sensory information, and an internal representation of the body's orientation. Parkinson's disease (PD) patients are more visually dependent than controls, implicating the basal ganglia in using visual orientation cues. We examined the relative roles of visual and non-visual cues to orientation in PD using two different measures: the subjective visual vertical (SW) and the perceptual upright (PU). We tested twelve PD patients (nine both on- and off-medication), and thirteen age-matched controls. Visual, vestibular and body cues were manipulated using a polarized visual room presented in various orientations while observers were upright or lying right-side-down. Relative to age-matched controls, patients with PD showed more influence of visual cues for the SW but were more influenced by the direction of gravity for the PU. Increased SW visual dependence corresponded with equal decreases of the contributions of body sense and gravity. Increased PU gravitational dependence corresponded mainly with a decreased contribution of body sense. Curiously however, both of these effects were significant only when patients were medicated. Increased SW visual dependence was highest for PD patients with left-side initial motor symptoms. PD patients when on and off medication were more variable than controls when making judgments. Our results suggest that (i) PD patients are not more visually dependent in general, rather increased visual dependence is task specific and varies with initial onset side, (ii) PD patients may rely more on vestibular information for some perceptual tasks which is reflected in relying less on the internal representation of the body, and (iii) these effects are only present when PD patients are taking dopaminergic medication.
C02 01  X    @0 002A25
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C03 01  X  FRE  @0 Orientation @5 01
C03 01  X  ENG  @0 Orientation @5 01
C03 01  X  SPA  @0 Orientación @5 01
C03 02  X  FRE  @0 Perception @5 02
C03 02  X  ENG  @0 Perception @5 02
C03 02  X  SPA  @0 Percepción @5 02
C03 03  X  FRE  @0 Dépendance @5 03
C03 03  X  ENG  @0 Dependence @5 03
C03 03  X  SPA  @0 Dependencia @5 03
C03 04  X  FRE  @0 Maladie de Parkinson @2 NM @5 09
C03 04  X  ENG  @0 Parkinson disease @2 NM @5 09
C03 04  X  SPA  @0 Parkinson enfermedad @2 NM @5 09
C07 01  X  FRE  @0 Maladie dégénérative @5 20
C07 01  X  ENG  @0 Degenerative disease @5 20
C07 01  X  SPA  @0 Enfermedad degenerativa @5 20
C07 02  X  FRE  @0 Pathologie du système nerveux @5 21
C07 02  X  ENG  @0 Nervous system diseases @5 21
C07 02  X  SPA  @0 Sistema nervioso patología @5 21
C07 03  X  FRE  @0 Pathologie de l'encéphale @5 22
C07 03  X  ENG  @0 Cerebral disorder @5 22
C07 03  X  SPA  @0 Encéfalo patología @5 22
C07 04  X  FRE  @0 Syndrome extrapyramidal @5 23
C07 04  X  ENG  @0 Extrapyramidal syndrome @5 23
C07 04  X  SPA  @0 Extrapiramidal síndrome @5 23
C07 05  X  FRE  @0 Pathologie du système nerveux central @5 24
C07 05  X  ENG  @0 Central nervous system disease @5 24
C07 05  X  SPA  @0 Sistema nervosio central patología @5 24
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Format Inist (serveur)

NO : PASCAL 10-0396929 INIST
ET : MULTISENSORY DETERMINANTS OF ORIENTATION PERCEPTION IN PARKINSON'S DISEASE
AU : BARNETT-COWAN (M.); DYDE (R. T.); FOX (S. H.); MORO (E.); HUTCHISON (W. D.); HARRIS (L. R.)
AF : Multisensory Integration Laboratory, Centre for Vision Research, York University, 4700 Keele Street/Toronto, ON, M3J 1P3/Canada (1 aut., 2 aut., 6 aut.); Department of Psychology, York University, 4700 Keele Street/Toronto, ON, M3J 1P3/Canada (1 aut., 6 aut.); Department of Medicine, Division of Neurology, University of Toronto, Toronto Western Hospital, Movement Disorders Unit, 399 Bathurst Street/Toronto, ON, M5T 2S8/Canada (3 aut., 4 aut.); Department of Surgery and Physiology, University of Toronto, Toronto Western Hospital, 399 Bathurst Street/Toronto, ON, M5T 2S8/Canada (5 aut.)
DT : Publication en série; Niveau analytique
SO : Neuroscience; ISSN 0306-4522; Coden NRSCDN; Pays-Bas; Da. 2010; Vol. 167; No. 4; Pp. 1138-1150; Bibl. 2 p.
LA : Anglais
EA : Perception of the relative orientation of the self and objects in the environment requires integration of visual and vestibular sensory information, and an internal representation of the body's orientation. Parkinson's disease (PD) patients are more visually dependent than controls, implicating the basal ganglia in using visual orientation cues. We examined the relative roles of visual and non-visual cues to orientation in PD using two different measures: the subjective visual vertical (SW) and the perceptual upright (PU). We tested twelve PD patients (nine both on- and off-medication), and thirteen age-matched controls. Visual, vestibular and body cues were manipulated using a polarized visual room presented in various orientations while observers were upright or lying right-side-down. Relative to age-matched controls, patients with PD showed more influence of visual cues for the SW but were more influenced by the direction of gravity for the PU. Increased SW visual dependence corresponded with equal decreases of the contributions of body sense and gravity. Increased PU gravitational dependence corresponded mainly with a decreased contribution of body sense. Curiously however, both of these effects were significant only when patients were medicated. Increased SW visual dependence was highest for PD patients with left-side initial motor symptoms. PD patients when on and off medication were more variable than controls when making judgments. Our results suggest that (i) PD patients are not more visually dependent in general, rather increased visual dependence is task specific and varies with initial onset side, (ii) PD patients may rely more on vestibular information for some perceptual tasks which is reflected in relying less on the internal representation of the body, and (iii) these effects are only present when PD patients are taking dopaminergic medication.
CC : 002A25; 002B17G
FD : Orientation; Perception; Dépendance; Maladie de Parkinson
FG : Maladie dégénérative; Pathologie du système nerveux; Pathologie de l'encéphale; Syndrome extrapyramidal; Pathologie du système nerveux central
ED : Orientation; Perception; Dependence; Parkinson disease
EG : Degenerative disease; Nervous system diseases; Cerebral disorder; Extrapyramidal syndrome; Central nervous system disease
SD : Orientación; Percepción; Dependencia; Parkinson enfermedad
LO : INIST-17194.354000191804710170
ID : 10-0396929

