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Why can't some people distinguish colors?
We perceive colors only if the photoreceptors of the retina, called cones, transmit the correct information to the brain. Receptors exist for the colors red, green and blue. Thanks to their interaction we can differentiate color tonalities. But when cones present a genetic defect, color spectra scroll and overlap, becoming indistinguishable.
Subject
- cegueras parciales a los colores
- acromatopsia
- rojo
- verde
- azul
- ishihara
- daltonismo
Type of item
- factual
Subject
- cegueras parciales a los colores
- acromatopsia
- rojo
- verde
- azul
- ishihara
- daltonismo
Type of item
- factual
Providing institution
Aggregator
Rights statement for the media in this item (unless otherwise specified)
- http://rightsstatements.org/vocab/InC/1.0/
Issue date
- 2013-12-11
- 2013-12-11
Identifier
- http://mint-projects.image.ntua.gr/data/euscreenXL/1254097
Language
- spa
- spanish
Is part of
- Europeana XX: Century of Change
Providing country
- Germany
Collection name
First time published on Europeana
- 2014-07-08T14:49:46.278Z
Last time updated from providing institution
- 2021-11-11T15:21:35.135Z