The effect of local kinematic changes on anticipation judgments.
Hum Mov Sci
; 30(3): 495-503, 2011 Jun.
Article
em En
| MEDLINE
| ID: mdl-21239078
ABSTRACT
Skilled tennis players rely on a more global than local perceptual strategy when anticipating an opponent's shot direction in tennis (Williams, Huys, Cañal-Bruland, & Hagemann, 2009). Global perceptual strategy refers to the pick-up of dynamic information across different body areas rather than from a single source such as the arm or racket. We extend previous work by examining the spatiotemporal characteristics of visual information pick-up when anticipating shot direction in tennis. We perturbed information from various body locations by interchanging the dynamics of selected areas with those from strokes played to the opposite side of the court. In addition, we presented each manipulation under four different temporal occlusion conditions (from 240 ms prior to racket-ball contact) to examine the time course of information extraction. Skilled tennis players outperformed less skilled counterparts in predicting shot direction, even at early phases of the opponent's motion. Moreover, skilled players showed significant decrements in performance when the arms and racket were perturbed, highlighting the relevance of distal information when anticipating opponents' intentions.
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Base de dados:
MEDLINE
Assunto principal:
Orientação
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Desempenho Psicomotor
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Fenômenos Biomecânicos
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Tênis
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Antecipação Psicológica
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Julgamento
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Percepção de Movimento
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article