Conceptual binding: integrated visual cues reduce processing costs in bimanual movements.
J Neurophysiol
; 102(1): 302-11, 2009 Jul.
Article
em En
| MEDLINE
| ID: mdl-19369359
ABSTRACT
In discrete reaction time (RT) tasks, it has been shown that nonsymmetric bimanual movements are initiated slower than symmetric movements in response to symbolic cues. By contrast, no such RT differences are found in response to direct cues ("direct cue effect"). Here, we report three experiments showing that the direct cue effect generalizes to rhythmical bimanual movements and that RT cost depends on different cue features 1) symbolic versus direct or 2) integrated (i.e., action of both hands is indicated as one entity) versus dissociated (i.e., action of each hand is indicated separately). Our main finding was that dissociated symbolic cues were most likely processed serially, resulting in the longest RTs, which were substantially reduced with integrated symbolic cues. However, extra RT costs for switching to nonsymmetrical bimanual movements were overcome only when the integrated cues were direct. We conclude that computational resources might have been exceeded when the response needs to be determined for each hand separately, but not when a common response for both hands is selected. This supports the idea that bimanual control benefits from conceptual binding.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Desempenho Psicomotor
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Formação de Conceito
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Sinais (Psicologia)
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Lateralidade Funcional
/
Movimento
Tipo de estudo:
Health_economic_evaluation
/
Prognostic_studies
Limite:
Adult
/
Female
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Humans
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Male
Idioma:
En
Revista:
J Neurophysiol
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Bélgica