Motion thresholds in infants to sinusoidal gratings.

Finlay, D C; Chorlton, M C; Boulton, J C

Finlay, D C; Chorlton, M C; Boulton, J C.

Afiliación

Finlay DC; Department of Psychology, University of Newcastle, Australia.

J Gen Psychol ; 118(3): 263-70, 1991 Jul.

Article en En | MEDLINE | ID: mdl-1757782

RESUMEN

Motion thresholds were determined at 9 degrees eccentricity in infants (mean = 14 weeks old). The stimuli used were computer-generated sinusoidal gratings presented through a 7.45 degrees aperture at a contrast ratio of .83. The range of velocities (.5, 1, 2, 4, and 6 degrees per s) was examined at only one spatial frequency (1 cycle per degree). At low velocities (less than 2 degrees per s), the infants showed no clear preference for the moving stimulus over the stationary stimulus. At faster velocities (2-6 degrees per s), the infants exhibited a clear preference for the moving stimulus. The results were interpreted as indicating that infants at 3 months of age are relatively insensitive to slow motions for low spatial frequency stimuli.

Asunto(s)

Percepción de Movimiento; Reconocimiento Visual de Modelos; Factores de Edad; Femenino; Fijación Ocular; Humanos; Lactante; Masculino; Estimulación Luminosa; Umbral Sensorial; Agudeza Visual

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Reconocimiento Visual de Modelos / Percepción de Movimiento Tipo de estudio: Prognostic_studies Límite: Female / Humans / Infant / Male Idioma: En Revista: J Gen Psychol Año: 1991 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos

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