info:eu-repo/semantics/article
The subjective metric of remembered colors: A Fisher-information analysis of the geometry of human chromatic memory
Fecha
2019-01Registro en:
Da Fonseca, María de Los Angeles; Vattuone, Nicolás Roberto; Clavero, Federico José; Echeveste, Rodrigo Sebastián; Samengo, Ines; The subjective metric of remembered colors: A Fisher-information analysis of the geometry of human chromatic memory; Public Library of Science; Plos One; 14; 1; 1-2019; 1-30; e0207992
1932-6203
CONICET Digital
CONICET
Autor
Da Fonseca, María de Los Angeles
Vattuone, Nicolás Roberto
Clavero, Federico José
Echeveste, Rodrigo Sebastián
Samengo, Ines
Resumen
In order to explore the metric structure of the space of remembered colors, a computer game was designed, where players with normal color vision had to store a color in memory, and later retrieve it by selecting the best match out of a continuum of alternatives. All tested subjects exhibited evidence of focal colors in their mnemonic strategy. We found no concluding evidence that the focal colors of different players tended to cluster around universal prototypes. Based on the Fisher metric, for each subject we defined a notion of distance in color space that captured the accuracy with which similar colors where discriminated or confounded when stored and retrieved from memory. The notions of distance obtained for different players were remarkably similar. Finally, for each player, we constructed a new color scale, in which colors are memorized and retrieved with uniform accuracy.