This article considers distinct ways of understanding the world, referred to in psychology as Functions of Consciousness or as Cognitive Modes, having as the scope of interest epistemology and natural sciences. Inspired by C.G. Jung's Simile of the Spectrum, we consider three basic cognitive modes associated to: (R) embodied instinct, experience, and action; (G) reality perception and learning; and (B) concept abstraction, rational thinking, and language. RGB stand for the primary colors: red, green, and blue. Accordingly, a conceptual map between (...) cognitive modes and primary and secondary colors is built based on the physics and physiology of color perception and epistemological characteristics of the aforementioned cognitive modes, leading to logical relations structured as an Hexagon of Opposition. Finally, this model of cognitive modes is applied to the analysis and interpretation of some important episodes in the historical development of physics and technology. (shrink)

This article considers distinct ways of understanding the world, referred to in psychology as functions of consciousness or as cognitive modes, having as the scope of interest epistemology and natural sciences. Inspired by C.G. Jung’s simile of the spectrum, we consider three basic cognitive modes associated to: (R) embodied instinct, experience, and action; (G) reality perception and learning; and (B) concept abstraction, rational thinking, and language. RGB stand for the primary colors: red, green, and blue. Accordingly, a conceptual map between (...) cognitive modes and primary and secondary colors is built based on the physics and physiology of color perception and epistemological characteristics of the aforementioned cognitive modes, leading to logical relations structured as an hexagon of opposition. Finally, this model of cognitive modes is applied to the analysis and interpretation of some important episodes in the historical development of physics and technology. (shrink)

The article discusses the characterization of the visualization of visible reality in Crime and Punishment by Fyodor Dostoyevsky. The author suggests that semiotic and legal analysis should be used to understand the meaning of the color code of the novel. Semiotic discourse reduces the ambiguity, uncertainty, and expression of the color code to a conscious, discrete, and conditioned meaning of individual colors. Legal analysis helps to better understand the main idea and other aspects of the novel, encoded in (...) colors. Psychological, personal associations, and symbolic methods are used to reveal direct and indirect meaning of the colors used by Dostoyevsky. The basic characterization of colors proposed by Goethe is employed as a key for color decoding. The article also establishes the correlation of the color code of the novel with the colors of the flags of the Russian Empire and the German Confederation. The message and meaning of the same colors of these national flags are contrasted. The interpretation is complemented by the author’s drawings, which enable to visualize the color code that stores and transmits information about national identity. (shrink)

Alterations in dural venous sinus hemodynamics have recently been suggested as the major contributing factors in venous pulsatile tinnitus. Nevertheless, little is known about the association between real-time alterations in hemodynamics and the subjective perception of venous PT. This study aimed to investigate the hydroacoustic correlations among diverticular vortices, mainstream sinus flow, and PT using various Doppler ultrasound techniques. Nineteen venous PT patients with protrusive diverticulum were recruited. The mainstream sinus and diverticular hemodynamics before and after ipsilateral internal jugular vein (...) compression were investigated using an innovative retroauricular color-coded Doppler method to examine the correlation between the disappearance of PT and hemodynamic alterations. To reveal the hydroacoustic characteristics of disparate segments of venous return, a computational fluid dynamics technique combined with the transcranial color-coded Doppler method was performed. When the ipsilateral IJV was compressed, PT disappeared, as the mean velocity of mainstream sinus flow and diverticular vortex decreased by 51.2 and 50.6%, respectively. The vortex inside the diverticulum persisted in 18 of 19 subjects. The CFD simulation showed that the flow amplitude generated inside the transverse–sigmoid sinus was segmental, and the largest flow amplitude difference was 20.5 dB. The difference in flow amplitude between the mainstream sinus flow and the diverticular flow was less than 1 dB. In conclusion, the sensation of PT is closely associated with the flow of kinetic energy rather than the formation of a vortex, whereby the amplitude of PT is correlated to the magnitude of the flow velocity and pressure gradient. Additionally, the range of velocity reduction revealed by the RCCD method may serve as a presurgical individual baseline curative marker that may potentially optimize the surgical outcomes. (shrink)

