Non-monotonicity on a spatio-temporally defined cyclic task: evidence of two movement types?
Exp Brain Res
; 202(4): 733-46, 2010 May.
Article
em En
| MEDLINE
| ID: mdl-20169338
ABSTRACT
We tested 23 healthy participants who performed rhythmic horizontal movements of the elbow. The required amplitude and frequency ranges of the movements were specified to the participants using a closed shape on a phase-plane display, showing angular velocity versus angular position, such that participants had to continuously control both the speed and the displacement of their forearm. We found that the combined accuracy in velocity and position throughout the movement was not a monotonic function of movement speed. Our findings suggest that specific combinations of required movement frequency and amplitude give rise to two distinct types of movements one of a more rhythmic nature, and the other of a more discrete nature.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Periodicidade
/
Cotovelo
/
Antebraço
/
Atividade Motora
Tipo de estudo:
Prognostic_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Exp Brain Res
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Estados Unidos