Showing posts with label color. Show all posts
Showing posts with label color. Show all posts

Wednesday, April 16, 2025

Control Fatigue


Humans tend to do this thing where they think they're in control of their own thoughts.

Red attire's competitive edge has faded in combat sports, new study finds
Dec 2024, phys.org

The team looked at results from seven Summer Olympic Games (1996–2020) and nine World Boxing Championships (2005–2021). With over 6,500 individual competition outcomes assessed, the team then focused on close contests, with a narrow points difference. These were where red was expected to tip the balance between winning and losing.

Up to 2005, when the original study was published, there was some advantage to red clothing, with 56% of victories between closely matched competitors going to the athlete in red.

However, more recent data up to 2020 show that the advantage disappeared, even in close contests.

Before 2005, combat sport referees played a larger role in assigning points, whereas today, scoring is increasingly supported by technology. Also, clarification of rules in recent times means that there is less room for interpretation when awarding points.

via Durham University Department of Anthropology: Leonard S. Peperkoorn et al, Meta-analysis of the red advantage in combat sports, Scientific Reports (2024). DOI: 10.1038/s41598-024-81373-3

Image credit: AI Art - A Crowd From View - 2025 - you have to zoom in on these images to see the real value they hold


Simple mathematical model predicts development of cultural structures observed in human societies
Jan 2025, phys.org

RIKEN killing it as usual:  

Two parameters of population size and cultural mutation rate (difference between parents' and children's traits) affect the development of social structures.

via RIKEN Center for Brain Science: Kenji Itao et al, Formation of human kinship structures depending on population size and cultural mutation rate, Proceedings of the National Academy of Sciences (2024). DOI: 10.1073/pnas.2405653121


Spanish 'running of the bulls' festival reveals crowd movements can be predictable, above a certain density
Feb 2025, phys.org

Crowd dynamics - They used cameras and a mathematical model where people are so packed that crowds can be treated as a continuum like a fluid, and found the density of the crowds changed from two people per square meter in the hour before the festival began to six people per square meter during the event, and that crowds could reach a maximum density of 9 people per square meter, above which pockets of several hundred people spontaneously behaved like one fluid that oscillated in a predictable time interval of 18 seconds with no external stimuli (such as pushing).

They compared the San Fermín festival in Spain to that from the 2010 Duisburg Love Parade in Germany, and found the same oscillations were observed. 

via ENS de Lyon, CNRS: François Gu et al, Emergence of collective oscillations in massive human crowds, Nature (2025). DOI: 10.1038/s41586-024-08514-6

Wednesday, January 15, 2025

Culture as Metaphysical Superorganism


This is about human things, but mediated by culture, which is more powerful than engines, or fuel, or multiplexed photonic quantum computers:

Aboriginal ritual passed down over 12,000 years, cave find shows
July 2024 phys.org

My god, a 12,000 years old tradition:

They discovered some 12,000 year old sticks in a cave. The discovery was made inside Cloggs Cave in the foothills of the Victorian Alps in Australia's southeast, in a region long inhabited by the Gunaikurnai people. An anthropologist from the 1880s recorded the rituals of Gunaikurnai medicine men and women. One ritual involved tying something that belonged to a sick person to the end of a throwing stick smeared in human or kangaroo fat. The stick was thrust into the ground before a small fire was lit underneath. The medicine men would then chant the name of the sick person, and once the stick fell, the charm was complete. The sticks used in the ritual were made of casuarina wood. And the sticks found appear to be the same sticks, so they're evidence that this tradition has been happening since then, and was passed down by oral tradition, but since the advent of the written word, we've lost a connection to this. 

via Monash University and Gunaikurnai Land and Waters Aboriginal Corporation: Bruno David et al, Archaeological evidence of an ethnographically documented Australian Aboriginal ritual dated to the last ice age, Nature Human Behaviour (2024). DOI: 10.1038/s41562-024-01912-w



Culture, and fashion in particular, reduces social conflict, enabling a more complex society:

Colorful traits in primates ease tensions between groups, data suggest
Aug 2024, phys.org

"Species that shared more space with their neighbors had significantly greater differences in ornamentation between the sexes. In species where groups frequently interact, males are more likely to sport flashy traits that set them apart from females."