In the present study, we tested the effectiveness of color coding on the programming learning of students who were learning from video lectures. Effectiveness was measured using multimodal physiological measures, combining eye tracking and electroencephalography. Using a between-subjects design, 42 university students were randomly assigned to two video lecture conditions. The participants’ eye tracking and EEG signals were recorded while watching the assigned video, and their learning performance was subsequently assessed. The results showed that the color-coded design (...) was more beneficial than the grayscale design, as indicated by smaller pupil diameter, shorter fixation duration, higher EEG theta and alpha band power, lower EEG cognitive load, and better learning performance. The present findings have practical implications for designing slide-based programming learning video lectures; slides should highlight the format of the program code using color coding. (shrink)

Western scholars have speculated for centuries about the perceptual capacities of non-western peoples, of children, and of animals; and, more recently, about the representation and communication of perceptual experience in language. Colour is a particularly intriguing domain within which to study the communication of experience because the physical stimulation necessary for the perception of colour, light radiation, can be specified with precision, and creates an aura of rigour and certainty.

There is no natural and pretheoretical classification of colour appearances into hue, saturation, brightness, unique hues, and so on. Rather, our theoretical insights into the coding of colour have reciprocally shaped the way we talk about colour appearances. Opponency is only one of many fundamental aspects of colour coding, and we are hardly justified in ascribing some theoretical prominance to it.

The chapter argues from an ethology-inspired internalist perspective that ‘colour’ is not a homogeneous and autonomous attribute, but rather plays different roles in different conceptual forms underlying perception. It discusses empirical and theoretical evidence that indicates that core assumptions underlying orthodox conceptions are grossly inadequate. The assumptions pertain to the idea that colour is a kind of autonomous and unitary attribute. It is regarded as unitary or homogeneous by assuming that its core properties do not depend on the type of (...) ‘perceptual object’ to which it pertains and that‘colour per se’ constitutes a natural attribute in the functional architecture of the perceptual system. It is regarded as autonomous by assuming that it can be studied in isolation of other perceptual attributes. More generally, the chapter argues on the bases of corresponding empirical and theoretical evidence that perception cannot be understood as the ‘recovery’ of physical world structure from sensory structure by input-based computational processes. Rather, the sensory input serves as a kind of sign for biologically relevant aspects of the external world that activates biologically given conceptual forms with their internal parameters. Although the sensory input is a causally necessary requirement for the activation of conceptual forms, the perceptual computations triggered are under the control of an internal programme based on a set of conceptual forms. (shrink)

The chapter argues from an ethology-inspired internalist perspective that ‘colour’ is not a homogeneous and autonomous attribute, but rather plays different roles in different conceptual forms underlying perception. It discusses empirical and theoretical evidence that indicates that core assumptions underlying orthodox conceptions are grossly inadequate. The assumptions pertain to the idea that colour is a kind of autonomous and unitary attribute. It is regarded as unitary or homogeneous by assuming that its core properties do not depend on the type of (...) ‘perceptual object’ to which it pertains and that‘colour per se’ constitutes a natural attribute in the functional architecture of the perceptual system. It is regarded as autonomous by assuming that it can be studied in isolation of other perceptual attributes. More generally, the chapter argues on the bases of corresponding empirical and theoretical evidence that perception cannot be understood as the ‘recovery’ of physical world structure from sensory structure by input-based computational processes. Rather, the sensory input serves as a kind of sign for biologically relevant aspects of the external world that activates biologically given conceptual forms with their internal parameters. Although the sensory input is a causally necessary requirement for the activation of conceptual forms, the perceptual computations triggered are under the control of an internal programme based on a set of conceptual forms. (shrink)

