The Origin of Lightness Constancy | An Empirical Study Using a Cue Elimination Approach

Sarina Hui-Lin Chien

ISBN 10: 3639120590 / ISBN 13: 9783639120592

Published by VDM Verlag Dr. Müller, 2009

About this Item

The Origin of Lightness Constancy | An Empirical Study Using a Cue Elimination Approach | Sarina Hui-Lin Chien | Taschenbuch | Englisch | VDM Verlag Dr. Müller | EAN 9783639120592 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

Seller Inventory # 101656173

Bibliographic Details

• Title: The Origin of Lightness Constancy | An Empirical Study Using a Cue Elimination Approach
• Publisher: VDM Verlag Dr. Müller
• Publication Date: 2009
• Language: English
• ISBN 10: 3639120590
• ISBN 13: 9783639120592
• Binding: Taschenbuch
• Condition: Neu
• Seller catalogs:
  • Bücher

About this title

Synopsis

In adult lightness perception, the perceived lightness of a region is determined by at least two steps. First, the visual system computes the luminance ratios between that region and its surrounding areas (a local luminance ratio cue), and second, the region that has the highest luminance in a scene is assigned as white (a white anchoring cue). In this book, the author tested if infants as young as 4 months exhibit lightness constancy by use of a local luminance ratio cue and/or a white anchoring cue. Using a forced-choice novelty preference method, the author tested lightness constancy under three conditions: a constant white surround, a constant black surround, and a change of surround. Results showed that 4-mo- olds exhibited lightness constancy when both a local luminance ratio cue and a white anchoring cue were present. If the white anchoring cue was eliminated, or the local luminance ratios were changed, infants failed to show constancy. This pattern of results suggests that both a local luminance ratio cue and a white anchoring cue are necessary; either cue by itself is insufficient for achieving lightness constancy in early infancy.

About the Author

Dr. Chien received a B.S. from National Taiwan University and a Ph.D. from University of Washington, Seattle. She took profound interest in the development of visual perception and cognition in early infancy. She is currently a professor at the Graduate Institute of Neural & Cognitive Sciences at China Medical University, Taiwan.