Sie sind hier: Startseite Unser Institut Abteilungen Entwicklungs- und Pädagogische Psychologie Mitarbeiterinnen und Mitarbeiter Priv.-Doz. Dr. Michael Kavšek Infants’ responsiveness to lightness changes on a dynamic three-dimensional surface

Infants’ responsiveness to lightness changes on a dynamic three-dimensional surface

Abstract

In a natural-preference study, 24 infants 6 months of age were presented with a continuously folding and unfolding pattern of stripes. The gray levels in this dynamic pattern were changed in such way that adults attribute them to changes of the various regions’ orientation relative to the light source (lightness constancy (LC) display). The comparison stimulus consisted of a continuously folding and unfolding pattern, in which the gray level changes were not consistent with a striped surface illuminated from one side (RLC animation). The only difference between the animations was the relationship between the change in surface orientation and the change of gray level. The infants looked significantly longer at the comparison stimulus than at the lightness constancy display. These findings suggest that the infants detected the violation of the lightness constancy rules in the comparison stimulus. The infants were also presented with control animations, a folding stripes (FS) animation and a folding plaid (FP) animation, to rule out the possibility that looking preferences were based on low-level properties of the display.

The animations can be viewed using Flash player or your internet browser!

In the lightness constancy (LC) animation, changes of gray levels are consistent with changes of surface orientation.

In the reversed lightness constancy (RLC) animation, changes of gray levels are inconsistent with changes of surface orientation.

The folding stripes (FS) animation.

The folding plaid (FP) animation.

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