Colour is, according to prevailing orthodoxy in perceptual psychology, a kind of autonomous and unitary attribute. It is regarded as unitary or homogeneous by assuming that its core properties do not depend on the type of ‘perceptual object’ to which it pertains and that‘colour per se’ constitutes a natural attribute in the functional architecture of the perceptual system. It is regarded as autonomous by assuming that it can be studied in isolation of other perceptual attributes. These assumptions also provide the (...) pillars for the technical field of colorimetry, and have proved very fruitful for neurophysiological investigations into peripheral colour coding. They also have become, in a technology-driven cultural process of abstraction, part of our common-sense conception of colour. With respect to perception theory, however, both assumptions are grossly inadequate, on both empirical and theoretical grounds. All the same, the idea of an internal homogeneous and autonomous attribute of ‘colour per se’, mostly taken not as an empirical hypothesis but as a kind of truism, became a guiding idea in perceptual psychology. Here, it has impeded the identification of relevant theoretical issues and consequently has become detrimental for the development of explanatory frameworks for the role of ‘colour’ within the structure of our perceptual system. The chapter argues that enquiries into colour perception cannot be divorced from general enquiries into the structure of the conceptual forms underlying perception. (shrink)

Color coding is used to guide attention in computer displays for such critical tasks as baggage screening or air traffic control. It has been shown that a display object attracts more attention if its color is more similar to the color for which one is searching. However, what does similar precisely mean? Can we predict the amount of attention that a display color will receive during a search for a given target color? To tackle (...) this question, two color‐search experiments measuring the selectivity of saccadic eye movements and mapping out its underlying color space were conducted. A variety of mathematical models, predicting saccadic selectivity for given target and display colors, were devised and evaluated. The results suggest that applying a Gaussian function to a weighted Euclidean distance in a slightly modified HSI color space is the best predictor of saccadic selectivity in the chosen paradigm. Hue and intensity information by itself provides a basis for useful predictors, spanning a possibly spherical color space of saccadic selectivity. Although the current models cannot predict saccadic selectivity values for a wide variety of visual search tasks, they reveal some characteristics of color search that are of both theoretical and applied interest, such as for the design of human–computer interfaces. (shrink)

What is the relationship between color experience and color? Here, I defend the view that it is semantic: color experience denotes color in a code innately known by the perceiver. This semantic theory contrasts with a variety of theories according to which color is defined as the cause of color experience (in a special set of circumstances). It also contrasts with primary quality theories of color, which treat color as a physical quantity. (...) I argue that the semantic theory better accounts for the kinds of knowledge we have regarding both the color of objects that we see and of the colors themselves. (shrink)

Farhad Dalal argues that people differentiate between races in order to make a distinction between the "haves" and "must-not-haves", and that this process is cognitive, emotional and political rather than biological. Examining the subject over the past thousand years, Race, Colour and the Process of Racialisation covers theories of racism and a general theory of difference based on the works of Fanon, Elias, Matte-Blanco and Foulkes, as well as application of this theory to race and racism. Farhad Dalal concludes that (...) the structures of society are reflected in the structures of the psyche, and both of these are colour coded. This book will be invaluable to students, academics and practitioners in the areas of psychoanalysis, group analysis, psychotherapy and counseling. (shrink)

The qualitative and quantitative properties of color sensations and neuronal color coding are discussed in relation to physiological color exchanges and their evolutionary constraints. Based on the identity mind/matter thesis, additional physical measurements on color sensations are described that will allow us, at least in principle, to compare the qualitative properties of color sensations in different brains.

Probably colour is the best worked-out example of allegedly neurophysiologically innate response categories determining percepts and percepts determining concepts, and hence biology fixing the basic categories implicit in the use of language. In this paper I argue against this view and I take C. L. Hardin's Color for Philosophers [1988] as my main target. I start by undermining the view that four unique hues stand apart from all other colour shades (Section 2) and the confidence that the solar spectrum (...) is naturally divided into four categories (Section 3). For such categories to be truly universal, they have to be true for all peoples and in Section 4 I show that Berlin and Kay's [1969] widely quoted theory of basic colour categories is not sufficiently supported to lend it any credibility.Having disposed of the view that inspection of language or ‘pure’ perception unveils the universal colour categories. I turn to neurophysiological and psychophysical theories of colour vision to see whether they provide a more solid basis for deciding what the innate response categories are. In Section 5 I show that Hardin's account of the opponent-process theory neither supports his view that ‘colour-coding’takes place early in the visual neural pathway, nor his view that knowledge of colour vision science will help us solve many philosophical mysteries about colour.In Section 6 I give a more detailed review of what is known today about the neurophysiology of colour vision and I show that there's nothing in the brain which could be called a colour module, let alone a module with homunculi for particular basic colour categories. In Section 7 I show that psychophysical models do not support such rigid constraints on category formation either. Hence (Section 8), at least in the case of colour, current science supports a plasticity in the formation of categories that goes far beyond the requirements of those naturalistic philosophers who would like to ground primitive concepts in biology. (shrink)

