This chapter discusses the ordering of color percepts, and starts by presenting an overview of the critical issues surrounding the topic and by examining the relationship between stimuli and percepts. Certain types of variability were found by experimental psychology in the relationship between stimulus and response as a result of observation conditions. In the twentieth century, the view that the normal human color-vision system has a standard implementation and that all perceptual data are appropriately treated with normal statistical distribution methodology (...) became the standard paradigm. However, the idea that the large number of color percepts humans can experience must fit into some kind of ordering system is an old one, going as far back to Aristotle and his proposed color categories based on a scale of chromatic colors between white and black. The strengths and limitations of the more recently developed kinds of color order systems are also touched upon here. (shrink)

The degree to which physiology and culture have affected the formation of primitive color categories continues to be a matter of discussion. In this paper the degree of agreement between the ranges of individual color term foci for the four hue-based color categories yellow, green, blue, and red and individual choices of Munsell samples representing for the observers Hering's four unique hues is investigated. The color term focus range data are extracted from the survey results of the 110 unwritten languages (...) of the World Color Survey, also in terms of the Munsell color order system. Agreement of approximately 90% between the two has been found, indicating the likelihood of a strong color vision system related physiological component in the formation of these four primitive hue categories. (shrink)

Berlin & Kay hue-related basic color categories are compared with the ISCC-NBS system of object color categorization. Though independently derived, categories of the former form a small subset of the latter. A conjecture is proposed that explains the absence of yellow-green and blue-green basic hue categories and the potential for a violet category as the result of constraints on primitive hue category formation due to considerable variation in stimuli selected by color-normal observers as representing for them unique hues.

Paul Churchland proposed a conceptual framework for translating reflectance profiles into a space he takes to be the color qualia space. It allows him to determine color metamers of spectral surface reflectances without reference to the characteristics of visual systems, claiming that the reflectance classes that it specifies correspond to visually determined metamers. We advance several objections to his method, show that a significant number of reflectance profiles are not placed into the space in agreement with the qualia solid, and (...) produce two sets of counterexamples to his claim for metamers. (shrink)

This commentary raises the possibility of recent discussion on the issue of basic color terms suffering from the "stimulus error," first described by the English psychologist E. B. Titchener. It refers to confusion of the psychological experience with the physical description of the stimulus. Such confusion is routine in everyday language in situations where private sensory experiences are involved that cannot be objectively described, but is harmful in fundamental discussions about experiences.

The data from the World Color Survey of 110 un-written languages have been analyzed in regard to individual focal choices. A total of 46 major color terms have been identified. Of these 24 can be defined in terms of English color terms, while 22 cannot. The most important color term in terms of usage is red, followed by white and black. In the 110 languages, 73 different arrangements of major color terms have been found. The six Hering fundamental colors, presumably (...) closely related to the workings of the color vision system, occur preferentially but not consistently in languages with 6 or more major terms. They represent the top six categories in terms of major usage. WCS indicates usage of major color terms to be complex and clearly also influenced by cultural choices. (shrink)

In their article ‘In defense of incompatibility, objectivism, and veridicality about color’ P. Roberts and K. Schmidtke offer the results of an experiment supposed to show that if selection of colored samples representing unique hues for subjects has a greater inter-subject variability than identification of sample pairs with no perceptual difference between them the result provides support for the philosophical concept of color realism. On examining the results in detail, we find that, according to standard statistical methodology, the relative magnitude (...) of inter-subject variability in the matching experiment is for both tested colors larger than that in the naming experiment, thus invalidating their claims. In addition, we point out several serious shortcomings in the experiment. (shrink)

Couvrant soixante ans d’histoire, depuis l’adoption de la première loi fédérale en matière d’assurance chômage en 1924, jusqu’à la mise en œuvre de la Loi fédérale sur l’assurance chômage obligatoire et l’indemnité en cas d’insolvabilité (LACI) en 1982, l’ouvrage de Carola Togni donne à voir la genèse de l’assurance chômage sous un jour inédit, soit comme un outil de gestion sexuée du chômage et de l’emploi. Cette analyse socio-historique constitue une contribution importante à l’histoire de...