Vivid physical traits might help to reduce conflict between groups, possibly by allowing them to quickly assess potential rivals from a distance.

via Department of Evolutionary Biology and Environmental Studies at University of Zurich and University of Western Australia: Cyril C Grueter et al, The role of between-group signaling in the evolution of primate ornamentation, Evolution Letters (2024). DOI: 10.1093/evlett/qrae045


We should be reminded, via Kevin Kelly's What Technology Wants (2011) that technological evolution follows relatively strict trajectory, independent on the civilization, so that bone needles always come before bellows (how else do you sew the skins to make the bellows), and ceramics before metal (metal kilns are much hotter than ceramic kilns, and require the advent of bellows). 

The beginnings of fashion: Paleolithic eyed needles and the evolution of dress
Jun 2024, phys.org

"Eyed needle tools are an important development in prehistory because they document a transition in the function of clothing from utilitarian to social purposes,"

"What intrigues me is the transition of clothing from being a physical necessity in certain environments, to a social necessity in all environments."

The earliest known eyed needles appeared approximately 40,000 years ago in Siberia. Eyed needles are more difficult to make when compared to bone awls, which sufficed for creating fitted clothing. Bone awls are tools made of animal bones that are sharpened to a point. Eyed needles are modified bone awls, with a perforated hole (eye) to facilitate the sewing of sinew or thread.

The innovation of eyed needles may reflect the production of more complex, layered clothing, as well as the adornment of clothes by attaching beads and other small decorative items onto garments, and which may have allowed larger and more complex societies to form, as people could relocate to colder climates while also cooperating with their tribe or community based on shared clothing styles and symbols.

Dr. Gilligan and his co-authors argue that clothing became an item of decoration because traditional body decoration methods, like body painting with ocher or deliberate scarification, weren't possible during the latter part of the last ice age in colder parts of Eurasia, as people were needing to wear clothes all the time to survive.

via University of Sydney: Ian Gilligan, Palaeolithic eyed needles and the evolution of dress, Science Advances (2024). DOI: 10.1126/sciadv.adp2887

Post Script: Read Bernard Rudofsky's Are Clothes Modern? (1944)

Wednesday, January 10, 2024

On the Language of Color


Do people and monkeys see colors the same way?
May 2023, phys.org

Humans can perceive a greater range of blue tones than monkeys.

Recent evolutionary adaptations.

A certain short-wave or blue sensitive cone circuit found in humans is absent in marmosets. It is also different from the circuit seen in the macaque monkey.

via University of Washington School of Medicine, Medical University of Vienna, University of Sydney, and the Save Sight Institute: Yeon Jin Kim et al, Comparative connectomics reveals noncanonical wiring for color vision in human foveal retina, Proceedings of the National Academy of Sciences (2023). DOI: 10.1073/pnas.2300545120



Researchers find languages can acquire new color concepts after exposure to other languages
Nov 2023, phys.org

Among members of the Tsimane' society, who live in a remote part of the Bolivian Amazon rainforest, the researchers found that those who had learned Spanish as a second language began to classify colors into more words, making color distinctions that are not commonly used by Tsimane' who are monolingual.

In the most striking finding, Tsimane' who were bilingual began using two different words to describe blue and green, which monolingual Tsimane' speakers do not typically do. And, instead of borrowing Spanish words for blue and green, they repurposed words from their own language to describe those colors. 

"It's a great example of one of the main benefits of learning a second language, which is that you open a different worldview and different concepts that then you can import to your native language." 

via MIT, Speech and Hearing Bioscience and Technology Program at Harvard, University of Texas at Austin, and the National Eye Institute: Saima Malik-Moraleda et al, Concepts Are Restructured During Language Contact: The Birth of Blue and Other Color Concepts in Tsimane'-Spanish Bilinguals, Psychological Science (2023). DOI: 10.1177/09567976231199742

Older Posts About the Language of Color:


Friday, March 6, 2020

Color Tech


Do you know the difference between Blood Red, Brick Red, Candy Apple Red, Fire Engine Red, Orange Red, Rose Red, Ruby Red, and Tuscan Red? You can thank modern chemistry for that, because before 1800, there was only one Red.*

Color as we know it came from the Industrial Revolution, and by extension the chemical revolution at the tail end of it. Keep in mind that petroleum, the blood of the gods that infused the Industrial Revolution, is made of huge and complex chemicals that can be broken down into thousands of other chemicals. This provided the raw materials for an explosion in color technology.

(Most colors, as well as fragrances, were discovered by accident while scientists tried to find ever-inventive ways to exploit the waste products of coal use.)

At the same time, and for the same petro-logical reasons, the West began its descent into today's disposable culture. Plastics, paints, glazes and dyes began coating every object we came in contact with. The consumer culture was swiftly educated by color-coded crayons, lipstick and home telephones.

A mature, discriminating populace now takes for granted that the rainbow can be divided and subdivided ad infinitum and projected onto any object imaginable. But our technicolor world has downstream problems; it's poisoning local waterways and ecosystems.

This is where biomimetic color comes in. Twenty years ago, biomimetic color was mostly limited to imitating the structural color of peacock tails or butterfly wings. Today, biomimetic color means genetically engineering bacteria to make the colors for us.

For example, researchers might look for genetic codes that produce color, like the blue in a Blue Jay, then Frankenstein those genes into the bacteria, feed it some garbage, and forget about it.

There's even a company doing structural color by making bacteria that change their dimensions or their positions. This would make them be able to change colors depending on their microscale surface textures, and in real-time (i.e., an lcd video, i.e., the screens of the future will be literally alive).

The point here is that we're trying to make things that aren't reliant on petroleum or even petroleum waste products, and bioengineering allows us to still use someone else's waste stream, since the raw materials are now basically E. coli and carbohydrates.

E. coli is a standard choice of organism in these Frankensteining endeavors. So basically E. coli will be to the biotech revolution what the steam engine was to the industrial revolution?

*As a veteran art teacher, I can say that at one point I could differentiate and name, by sight, every pencil in Prismacolor's 150-color pencil set; I could tell their "yellow-orange" from their "orange-yellow" and the 20% French Grey from the 30% French Grey.

Post Script:
Totally unrelated to E. coli machines, this is a nanonscale metal-etching laser that makes the surface a "selective absorber" of light, which means you can make it absorb and reflect any color of the spectrum you want; this is a kind of structural color similar to iridiscent insect skin etc.

Review of The Color Revolution by Regina Lee Blaszcyzk, 2012
https://networkaddress.blogspot.com/2015/07/the-color-revolution.html

The first color we learn to see is Red:
Cultural Evolution of Basic Color Terms
Network Address, 2012
https://networkaddress.blogspot.com/2012/07/cultural-evolution-of-basic-color-terms.html

Green is one of the last colors we "evolved" to see;
And Japan thanks Crayola for being able to now see the color Green:
Seeing Red
Network Address, 2013
https://networkaddress.blogspot.com/2013/06/seeing-red.html

Plasmonic pixels could be used to make non-fading paint
Jun 2016, phys.org
http://phys.org/news/2016-05-plasmonic-pixels-non-fading.html

Color-changing materials could be used to detect structural failure in energy-related equipment
July 2016, phys.org
http://phys.org/news/2016-07-color-changing-materials-failure-energy-related-equipment.html

Partially Unrelated Post Script:
Yarn created from skin cells can be woven into human textiles
Feb 2020, phys.org
https://phys.org/news/2020-02-yarn-skin-cells-woven-human.html

Heal and replace damaged body parts and organs using a fabric that is grown using human skin-producing cells.

Notes:
Lasers etch a 'perfect' solar energy absorber
Feb 2020, phys.org
https://phys.org/news/2020-02-lasers-etch-solar-energy-absorber.html

Making beautiful colours without toxic chemicals
Feb 2020, BBC News
https://www.bbc.com/news/business-51007426

Here's a few companies working in the new world of color:
San Francisco biotech firm Tinctorium, France's Pili and UK-based Colorifix, University of Cambridge and Dutch biotechnology company Hoekmine

Butterfly-inspired nanotech makes natural-looking pictures on digital screens
June 2020, phys.org
https://phys.org/news/2020-06-butterfly-inspired-nanotech-natural-looking-pictures-digital.html


Also first demonstration of black/grey colors in structural color display


Sunday, June 3, 2018

Technicolor Vision

These are all examples of infrared landscape photography. There is a good series of the Congo by Richard Mosse.
Colorblindness has nothing to do with infrared vision; I just thought these pictures were awesome.