This chapter discusses color blindness and how it can be considered a guide and test for theories of normal vision. There are a multitude of stories to be told about the physiology of the receptor pigments of the eye and the genes that code for them, about the various kinds of cells in the retina and elsewhere in the visual system, and about color processing in the brain. It is a topic on which psychologists, physicists, biologists, and neurophysiologists (...) have reason to be proud and glad of the convergence of interests and views. Color blindness might, at first, seem just a peripheral abnormality, but it has often been both a guide to the nature of normal color vision and a test application for theories of it. It has the potential to provide cases where the various components of a complex process that are either hard or impossible to separate artificially are found already separated in nature. (shrink)

While symbolic colour use has always played a conspicuous role in science research and education, the use of colour in historic diagrams remains a lacuna in the history of science. Investigating the colour use in diagrams often means uncovering a whole cosmology that is not otherwise explicit in the diagram itself. The periodic table is a salient and iconic example of non-mimetic colour use in science. Andreas von Antropoff's (1924) rectangular table of recurrent rainbow colours is famous, as are Alcindo (...) Flores Cabral's (1949) application of colour in his round snail form, using the RGB scheme, and Mazurs's (1967) pine tree system, consisting of warm and cold colours that he attributed to specific groups of elements—an attribution that we can relate back to humoralism and alchemy. From the first periodic tables in the 19th century, individual researchers have used different colour regimes. While standardization may play an obvious role in chemistry and its diagrams, all the more impressive is the anarchistic use of colour in the various diagrams which continue to be created. This article focuses on periodic tables in chemical journals and text books, and explores and compares the development of colour codes found in the few existing polychrome diagrams from the 1920s to the 1970s. (shrink)

In this paper, we give a classification of ℵ0-categorical coloured linear orders, generalizing Rosenstein's characterization of ℵ0-categorical linear orderings. We show that they can all be built from coloured singletons by concatenation and ℚn-combinations . We give a method using coding trees to describe all structures in our list.

Facial appearance changes with age and health affecting skin color as well as facial and head hair. Yet somehow the brain is able to see past shared structure and dynamic deformations to focus on subtle details that distinguish one face from another. This article argues that the brain takes an efficient approach to this problem using prior knowledge about the structure of faces in its analysis. It employs intrinsic norms to focus on subtle variations in the shared face configuration (...) that differentiate one face from another. The study reviews evidence that the brain uses multiple norms to extract face identity that these norms are shaped by visual experience, and that norm-based coding is well-suited to meeting the challenges of image-based face perception mentioned above. By encoding faces with reference to stored perceptual norms the visual system can focus on what is unique to each individual, allowing for the discrimination of thousands of faces despite their similarity. (shrink)

Edelman suggests that any shape is encoded by an excitation vector with components corresponding to excitations of corresponding neuronal modules. This results in discrimination of stimuli in a shape space of low dimensionality. Similar vector encoding is present in color vision. Red-green, blue-yellow, bright and dark neurons are modules that represent a number of different color stimuli in color space of low dimensionality. Vector encoding allows effective computation of color differences and color similarities. Such a (...) neuronal vector-encoding approach has also been applied to the perception of visual movement, line orientation, and stereopsis. (shrink)

The various social functions of color language are only realized through the conveyance of information and coded messages. In other words, only after information is conveyed that deals with the basic issues of social identity and social meaning—namely "Where do I come from?" and "Who am I?"—are the social functions of color language actually realized, to wit expressing individual social attributes, manifesting aesthetic sensibilities, and displaying individual character and personality.