Reflectance and spectral power functions are poor predictors of color experiences. Only in completely relativized conditions (single observer, non-metameric set of stimuli, and single set of viewing conditions) is the relationship close. Variation in reflectance of Munsell chips experienced by color-normal observers as having a unique green hue encompasses approximately sixty percent of the complete range of hues falling under the category “green”; and in recent determinations of unique hues, ranges of yellow and green as well as green and blue (...) unique hues overlap. (shrink)

We recently conducted an experiment to show that a lot of the empirically measured disagreement cited to support the premise that there is mass perceptual disagreement about the colors, a premise often cited by philosophers, is due to conceptual factors. Kuehni and Hardin object to how we measured disagreement and to various aspects of our experimental design. In this reply, we defend our study.

Philosophers and scientists have long speculated about the nature of color. Atomists such as Democritus thought color to be "conventional," not real; Galileo and other key figures of the Scientific Revolution thought that it was an erroneous projection of our own sensations onto external objects. More recently, philosophers have enriched the debate about color by aligning the most advanced color science with the most sophisticated methods of analytical philosophy. In this volume, leading scientists and philosophers examine new problems with new (...) analytic tools, considering such topics as the psychophysical measurement of color and its implications, the nature of color experience in both normal color-perceivers and the color blind, and questions that arise from what we now know about the neural processing of color information, color consciousness, and color language. Taken together, these papers point toward a complete restructuring of current orthodoxy concerning color experience and how it relates to objective reality. Kuehni, Jameson, Mausfeld, and Niederee discuss how the traditional framework of a three-dimensional color space and basic color terms is far too simple to capture the complexities of color experience. Clark and MacLeod discuss the difficulties of a materialist account of color experience. Churchland, Cohen, Matthen, and Westphal offer competing accounts of color ontology. Finally, Broackes and Byrne and Hilbert discuss the phenomenology of color blindness. Contributors: Justin Broackes, Alex Byrne, Paul M. Churchland, Austen Clark, Jonathan Cohen, David R. Hilbert, Kimberly A. Jameson, Rolf Kuehni, Don I.A. MacLeod, Mohan Matthen, Rainer Mausfeld, Richard Niederée, Jonathan Westphal The hardcover edition does not include a dust jacket. (shrink)

This chapter focuses on a factor widely considered by the standard view to be the basis for color-naming phenomena and explores some plausible, comparatively uninvestigated factors that might underlie color naming. These are illustrated, in part, through a reexamination of World Color Survey data as it has been presented by Kuehni. The aim of this chapter is to examine the appropriateness of the Hering opponent-color construct as a theoretical foundation for explaining patterns of color naming in datasets like the WCS, (...) which include many languages that do not use Hering color terms. The main conclusion reached is that a proper explanation for cross-cultural color naming and categorization should not depend on the Hering opponent-color construct. (shrink)

In "Does the Basic Color Terms discussion suffer from the Stimulus Error?" Rolf Kuehni describes a research stumbling block known as the "stimulus error," and hints at the difficulties it causes for mainstream color naming research. Among the issues intrinsic to Kuehni's "stimulus error" description is the important question of what can generally be inferred from color naming behaviors based on bounded samples of empirical stimuli. Here we examine some specifics of the color naming research issues that Kuehni raises. While (...) we share Kuehni's view regarding potential problems caused by the "stimulus error" and his concern regarding its prevalence, Kuehni's commentary seems primarily aimed at stimulating a general discussion of color naming research implications, because the articles he critiques do not actually commit the "stimulus error" in any serious sense. Based on Kuehni's comments, we further examine some of the relevant empirical and theoretical implications for cross-cultural color naming research. (shrink)