There is no cure for colorblindness. There are special tinted glasses that help, but now there are dyed contact lenses. This article explains it more directly than I can:

"...dyed with a non-toxic rhodamine derivative dye. This particular derivative of rhodamine was chosen as it is known for its ability to absorb certain wavelengths of light in the optical spectrum. Researchers found that the dye blocked the band that lies between the red and green wavelengths, which is perceived by two sets of corresponding optical cones simultaneously. The removal of this band through the dyed lens inhibited the simultaneous triggering of the cones designated for green and red wavelength bands, enabling better differentiation between red and green colours."

New development in contact lenses for red-green color blindness using simple dye
Apr 2018, phys.org
Tropical garden infrared landscape photography.

And surreal infrared landscape photography by David Keochkerian.

more nice pictures with no source credited

Friday, June 9, 2017

Color Conspirators

Anybody remember when triangles brainwashed the entire world for like three years? And galaxy print, i.e. indigo-purple-pink.

The people who know what colour you'll like in 2019
Apr 2017, BBC

For those of your who like conspiracy theory, maybe you should know that there are people, in fact entire incorporated business ventures, who's sole purpose is to "offer information on current and future trends in fashion, interior design and lifestyle."

"Know what's next" is the tagline of WGSN, a London-based company. And one aspect of their prescience regards color. And in this linked article above, the woman spotlighted is working on 2019. So yes, there is a global conspiracy to predict and affect the colors you will like years from now.


A couple snips from the article:
Popular colours often reflect what's happening culturally and socially.

The growth of the sharing economy, in which people rent beds, cars and other assets directly from one another, means lighter colours such as pale blues could come into fashion.

"Sharing means lightness, you don't want to be bogged down so you're not looking at a heavy palette." -Laurie Pressman, vice president of the Pantone Color Institute

Colours such as brown, which a couple of decades ago was linked to the earth and dirt but is now associated with coffee and chocolate, reflects the growth of those industries, she says.

---No idea 'sharing was light-colored' but I do remember the world getting browner for a minute, like the whole back-to-the-earth movement, actually, the one that followed the green movement, when people were feeling all guilty that they couldn't live up to their sustainability expectations, and they decided to make all white things brown, to make it look like they were using shitty detergent. jk. But really, even Starbucks changed their paper cups from white to very, very, off-white.

A "vast movement of grey" began to emerge after the 2008 financial crisis.
-Mark Woodman, a product consultant and a former president of US-based colour forecasting trade body Color Marketing Group

The color purple became more popular circa the 2012 US presidential election, when undecided and neutral states began to be identified as purple by the media.


Further, about the practicality of choosing a color-of-the-year:
"Making sure the colours are easily achievable is critically important" -Laurie Pressman, vice president of the Pantone Color Institute

---What does she mean by this, "easily achievable?" I reviewed a book on the birth of color in the modern world, called the Color Revolution, which explains how we take for granted that products are colored consistently. For example, when you buy a telephone (haha) you don't think twice that the hard plastic handset and the flexible rubberized cord are the exact same color, but that was really, really hard to do, because all these things are made with different base materials, so the coloring agents interact differently with each of them.


Finally, favorite:
The names are important too. They (Pantone) almost chose "pea soup" as the color for 2017. Settled on "greenery" instead.


And some research for good measure:
ice hockey teams wearing darker-coloured tops were more likely to be penalised for aggressive fouls
-study link

wearing the colour red could increase the probability of winning sporting contests
-study link

Note that ultimately any link between color and behavior is bound to be culture-specific, because colors mean different things in different parts of the world. (And across time as well; don't forget that the pink/blue dichotomy was originally reversed.)


POST SCRIPT

Book Review of The Color Revolution
ReginaLee Blaszczyk, MIT Press 2012

Culture as Learned Probability System
2012, Network Address

Seeing Red
2013, Network Address

Cultural Evolution of Basic Color Terms
2013, Network Address

Wednesday, January 4, 2017

Beyond Biomimicry


The Pompidou in Paris, built in 1970's by  Richard Rogers, Renzo Piano and Gianfranco Franchini. It's not under construction, it's an inside-out building. It's probably easier to fix this way, but do we like the way that looks? (It's actually a nightmare to clean the place.)

