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Optical trajectories and the informational basis of fly ball catching.
Marken, Richard S.
Afiliación
  • Marken RS; The RAND Corporation, 1700 Main Street M23, Santa Monica, CA 90407-2138, USA. rmarken@rand.org
J Exp Psychol Hum Percept Perform ; 31(3): 630-4, 2005 Jun.
Article en En | MEDLINE | ID: mdl-15982135
D. M. Shaffer and M. K. McBeath (see record 2002-02027-006) plotted the optical trajectories of uncatchable fly balls and concluded that linear optical trajectory is the informational basis of the actions taken to catch these balls. P. McLeod, N. Reed, and Z. Dienes (see record 2002-11140-016) replotted these trajectories in terms of changes in the tangent of optical angle over time and concluded that optical acceleration is the informational basis of fielder actions. Neither of these conclusions is warranted, however, because the optical trajectories of even uncatchable balls confound the information that is the basis of fielder action with the effects of those same actions on these trajectories. To determine the informational basis of fielder action, it is necessary to do the control-theory-based Test for the Controlled Variable, in which the informational basis of catching is found by looking for features of optical trajectories that are protected from experimentally or naturally applied disturbances.
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Desempeño Psicomotor / Percepción Espacial / Béisbol Tipo de estudio: Prognostic_studies Límite: Humans Idioma: En Revista: J Exp Psychol Hum Percept Perform Año: 2005 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Desempeño Psicomotor / Percepción Espacial / Béisbol Tipo de estudio: Prognostic_studies Límite: Humans Idioma: En Revista: J Exp Psychol Hum Percept Perform Año: 2005 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos