In the seventeenth century, Newton used bis famous prism to found the physics of spectral light, thus revolutionising our thinking about colours; more than a hundred years later, Goethe protested against Newton's theory and discovered a number of new prismatic colour phenomena. Did these episodes in the history of science have any influence on the visual arts? For a decade now my visits to art museums have had an agenda: I have been looking for nineteenth-century paintings with certain spectral (...) colour (which will be described in the first half of this paper). While my search has been unsuccessful in traditional Western art, I found what I was looking for in Japa­nese art: in woodblock prints by Hokusai and Hiroshige. This is surprising; little Western science had reached Japan in their time. The second half of the paper pre­sents this riddle, which I am nowhere near solving. Even without a solution, however, a riddle can be instructive. In this case, it may help to bring into focus the fascinating exchange between two distant cultures. Much has been written on the cultural relativ­ity of colour perception, colour systematisation and colour aesthetics; I want to intro­duce a new and so far unknown case that might contribute to this debate - though the debate itself remains beyond the scope of this paper. (shrink)

Goethe's theory of colours is here revisited within the context of the question whether ‚alternatives’ to modern natural science are possible. To ensure comparability a rather weak criterion for scientificity is taken as a point of departure : science is systematic knowledge. Goethe's theory of colours is a systématisation of the domain of colour phenomena, including ‚structural laws’ and the principles governing the appearance of colours. The difference between Goethe's science and modern natural science is investigated through a direct (...) confrontation of Goethe's polemics against Newton and Newton's Opticks, In particular the questions are treated, why Goethe's science does not include the idea of an endless progress of knowledge and how intersubjectivity is warranted in a „perceptionscience” like Goethe's. The conclusion of the paper is, that Goethe's science contains a functional equivalent at each point where it deviates from modern natural science. So it is rather a question of social interest whether a science of this type will be developed in areas other than colour phenomena. (shrink)

On 24 February 2012, then United Nations Secretary-General Ban Ki-moon visited Zambia for three days. His call to respect human rights and give protection to all people regardless of sexual orientation was received mostly with hostility by the Zambian public. The media was inundated with opposing press statements from both government and civil society persons and entities. Politicians, church leaders, and the public widely condemned Ban's advocacy for “gay rights”. Although the debate on homosexuality is not new in Zambia, there (...) is a dearth of research on the subject. This paper seeks, modestly, to re-examine popular rationale for heterosexism to contribute to the resolution of one of the perennial problems colouring African political, social, and cultural discourse. By deconstructing the popular views and systematising the debate, the paper aims at providing a baseline and guideline for addressing the problem of heterosexism in Zambia. Without suggesting that Africa is homogenous, what happened in Zambia following Ban's visit could have predictably happened in many African countries, notably Uganda and Nigeria. This paper, however, uses Zambia as a point of reference. The paper relies on views indicating negative attitudes and beliefs that legislators, and policy makers, church leaders and ordinary citizens have toward homosexuality. These positions have been thematised into six major grounds for the sexual prejudices against homosexuality. These are subjected to logical and epistemic scrutiny. Ultimately, the arguments in support of heterosexism are shown to be untenable. (shrink)

A Naive Realist Theory of Colour defends the view that colours are mind-independent properties of things in the environment, that are distinct from properties identified by the physical sciences. This view stands in contrast to the long-standing and wide-spread view amongst philosophers and scientists that colours don't really exist - or at any rate, that if they do exist, then they are radically different from the way that they appear. It is argued that a naive realist theory of (...) class='Hi'>colour best explains how colours appear to perceiving subjects, and that this view is not undermined either by reflecting on variations in colour perception between perceivers and across perceptual conditions, or by our modern scientific understanding of the world. A Naive Realist Theory of Colour also illustrates how our understanding of what colours are has far-reaching implications for wider questions about the nature of perceptual experience, the relationship between mind and world, the problem of consciousness, the apparent tension between common sense and scientific representations of the world, and even the very nature and possibility of philosophical inquiry. (shrink)

What is "race"? What role, if any, should race play in our moral obligations to others and to ourselves? Ethics along the Color Line addresses the question of whether black Americans should think of each other as members of an extended racial family and base their treatment of each other on this consideration, or eschew racial identity and envision the day when people do not think in terms of race. Anna Stubblefield suggests furthermore that white Americans should consider the same (...) issues. She argues, finally, that for both black and white Americans, thinking of races as families is crucial in helping to combat anti-black oppression. Stubblefield is concerned that the philosophical debate—argued notably between Kwame Anthony Appiah and Lucius Outlaw—over whether or not we should strongly identify in terms of race, and whether or not we should take race into account when we decide how to treat each other, has stalled. Drawing on black feminist scholarship about the moral importance of thinking and acting in terms of community and extended family, the author finds that strong racial identification, if based on appropriate ideals, is morally sound and even necessary to end white supremacy. (shrink)

First Published in 1999. Routledge is an imprint of Taylor & Francis, an informa company.

2003 Paul Bunge Prize of the Hans R. Jenemann Foundation for the History of Scientific Instruments Judging the brightness and color of light has long been contentious. Alternately described as impossible and routine, it was beset by problems both technical and social. How trustworthy could such measurements be? Was the best standard of intensity a gas lamp, an incandescent bulb, or a glowing pool of molten metal? And how much did the answers depend on the background of the specialist? A (...) History of Light and Colour Measurement: Science in the Shadows is a history of the hidden workings of physical science-a technical endeavor embedded in a social context. It argues that this "undisciplined" subject, straddling academia, commerce, and regulation, may be typical not only of 20th century science, but of its future. Attracting scientists, engineers, industrialists, and artists, the developing subject produced a new breed of practitioners having mixed provenance. The new measurers of light had to decide the shape not only of their specialism but of their careers: were they to be a part of physics, engineering, or psychology? The physical scientists who dominated the subject into the early 20th century made their central aim the replacement of the problematic human eye with physical detectors of light. For psychologists between the wars, though, describing the complexity of color was more important than quantifying a handful of its dimensions. And after WWII, military designers shaped the subject of radiometry and subsumed photometry and colorimetry within it. Never attaining a professional cachet, these various specialists moved fluidly between science and technology; through government, industry, and administration. (shrink)

The origin of colour categories and their relationship to colour perception have been the prime example for testing the influence of language on perception and thought and more generally for investigating the biological, ecological and cultural determination of human cognition. These themes are central to a broad range of disciplines, including vision research, neuroscience, cognitive psychology, developmental science, cultural anthropology, linguistics, computer science, and philosophy. Unfortunately, though, it has been tacitly taken for granted that the conceptual assumptions and (...) methodological practices from the dawn of empirical research on colour categorisation are the gold standard for current colour category research. Here, we show that these assumptions and practices are obsolete and flawed and have led to four fundamental and widespread misconceptions about colour categorisation: 1.) that colour perception is inherently categorical; 2.) that English Basic Colour Terms correspond to universal categories that are the end point of a fixed evolutionary sequence; 3.) that the prototypes of English basic colour terms are perceptually salient and qualify as focal colours; and 4.) that colour category research essentially revolves around the universalism-realism debate. State-of-the-art research on colour categorisation provides new, more sophisticated approaches and allows for rectifying those four statements. At the same time, some of the questions underlying those statements are not convincingly answered yet and constitute major challenges to future research. The critical considerations on colour categorisation may be transferred to research on other kinds of perceptual categorisation to inspire new, more general research questions. (shrink)

Categorical perception (CP) is said to occur when a continuum of equally spaced physical changes is perceived as unequally spaced as a function of category membership (Harnad, S. (Ed.) (1987). Psychophysical and cognitive aspects of categorical perception: A critical overview. Cambridge: Cambridge University Press). A common suggestion is that CP for color arises because perception is qualitatively distorted when we learn to categorize a dimension. Contrary to this view, we here report that English speakers show no evidence of lowered discrimination (...) thresholds at the boundaries between blue and green categories even though CP is found at these boundaries in a supra-threshold task. Furthermore, there is no evidence of different discrimination thresholds between individuals from two language groups (English and Korean) who use different color terminology in the blue-green region and have different supra-threshold boundaries. Our participants' just noticeable difference (JND) thresholds suggest that they retain a smooth continuum of perceptual space that is not warped by stretching at category boundaries or by within-category compression. At least for the domain of color, categorical perception appears to be a categorical, but not a perceptual phenomenon. (shrink)

ABSTRACTWhen processing information about human faces, we have to integrate different sources of information like skin colour and emotional expression. In 3 experiments, we investigated how these features are processed in a top-down manner when task instructions determine the relevance of features, and in a bottom-up manner when the stimulus features themselves determine process priority. In Experiment 1, participants learned to respond with approach-avoidance movements to faces that presented both emotion and colour features. For each participant, only one (...) of these two features was task-relevant while the other one could be ignored. In contrast to our predictions, we found better learning of task-irrelevant colour when emotion was task-relevant than vice versa. Experiment 2 showed that the learning of task-irrelevant emotional information was improved in general when participants’ awareness was increased by adding NoGo-trials. Experiment 3 replicated these results... (shrink)

This paper proposes an experimental investigation of the use of vague predicates in dynamic sorites. We present the results of two studies in which subjects had to categorize colored squares at the borderline between two color categories (Green vs. Blue, Yellow vs. Orange). Our main aim was to probe for hysteresis in the ordered transitions between the respective colors, namely for the longer persistence of the initial category. Our main finding is a reverse phenomenon of enhanced contrast (i.e. negative hysteresis), (...) present in two different tasks, a comparative task involving two color names, and a yes/no task involving a single color name, but not found in a corresponding color matching task. We propose an optimality-theoretic explanation of this effect in terms of the strict-tolerant framework of Cobreros et al. (J Philos Log 1–39, 2012), in which borderline cases are characterized in a dual manner in terms of overlap between tolerant extensions, and underlap between strict extensions. (shrink)

Uncovers the truth behind the ideas, struggles, and eventually success of Black and Puerto Rican Nationalists regarding key feminist issues of the 1960s, 1970s, and 1980s While most people believe that the movement to secure voluntary reproductive control for women centered solely on abortion rights, for many women abortion was not the only, or even primary, focus. Jennifer Nelson tells the story of the feminist struggle for legal abortion and reproductive rights in the 1960s, 1970s, and early 1980s through the (...) particular contributions of women of color. She explores the relationship between second-wave feminists, who were concerned with a woman's right to choose, Black and Puerto Rican Nationalists, who were concerned that Black and Puerto Rican women have as many children as possible “for the revolution,” and women of color themselves, who negotiated between them. Contrary to popular belief, Nelson shows that women of color were able to successfully remake the mainstream women's liberation and abortion rights movements by appropriating select aspects of Black Nationalist politics—including addressing sterilization abuse, access to affordable childcare and healthcare, and ways to raise children out of poverty—for feminist discourse. (shrink)

Este artículo propone una mirada más incluyente en relación al concepto de Racismo Ambiental, combatido tanto por marxistas ortodoxos -que ven en él la negación de la lucha de clases- como por gran parte de los movimientos negros -que identifican en él una tentativa de minimizar el combate al racismo en sí. Partiendo de ejemplos ligados a la realidad brasileña, muestra que racismo y prejuicio transcienden el color de nuestras pieles y están incuestionablemente ligados a un modelo de desarrollo que (...) presupone la desigualdad y la negación de la ciudadanía como esenciales para su perpetuación. Sin dejar de lado nuestras luchas específicas y las conquistas inherentes a ellas, el concepto de Racismo Ambiental nos desafía a ampliar nuestras visiones de mundo y a luchar por un nuevo paradigma civilizatorio, por una sociedad igualitaria y justa, en la cual democracia plena y ciudadanía activa no sean derechos de pocos privilegiados, independientemente del color, origen o etnia. (shrink)

If the so-called 'science wars' are futile shouting-matches between extremists, some of the more bewildering skirmishes have been contested in the realm of colour science and culture. Ethnographers, postmodernists, and Wittgensteinians stress the specificity of local colour naming strategies, or the peculiarity of objects and emotions with which colours are associated, and may confess lingering attraction to Whorf's idea that cultures carve up an intrinsically unstructured colour space into quite arbitrary linguistic categories. Self-proclaimedly hard-headed biological and evolutionary (...) psychologists, in contrast, argue that the pan-human physiology of colour perception determines our colour categorization, and constrains whatever minimal linguistic variability there is. Don Dedrick's wonderful study in the philosophy of cognitive science offers not only a careful survey of the relevant evidence in this stand-off, but also a persuasive set of tools for thinking the issues through quite differently, and for avoiding the dichotomous terms in which the debates have previously been couched. The book should be essential reading for colour scientists, and for philosophers interested in links between cognition and culture; and it offers useful advanced introductions to detailed technical literatures in psychophysics, colour linguistics, and cognitive anthropol. (shrink)