Color-changing materials could be used to detect structural failure in energy-related equipment
phys.org, July 2016

"Researchers at MIT are making fluorescent polymer gels that change color when they're shaken, heated, exposed to acid, or otherwise disrupted. Given such a response, these novel materials could be effective sensors for detecting changes in structures, fluids, or the environment."

Buildings are not alive, so they don't heal themselves. It's hard for us to find out what's wrong with them, because most of their critical parts have been made invisible according to our cultural-architectural preferences.

But now, if there's structural damage in a place that's been doped with pressure-sensitive colorgel, we can see it.

Friday, July 10, 2015

The Color Revolution

ReginaLee Blaszczyk, MIT Press 2012

Book Review by Allen Barkkume

This book is part of the Smithsonian Institution’s Lemelson Center Studies in Invention and Innovation series

From the genesis of the modern color industry through the Byzantine conduits of culture, The Color Revolution presents color as a force to be reckoned with.

Wielding new powers, stunning new clientele, color undergoes a renaissance at the turn of the 20th century. It is unleashed from its crypt by new discoveries in chemistry, then standardized, codified, coordinated, and disseminated to the public in every consumable form – clothes, cars, appliances, architecture, and of course, the public education system. This book offers a good look at how technological change ripples throughout a culture. Also, if you’ve ever had a hunch that there are such things as “color forecasters” and global color committees, you’ll now be well-informed.

Blaszczyk pulls open the first curtain on the Queen’s Lilac, the first synthetic dye color (whereas today we would consider lilac a pale purple, at this time it referred to a mauve/magenta). The Queen of England draped herself in this emblem of modernity, and changed the color preference of an entire population.

Chemist William Henry Perkin discovers the dye by mistake while trying to synthesize quinine from coal tar. Many major discoveries were made at this time, by accident, while trying to make things out of the newfound abundance of coal waste. Benzene, for example, which can be seen as the emblem of all organic chemistry, was finally synthesized by someone working with coal tar. Aniline dye, synthesized from a waste product, showed what chemistry could do for the bottom line of the fashion industry.

With the new synthetic dyes came a new taste for color, a demand for vibrancy. And with this explosion came a need for understanding. The first treatise on “the principles of color harmony” was published in 1854, breaking the chromasphere  down into Hue, Value, Chroma. The standardization of color was prepared in Germany – the epicenter of the dye market in the late 1800’s – to facilitate communication among manufacturers, buyers, and designers. Soon, “color forecasting”, “color management”, and “color engineering” became legitimate branches of this industry.

The public understanding of color came about as a competition between two color theorists. Munsell and Prang pushed their own version of color organization on the United States’ public education system, a major market promising generous and sustained monetary returns to the winner. It was at this time that the 6-part color wheel originates. All the while, as these two entrepreneurial intellects fought for supremacy over the minds of America’s young photoreceptors, the field of color psychology was emerging. Statements like “There is no color outside ourselves” (Prang), and “Color is in us – not outside” (Munsell) attempted to bridge the divide between the practical and the scientific understanding of color by way of a deeper understanding of ourselves.

Furthermore, this systematic organization of color, along with the newly created Textile Color Color Association (TCCA) of the United States, allowed unprecedented coordination between the various players in the fashion industry. During WWI, France, the Western seat of all things fashion, stopped sending their “silk cards” to the US, seriously limiting design production. This spurred the creation of the TCCA, and a new Standard Color Card of America that would provide “chromatic archetypes” for the textile mills, garment makers, retailers – all parties. This monumental coordination effort did have some bumps in the road.

Blaszczyk describes the struggle for standardization. The TCCA put a general request via the New York Herald in 1919 asking for samples of battle ship gray. Manufacturers were asked for samples of basic colors as they appear in nature, in the form of jewels, minerals, flowers, fruits and metals. Upon receiving these, the TCCA found 50 examples of navy blue. An expert committee of textile industry veterans and major department store buyers contemplated and recommended these color archetypes to the association directors, and in the end, the Standard Color Card of America gave a “common language and a universal tool” to the industry. This new common language of the Standard would go on to symbolize American efficiency, as well as its fledgling independence from French fashion.

