1/f-type fluctuation in human visuomotor transformation.
Neuroreport
; 15(7): 1133-6, 2004 May 19.
Article
em En
| MEDLINE
| ID: mdl-15129160
ABSTRACT
In the absence of vision of the limb, movements toward a visual target exhibit substantial errors which are considered to originate mainly in the visuomotor transformation process. To determine the time-dependent property of human visuomotor transformation, we investigated the error sequences in movements toward visual target using scaling analyses. When subjects could see their controlling limb, the error sequences could not be distinguished from a random sequence. On the other hand, when the controlling limb was invisible, the error sequences were not random in order, but exhibited 1/f-type time correlation. This finding that the variation in human visuomotor transformation shows 1/f-type fluctuation provides a significant index for mathematical modeling and system identification in human visuomotor control.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estimulação Luminosa
/
Braço
/
Desempenho Psicomotor
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Neuroreport
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Japão