How to enable the computer to accurately analyze the emotional information and story background of characters in Qin opera is a problem that needs to be studied. To promote the artistic inheritance and cultural emotion color dissemination of Qin opera, an emotion analysis model of Qin opera based on attention residual network is presented. The neural network is improved and optimized from the perspective of the model, learning rate, network layers, and the network itself, and then multi-head attention is added (...) to the ResNet to increase the recognition ability of the model. The convolutional neural network is optimized from the internal depth, and the fitting ability and stability of the model are enhanced through the ResNet model. Combined with the attention mechanism, the expression of each weight information is strengthened. The multi-head attention mechanism is introduced in the model and a multi-head attention ResNet, namely, MHAtt_ResNet, is proposed. The network structure can effectively identify the features of the spectrogram, improve the weight information of spectrogram features, and deepen the relationship between distant information in long-time series. Through experiments, the proposed model has high emotional classification accuracy for Qin opera, and with the increase of the number of data sets, the model will train a better classification effect. (shrink)

Classification -- Creed -- Country -- Color -- Class -- Culture -- Coda.

where _x_ stands for a visible object and _y_ for a perceiving subject (the reference to a time may be neglected).¹ I take here ”character” in the sense of Kaplan (1977) as substantiated by Haas-Spohn (1995 and Chapter 14 in this book)). The point of using Kaplan’s framework is simple, but of utmost importance: It provides a scheme for clearly separating epistemological and metaphysical issues, for specifying how the two domains are related, and for connecting them to questions concerning meaning (...) where confusions are often only duplicated. All this is achieved by it better than by any alternative I know of.². (shrink)

Rationalizing the perceptual effects of spectral stimuli has been a major challenge in vision science for at least the last 200 years. Here we review evidence that this otherwise puzzling body of phenomenology is generated by an empirical strategy of perception in which the color an observer sees is entirely determined by the probability distribution of the possible sources of the stimulus. The rationale for this strategy in color vision, as in other visual perceptual domains, is the inherent ambiguity of (...) the real-world origins of any spectral stimulus. (shrink)

In response to Zack’s “White Privilege​ and Black Rights”, I consider her account of the hunting schema in light of police violence against black women. I argue that although Zack provides us with a compelling account of racial profiling and police brutality, the emotional aspect she attributes to the hunting schema is too charitable. I then claim that Zack’s hunting schema fails to account for state violence against black women and in doing so she only tells a partial story of (...) comparative injustice as it relates to police brutality of blacks. (shrink)

The evidence is clear and consistent that African Americans and Hispanics are treated differently depending on their skin color within their racial or ethnic group, and yet the surveys that show these results also show very few political or political-psychological patterns as a result of skin color. To investigate why this is so, this paper uses the fact that discriminatory treatment by skin color does not necessarily result in political action or perceptions around that discrimination to raise the larger question (...) of when racial or ethnic groups see and protest unfairness, and when they do not. My hypotheses about why this occurs differ for blacks and Latinos. In the former case, the ideology of group consciousness is strong enough, and embarrassment about internal skin-color hierarchy is powerful enough, that blacks don't want to recognize differences by skin color. Light-skinned blacks, in fact, may be more racially identified than dark-skinned blacks — so their economic and social advantages are offset by their commitments to their race as a whole, and they behave politically like dark-skinned blacks do. The case of Hispanics may be better explained in terms of a weak sense of group consciousness rather than a strong one. That is, Latinos may not think of themselves as a group, such that they see skin color differentiation as a consequence of being members of different races rather than as a form of discrimination against some members of "their" group. (shrink)

This entry outlines physicalism about color, and objections to the effect that it cannot meet various desiderata on a metaphysics of color.

Are colors features of objects “out there in the world” or are they features of our inner experience and only “in our head?” Color perception has been the focus of extensive philosophical and scientific debate. In this paper we discuss the limitations of the view that Chalmers’ (2006) has characterized as Primitivism, and we develop Marmodoro’s (2006) Constitutionalism further, to provide a metaphysical account of color perception in terms of causal powers. The result is Power-based Constitutionalism, the view that colors (...) are (multi-track and multi-stage) powers of objects, whose (full) manifestations depend on the mutual manifestation of relevant powers of perceivers and the perceived objects being co-realized in mutual interaction. After a presentation of the tenets of Power-based Constitutionalism, we evaluate its strengths in contrast to two other recent power-based accounts: John Heil’s (2003, 2012) powerful qualities view and Max Kistler’s (2017) multi-track view. (shrink)