In a fascinating diversion, Blaszczyk describes the discovery of the science of camouflage. Nothing facilitates scientific discovery like the real-world laboratory of the battlefield. The advent of aerial technology and long-distance artillery changed the visual battlefield and demanded new strategies. Combined with the new discoveries of color harmony and discord in the fashion industry, war-minded individuals questioning whether this new knowledge could lead to an advantage on the field found their answer in the form of the camoufleur, a new kind of military strategist. “A camoufleur combined a painter’s command of optical illusion with a naturalist’s understanding of deceptive coloration.”

Just like many other wartime technologies, the principles and promise of camouflage followed soldiers home and found its way into the life of the general public. Theories of camouflage were used to transform the common home, and a new kind of color – “functional color” was born.

From the fashion and printing/advertising industries to other consumer products, like cars, color soon saturated the commercial landscape. This is especially relevant to that paragon of American consumer culture, the automobile. Once the automotive industry realized that using the right color-designs could substantially increase profits, they began spending more time and money researching color production and consumer color preferences. Every ten days car dealers sent sales reports to provide feedback and enhance the predictive power of “color futures”.

Nothing shows this tremendous research effort like the painting reproduced in Chapter 5 where an American Duco colorist “reproduces” the color of French silks – fresh from Paris! Although the US gained a good deal of independence from French fashion in the early 20th century, it was still important to follow the trends. So important, in fact, that the automobile industry sends an artist to Paris to paint a selection of draped silk fabrics, and then send that painting back to the US where the “color intel” could be used to inform color choices and combinations.

The incremental distancing of American color-culture from that of Europe is galvanized in Chapter 6. Blaszczyk titles the chapter “Entente” to emphasize the partnership between both sides of the Atlantic, but does more to show-off the uniquely American aspect of modern culture.

Although Blaszczyk points out the combining of American scientific management with European tradition of craftsmanship, quality and style, it is the cultural transformation taking place in America that makes the most impact. Social psychologist mastermind Edward Bernays secretly promoted the green color of Lucky Strikes packaging to be seen as more harmonious with women’s fashion. Rayon looks better on film, and so Hollywood almost unconsciously pushes the synthetic fabric’s popularity. America becomes a distinct and formidable cultural entity, creating its own expectations and demands.

Distinctly American things revolving around the American artworld, urban renewal, and ‘functional color’ (for industrial safety and communication) are the drivers of change. In these interim chapters, Blaszczyk reaches far and beyond “the industry” to the arts, architecture, and society at large – which, after all, is the source of any revolution.

In regards to manufacturing, it’s interesting to note that colorists were required for matching all the different parts of a telephone (rubber cords, metal dials, plastic bodies), for example, because all the different materials involved take their color differently.

Of all industries most integral to the color revolution, none were so pervasive, or as quintessentially American, as that of the automobile industry. Colorists, chemists, and automotive stylists advanced companies like DuPont to create new pigments, lacquers, and enamels. In the world of Fordist production, or Levittown houses, where every unit looks the same, you sell the color of the product, not the product itself.

But as regional tastes, lingering biases, and socio-economic differences all contributed to the weakening of sales (or the inevitable inability of color forecasters to keep-up with the complexity of “culture”). In concluding, I’ll quote Blaszczyk:

“The color expansion of the postwar years was evidence of the extravagances of a growth economy and the maturation of American consumer society. […] By the last quarter of the 20th century, more Americans than ever before had dishwashers, phones and cars, but they were available in fewer colors.

*An overarching lesson of this book is that as for the color world, it was figured out very early on, and continues to this day, that if there is an industry where women hold the most valued opinions and preferences, it is that of Big Color.

Monday, March 17, 2014

Color-Brained


Smeared Sky Sunset - Timestacks - Matt Molloy

An Anthropologist on Mars. Oliver Sacks. Vintage, 1996.
“The Case of the Colorblind Painter”

“Individuals may only “see” a color (or make a perceptual categorization) if there is an existing cultural category or name for it. But it is not clear whether such categorization may actually alter elementary color perception.” (footnote 9 on page 17)

Chromatophenes (colored rings or halos) can be induced by the magnetic stimulation of the brain (the V4)
-Semir Zeki, neurophysiologist, 1970s; found in Sacks p28

Some particular part of the brain may be discovered as the generator of color, “But color vision, in real life, is part and parcel of our total experience, is linked with our own categorizations and values, becomes for each of us a part of our lifeworld, of us. … It is at higher levels that integration occurs, that color fuses with memories, expectations, associations, and desires to make a world with resonance and meaning for each of us. (p29)

