MovDisordV3, PascalFrancis, Corpus, bibRecord, 001465

Withdrawal of Visual Feedback Improves Micrographia in Parkinson's Disease

Identifieur interne : 001465 ( PascalFrancis/Corpus ); précédent : 001464; suivant : 001466

Withdrawal of Visual Feedback Improves Micrographia in Parkinson's Disease

Auteurs : William G. Ondo ; Pankaj Satija

Source :

Movement disorders [ 0885-3185 ] ; 2007.

RBID : Pascal:08-0069710

Descripteurs français

Pascal (Inist)
- Pathologie du système nerveux, Maladie de Parkinson, Boucle réaction.

English descriptors

KwdEn :
- Feedback, Nervous system diseases, Parkinson disease.

Abstract

Micrographia is a common, often presenting feature of Parkinson's disease. We assessed a simple writing paradigm in 40 PD patients "off" medications, 40 different PD patients "on" medications, and 64 age- and sex-matched controls. Patients wrote "Today is a nice day" with both eyes open and eyes closed to assess the effects of visual withdrawal (eyes closure). The order (eyes open vs. eyes closed) was alternated. In the "off" medicine group, eye closure increased the writing length by 14.0 ± 10.1% (P < 0.05) from a mean of 69.1 to 77.7 mm [range -14% to +73%]. The percentage increase was larger in the 20 subjects with the smallest baseline writing size (worse micrographia), compared to the 20 with relatively larger writing (19.5% vs. 7.9%, P < 0.05). Neither the "on" medicine group, nor the control group changed. Simple eye closure significantly increased writing size in "off" PD patients to a similar or greater amount as levodopa. This data suggests that micrographia is not a pure motor hypokinetic feature but is affected by PD similar to other superlearned tasks such as walking. Furthermore, some patients have adapted this simple eye closing strategy when writing, especially signatures.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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Format Inist (serveur)

NO :	PASCAL 08-0069710 INIST
ET :	Withdrawal of Visual Feedback Improves Micrographia in Parkinson's Disease
AU :	ONDO (William G.); SATIJA (Pankaj)
AF :	Department of Neurology, Baylor College of Medicine/Houston, Texas/Etats-Unis (1 aut., 2 aut.)
DT :	Publication en série; Courte communication, note brève; Niveau analytique
SO :	Movement disorders; ISSN 0885-3185; Etats-Unis; Da. 2007; Vol. 22; No. 14; Pp. 2130-2131; Bibl. 9 ref.
LA :	Anglais
EA :	Micrographia is a common, often presenting feature of Parkinson's disease. We assessed a simple writing paradigm in 40 PD patients "off" medications, 40 different PD patients "on" medications, and 64 age- and sex-matched controls. Patients wrote "Today is a nice day" with both eyes open and eyes closed to assess the effects of visual withdrawal (eyes closure). The order (eyes open vs. eyes closed) was alternated. In the "off" medicine group, eye closure increased the writing length by 14.0 ± 10.1% (P < 0.05) from a mean of 69.1 to 77.7 mm [range -14% to +73%]. The percentage increase was larger in the 20 subjects with the smallest baseline writing size (worse micrographia), compared to the 20 with relatively larger writing (19.5% vs. 7.9%, P < 0.05). Neither the "on" medicine group, nor the control group changed. Simple eye closure significantly increased writing size in "off" PD patients to a similar or greater amount as levodopa. This data suggests that micrographia is not a pure motor hypokinetic feature but is affected by PD similar to other superlearned tasks such as walking. Furthermore, some patients have adapted this simple eye closing strategy when writing, especially signatures.
CC :	002B17; 002B17G; 002B17A03
FD :	Pathologie du système nerveux; Maladie de Parkinson; Boucle réaction
FG :	Pathologie de l'encéphale; Syndrome extrapyramidal; Maladie dégénérative; Pathologie du système nerveux central
ED :	Nervous system diseases; Parkinson disease; Feedback
EG :	Cerebral disorder; Extrapyramidal syndrome; Degenerative disease; Central nervous system disease
SD :	Sistema nervioso patología; Parkinson enfermedad; Retroalimentación
LO :	INIST-20953.354000174393170210
ID :	08-0069710

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Pascal:08-0069710

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	Movement Disorders (revue)
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Movement Disorders (revue)

Withdrawal of Visual Feedback Improves Micrographia in Parkinson's Disease

Withdrawal of Visual Feedback Improves Micrographia in Parkinson's Disease

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