Sellars’s views on the Myth of the Given and the ontological status of secondary qualities, one would have thought, are well-known, even if not always well-understood. One would not have expected his Carus Lectures, then, to offer anything radically new and exciting. The ground that they cover is, after all, familiar—from “Empiricism and the Philosophy of Mind”, from “Philosophy and the Scientific Image of Man”, from “The Identity Approach to the Mind-Body Problem”, and from the ensuing debates with Cornman and (...) with Firth. One would not really have anticipated many surprises. But one would have been wrong. (shrink)

Research on the U.S. women’s movement has documented the difficulties of cross-racial work between White women and women of racial/ethnic minorities. Less understood is how racial/ethnic minorities do cross-racial work among themselves to construct a collective identity of “women of color” that encourages solidarity across race, class, and other statuses. Drawing on research from the reproductive justice movement, I examine how women of color organizations that strive for intersectional praxis negotiate sameness and difference. I identify two different logics at work (...) within women of color organizations: the first relies on a presumption of “same difference” that emphasizes similar experiences of gender and race oppression; the second accords greater recognition to the “difference-in-sameness” that structures constituents’ lived experiences. While the former can reproduce precisely those forms of silencing and exclusion that women of color organizations seek to challenge, the second remains a ongoing process. The article concludes that women of color organizations must strive continuously to actively negotiate, rather than assume, commonality if they are to avoid reproducing various forms of marginalization and inequality. (shrink)

This book comprises material on colour which was written by Wittgenstein in the last eighteen months of his life. It is one of the few documents which shows him concentratedly at work on a single philosophical issue. The principal theme is the features of different colours, of different kinds of colour and of luminosity—a theme which Wittgenstein treats in such a way as to destroy the traditional idea that colour is a simple and logically uniform kind of (...) thing. This edition consists of Wittgenstein's basic German text, together with an English translation. (shrink)

In this article, I argue that popular explanatory frameworks in perceptual psychology suggest the truth of color realism. I focus on perceptual judgments and their evidential basis: namely perceptual representation. I first draw a distinction between two sorts of normativities with respect to which we can evaluate representational capacities and systems: biological and psychological normativities. The former is defined in terms of evolutionary fitness, and the latter in terms of representational accuracy. Generally, representational systems achieve psychological and biological success hand (...) in hand, but in special circumstances, a representational system can be such that it serves the organism best while not generally furnishing the organism with accurate representations. I argue in this essay that an explanation how and why our ancestors developed color vision that cleaves its biological success conditions from its psychological success conditions cannot be given unless we are prepared to say the same about the visual perception of distance and other geometrical features of the world. Moreover, it is difficult to see how the anti-realist could begin to specify psychological success conditions for color representations. Hence, we ought to accept the biological utility of color vision as evidence that it is typically representationally successful, and regard our perceptual judgments about color as generally true. (shrink)

John Cottingham; XIII*—Descartes on Colour, Proceedings of the Aristotelian Society, Volume 90, Issue 1, 1 June 1990, Pages 231–246, https://doi.org/10.1093/ari.

The aim of this study was to test red - green dichromats' ability to discriminate between illuminant and surface-reflectance changes in natural scenes. Stimuli were simulations of natural scenes presented on a colour monitor with 10-bit resolution per gun. The natural scenes were obtained with a fast hyperspectral imaging system. Six different scenes (including rocks, foliage, and buildings) were tested. In each trial, two images were presented in sequence, each for 1 s, with no interval. The images differed in (...) the phase of daylight on the scene: first with correlated colour temperature 25 000 K, then 6 700 K. The spectral reflectance of a region in the second image was changed randomly, consistent with a local change in daylight. The observer's task was to decide whether a particular surface in the successive images was the same (pure illuminant change) or different (illuminant change with a surface-reflectance change). The performance of four deuteranopes and five protanopes varied considerably across the scenes tested, with mean colour constancy indices (± 1 SEM) of 0.48 (± 0.13) and 0.19 (± 0.10), respectively (1.0 representing ideal performance). Deuteranopes seemed less disadvantaged than protanopes, performing close to normal with some scenes. (shrink)

This entry outlines relationalism, primitivism, and eliminativism about color and considers objections to each theory.