The various social functions of color language are only realized through the conveyance of information and coded messages. In other words, only after information is conveyed that deals with the basic issues of social identity and social meaning—namely "Where do I come from?" and "Who am I?"—are the social functions of color language actually realized, to wit expressing individual social attributes, manifesting aesthetic sensibilities, and displaying individual character and personality.

Our understanding of human visual perception generally rests on the assumption that conscious visual states represent the interaction of spatial structures in the environment and our nervous system. This assumption is questioned by circumstances where conscious visual states can be triggered by external stimulation which is not primarily spatially defined. Here, subjective colors and forms are evoked by flickering light while the precise nature of those experiences varies over flicker frequency and phase. What’s more, the occurrence of one subjective experience (...) appears to be associated with the occurrence of others. While these data indicate that conscious visual experience may be evoked directly by particular variations in the flow of spatially unstructured light over time, it must be assumed that the systems responsible are essentially temporal in character and capable of representing a variety of visual forms and colors, coded in different frequencies or at different phases of the same processing rhythm. (shrink)

CHAPTER ONE Is the Sex of the Knower Epistemologically Significant? The Question A question that focuses on the knower, as the title of this chapter does, ...

Background: Healthcare professionals follow codes of ethics, making them responsible for providing holistic care to all disaster victims. However, this often results in ethical dilemmas due to the need to provide rapid critical care while simultaneously attending to a complex spectrum of patient needs. These dilemmas can cause negative emotions to accumulate over time and impact physiological and psychological health, which can also threaten nurse–patient relationships. Aim: This study aimed to understand the experience of nurses who cared for burn victims (...) of the color-dust explosion and the meaning of ethical relationships between nurse and patient. Research design: A qualitative descriptive study using a phenomenological approach. Participants and research context: Clinical nurses who provided care to the patients of the Formosa color-dust explosion of 2015 were selected by purposive sampling from a medical center in Taiwan. Data were collected using individual in-depth semi-structured interviews. Audiotaped interviews were transcribed and analyzed using Colaizzi’s method. Ethical considerations: This study was approved by the institutional review board of the study hospital. All participants provided written informed consent. Findings Three main themes described the essence of the ethical dilemmas experienced by nurses who cared for the burn-injured patients: the calling must be answered, the calling provoked my feelings, and the calling called out my strengths. Conclusions: Healthcare providers should recognize that nurses believed they had an ethical responsibility to care for color-dust explosion burn victims. Understanding the feelings of nurses during the care of patients and encouraging them to differentiate between the self and the other by fostering patient–nurse relationships based on intersubjectivity could help nurses increase self-care and improve patient caregiving. (shrink)

Spatial facilitation has been observed with luminance-defined, achromatic stimuli on achromatic backgrounds as well as with targets and inducers defined by colour contrast. This paper reviews psychophysical results from detection experiments with human observers showing the conditions under which spatially separated contour inducers facilitate the detection of simultaneously presented target stimuli. The findings point towards two types of spatial mechanisms: (i) Short-range mechanisms that are sensitive to narrowly spaced stimuli of small size and, at distinct target locations, selective to the (...) contrast polarity of targets and inducers. (ii) Long-range mechanisms that are triggered by longer stimuli, generate facilitation across wider spatial gaps between targets and inducers, and are insensitive to their contrast polarity. Spatial facilitation with chromatic stimuli requires a longer inducer exposure than spatial facilitation with achromatic stimuli, which is already fully effective at inducer exposures of 30 ms. This difference in temporal dynamics indicates some functional segregation between mechanisms for colour and luminance contrast in the perception of space. (shrink)

Arguing that ecological thinking can animate an epistemology capable of addressing feminist, multicultural, and other post-colonial concerns, this book critiques the instrumental rationality, hyperbolized autonomy, abstract individualism, and exploitation of people and places that western epistemologies of mastery have legitimated. It proposes a politics of epistemic location, sensitive to the interplay of particularity and diversity, and focused on responsible epistemic practices. Starting from an epistemological approach implicit in Rachel Carson’s scientific projects, the book draws, constructively and critically, on ecological theory (...) and practice, on (post-Quinean) naturalized epistemology, and on feminist and post-colonial theory. Analyzing extended examples from developmental psychology, from medicine and law, and from circumstances where vulnerability, credibility, and public trust are at issue, the argument addresses the constitutive part played by an instituted social imaginary in shaping and regulating human lives. The practices and examples discussed invoke the responsibility requirements central to this text’s larger purpose of imagining, crafting, articulating a creative, innovative, instituting social imaginary, committed to interrogating entrenched hierarchical social structures, en route to enacting principles of ideal cohabitation. (shrink)

