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Titolo:
CATCHING BALLS - HOW TO GET THE HAND TO THE RIGHT PLACE AT THE RIGHT TIME
Autore:
PEPER L; BOOTSMA RJ; MESTRE DR; BAKKER FC;
Indirizzi:
FREE UNIV AMSTERDAM,FAC BEWEGINGSWETENSCHAPPEN,BOECHORSTSTR 9 1081 BTAMSTERDAM NETHERLANDS UNIV AIX MARSEILLE 2,FAC SPORT SCI MARSEILLE FRANCE UNIV AIX MARSEILLE 2,FAC MED MARSEILLE FRANCE UNIV AIX MARSEILLE 2,COGNIT & MOVEMENT NATL SCI RES CTR MARSEILLE FRANCE
Titolo Testata:
Journal of experimental psychology. Human perception and performance
fascicolo: 3, volume: 20, anno: 1994,
pagine: 591 - 612
SICI:
0096-1523(1994)20:3<591:CB-HTG>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
FREE-FALL TRAJECTORIES; TO-COLLISION; VISUAL INFORMATION; SCALED INFORMATION; PERCEPTION; MOTION; AFFORDANCES; OBJECTS; DEPTH; FLOW;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social Sciences Citation Index
Citazioni:
52
Recensione:
Indirizzi per estratti:
Citazione:
L. Peper et al., "CATCHING BALLS - HOW TO GET THE HAND TO THE RIGHT PLACE AT THE RIGHT TIME", Journal of experimental psychology. Human perception and performance, 20(3), 1994, pp. 591-612

Abstract

Information specifying the future passing distance of an approaching object is available (in units of object size) in the ratio of optical displacement velocity and optical expansion velocity. Despite empirical support for the assumption that object size can serve as a metric inthe perception of passing distance, the present series of experimentsreveals that in catching a ball subjects do not rely on such ''point-predictive'' information. The angle at which (real and simulated) balls approached the subject systematically affected verbal and manual estimates of future passing distance, as well as the kinematic characteristics of catching movements. To catch a ball, the actor uses momentaryaction-related information instead of spatiotemporal estimates. The hand velocity is geared to information specifying the currently required velocity. This secures ending up at the right place in the right time, regardless of where this may be.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 13:00:07