Links to Exploration step

Pascal:10-0396929

Le document en format XML

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<div type="abstract" xml:lang="en">Perception of the relative orientation of the self and objects in the environment requires integration of visual and vestibular sensory information, and an internal representation of the body's orientation. Parkinson's disease (PD) patients are more visually dependent than controls, implicating the basal ganglia in using visual orientation cues. We examined the relative roles of visual and non-visual cues to orientation in PD using two different measures: the subjective visual vertical (SW) and the perceptual upright (PU). We tested twelve PD patients (nine both on- and off-medication), and thirteen age-matched controls. Visual, vestibular and body cues were manipulated using a polarized visual room presented in various orientations while observers were upright or lying right-side-down. Relative to age-matched controls, patients with PD showed more influence of visual cues for the SW but were more influenced by the direction of gravity for the PU. Increased SW visual dependence corresponded with equal decreases of the contributions of body sense and gravity. Increased PU gravitational dependence corresponded mainly with a decreased contribution of body sense. Curiously however, both of these effects were significant only when patients were medicated. Increased SW visual dependence was highest for PD patients with left-side initial motor symptoms. PD patients when on and off medication were more variable than controls when making judgments. Our results suggest that (i) PD patients are not more visually dependent in general, rather increased visual dependence is task specific and varies with initial onset side, (ii) PD patients may rely more on vestibular information for some perceptual tasks which is reflected in relying less on the internal representation of the body, and (iii) these effects are only present when PD patients are taking dopaminergic medication.</div>
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<ET>MULTISENSORY DETERMINANTS OF ORIENTATION PERCEPTION IN PARKINSON'S DISEASE</ET>
<AU>BARNETT-COWAN (M.); DYDE (R. T.); FOX (S. H.); MORO (E.); HUTCHISON (W. D.); HARRIS (L. R.)</AU>
<AF>Multisensory Integration Laboratory, Centre for Vision Research, York University, 4700 Keele Street/Toronto, ON, M3J 1P3/Canada (1 aut., 2 aut., 6 aut.); Department of Psychology, York University, 4700 Keele Street/Toronto, ON, M3J 1P3/Canada (1 aut., 6 aut.); Department of Medicine, Division of Neurology, University of Toronto, Toronto Western Hospital, Movement Disorders Unit, 399 Bathurst Street/Toronto, ON, M5T 2S8/Canada (3 aut., 4 aut.); Department of Surgery and Physiology, University of Toronto, Toronto Western Hospital, 399 Bathurst Street/Toronto, ON, M5T 2S8/Canada (5 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Neuroscience; ISSN 0306-4522; Coden NRSCDN; Pays-Bas; Da. 2010; Vol. 167; No. 4; Pp. 1138-1150; Bibl. 2 p.</SO>
<LA>Anglais</LA>
<EA>Perception of the relative orientation of the self and objects in the environment requires integration of visual and vestibular sensory information, and an internal representation of the body's orientation. Parkinson's disease (PD) patients are more visually dependent than controls, implicating the basal ganglia in using visual orientation cues. We examined the relative roles of visual and non-visual cues to orientation in PD using two different measures: the subjective visual vertical (SW) and the perceptual upright (PU). We tested twelve PD patients (nine both on- and off-medication), and thirteen age-matched controls. Visual, vestibular and body cues were manipulated using a polarized visual room presented in various orientations while observers were upright or lying right-side-down. Relative to age-matched controls, patients with PD showed more influence of visual cues for the SW but were more influenced by the direction of gravity for the PU. Increased SW visual dependence corresponded with equal decreases of the contributions of body sense and gravity. Increased PU gravitational dependence corresponded mainly with a decreased contribution of body sense. Curiously however, both of these effects were significant only when patients were medicated. Increased SW visual dependence was highest for PD patients with left-side initial motor symptoms. PD patients when on and off medication were more variable than controls when making judgments. Our results suggest that (i) PD patients are not more visually dependent in general, rather increased visual dependence is task specific and varies with initial onset side, (ii) PD patients may rely more on vestibular information for some perceptual tasks which is reflected in relying less on the internal representation of the body, and (iii) these effects are only present when PD patients are taking dopaminergic medication.</EA>
<CC>002A25; 002B17G</CC>
<FD>Orientation; Perception; Dépendance; Maladie de Parkinson</FD>
<FG>Maladie dégénérative; Pathologie du système nerveux; Pathologie de l'encéphale; Syndrome extrapyramidal; Pathologie du système nerveux central</FG>
<ED>Orientation; Perception; Dependence; Parkinson disease</ED>
<EG>Degenerative disease; Nervous system diseases; Cerebral disorder; Extrapyramidal syndrome; Central nervous system disease</EG>
<SD>Orientación; Percepción; Dependencia; Parkinson enfermedad</SD>
<LO>INIST-17194.354000191804710170</LO>
<ID>10-0396929</ID>
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