Having adequate knowledge of the world is not just a matter of survival but also one of obligation. This obligation to "know well" is what philosophers have termed "epistemic responsibility." In this innovative and eclectic study, Lorraine Code explores the possibilities inherent in this concept as a basis for understanding human attempts to know and understand the world and for discerning the nature of intellectual virtue. By focusing on the idea that knowing is a creative process guided by imperatives of (...) epistemic responsibility, Code provides a fresh perspective on the theory of knowledge. From this new perspective, Code poses questions about knowledge that have a different focus from those traditionally raised in the two leading epistemological theories, foundationalism and coherentism. While not rejecting these approaches, this new position moves away from a primary concentration on determinate products and towards an examination of ever-changing processes. Arguing that knowledge never exists as an ungrounded abstraction but rather emerges through dialogue between variously authoritative "knowers" situated within particular social and historical contexts, she draws extensively on examples from lived social experience to illustrate the ways in which human beings have long tried to recognize and meet their epistemic responsibilities. This edition of Epistemic Responsibility includes a new preface from Lorraine Code"--Provided by the publisher. (shrink)

This chapter focuses on the incompatibility of afterimage colors. Several quasilogical, semantic, and metaphysical questions having to do with incompatibility come up in color theory, and the problem is so complicated and fragile that it is argued here that, despite some marvelous work on the topic, the problem remains to be sorted out. Every naive subject who encounters afterimages without prejudice has agreed that they have color; this is mentioned here because it is the initial and also the (...) commonsense view. However, accepting that a physical account of color incompatibility is right for physical colors makes an account for the incompatibility of afterimage colors improbable. One can provide a physiological account based on opponent processes, but this will deliver only a contingent truth or a necessity relative only to a particular retinal structure and postretinal neural coding. (shrink)

The arguments in this book are informed at once by the moral-political implications of how knowledge is produced and circulated and by issues of gendered subjectivity. In their critical dimension, these lucid essays engage with the incapacity of the philosophical mainstream's dominant epistemologies to offer regulative principles that guide people in the epistemic projects that figure centrally in their lives. In its constructive dimension, ____Rhetorical__ ____Spaces__ focuses on developing productive, case-by-case analyses of knowing other people in situations where social-political inequalities (...) create asymmetrical patterns of epistemic power and privilege. (shrink)

Feminist epistemologists who attempt to refigure epistemology must wrestle with a number of dualisms. This essay examines the ways Lorraine Code, Sandra Harding, and Susan Hekman reconceptualize the relationship between self/other, nature/culture, and subject/object as they struggle to reformulate objectivity and knowledge.

In this lively and accessible book Lorraine Code addresses one of the most controversial questions in contemporary theory of knowledge, a question of fundamental concern for feminist theory as well: Is the sex of the knower epistemologically significant? Responding in the affirmative, Code offers a radical alterantive to mainstream philosophy's terms for what counts as knowledge and how it is to be evaluated. Code first reviews the literature of established epistemologies and unmasks the prevailing assumption in Anglo-American philosophy that "the (...) knower" is a value-free and ideologically neutral abstraction. Approaching knowledge as a social construct produced and validated through critical dialogue, she defines the knower in light of a conception of subjectivity based on a personal relational model. Code maps out the relevance of the particular people involved in knowing: their historical specificity, the kinds of relationships they have, the effects of social position and power on those relationships, and the ways in which knowledge can change both knower and known. In an exploration of the politics of knowledge that mainstream epistemologies sustain, she examines such issues as the function of knowledge in shaping institutions and the unequal distribution of cognitive resources. What Can She Know? will raise the level of debate concerning epistemological issues among philosophers, political and social scientists, and anyone interested in feminist theory. (shrink)