The power of expectation and mental set in the perception of color is clearly shown in those with partial red-green colorblindness. Such people may not, for example, be able to spot scarlet holly berries against the dark green foliage, or the delicate salmon-pink of dawn – until these tare pointed out to them. “Our poor impoverished cells,” says a dyschromatope of my acquaintance, “need the amplification of the intellect, knowledge, expectation, and attention in order to ‘see’ the colors that we are normally ‘blind’ to.” (footnote 20 on page 29)

Cultural Evolution of Basic Color Terms
JULY 10, 2012
Seeing Red
JUNE 3, 2013

Monday, June 3, 2013

Seeing Red

(append to Cultural Evolution of Basic Color Terms)

Why Isn't the Sky Blue?
Radiolab [listen]

tl;dr: Homer was 'colorblind', as were most humans circa 0 BCE, and the only color they could see was red. Listen to the broadcast, taste the rainbow.




The joys of a comments page (archived for personal entertainment)...

CRAYONS
Nicolas Collignon from copenhagen
Before the modern period, Japanese had just one word, Ao, for both blue and green...In 1917, the first crayons were imported into Japan, and they brought with them a way of dividing a seamless visual spread into neat, discrete chunks. There were different crayons for green (midori) and blue (ao), and children started to adopt these names. But the real change came during the Allied occupation of Japan after World War II, when new educational material started to circulate. In 1951, teaching guidelines for first grade teachers distinguished blue from green, and the word midori was shoehorned to fit this new purpose.'
Jul. 25 2012 05:46 PM

JAPAN
chilidee
Yes, we do refer to the green light as the "blue light", and when the trees are full of very healthy green leaves, we say the trees are very blue. We see green and we have a word for green, but for certain items, we use the word blue, even when they are green...
Jun. 10 2012 03:02 AM

KOREA
NaYa
There's a Korean word that describes both green and blue as well, but it's the opposite of what was mentioned in the podcast as they're both considered 'bluish' instead of green. The five traditional colors are Black, White, Red, Yellow and Blue, and there is no native word that's specific for 'green.'
Apr. 09 2013 07:11 PM

RUSSIA
Tani from Canada
It's also interesting to me that Russian has two words for blue, ??????? (goluboi) which is light blue and ????? (sinii) which is dark blue, but they don't think of them as the same color, which of course is how English speakers think tend to think of them...
Oct. 05 2012 12:09 AM

NORSE
Misti Wudtke from Ohio
...while reading Snorri Sturluson's Edda, was struck by the description of the rainbow bridge Bifrost (called Bilrost in other sources):
"You must have seen it, maybe it is what you call the rainbow. It has three colours and great strength and is built with art and skill to a greater extent than other constructions..."...the same term was used both for blue and black...
Sep. 06 2012 01:22 PM

GAELIC
Clark from Newcastle Australia
In English we have plenty of Black, White, Brown, Grey and Green surnames, but there aren't a lot of Blues around. This topic interests me since my surname is derived from the Gaelic word 'gorm' for blue. However, when I looked into it, 'gorm' can mean blue or green.
Sep. 06 2012 01:22 PM

HEBREW
to from Raleigh
what is lapis lazuli and indigo? Two highly prized "blue" things of the ancient world.
Oct. 04 2012 12:34 PM
[response]
ultros from Oakland, CA
There are two blue-ish words used in the Hebrew: sappir (5601) and tekeleth (8504). Sappir is used almost exclusively in reference to the actual mineral sapphire or lapiz lazuli. It's often used in lists containing other minerals like diamond, turquoise, or chalcedony. Tekeleth is used almost exclusively to refer to dyed fabric. Misha's link to wikipedia gives a good explanation about how this is a very specific dye made from shellfish. As far as I can tell, neither the sky nor the ocean is ever called sappir or tekeleth.
Jun. 23 2012 06:31 PM
[^tl;dr]
Arlo from PDX
To those of you citing the blue things in the Hebrew Bible. The question at issue is not whether blue things appear, but that an actual word like blue is used to represent ALL blue things!
Jun. 07 2012 04:07 PM

SURFERS (and neolithic outdoorsmen)
glassgirl from seattle
when people are in the sun a long time (like surfers) their corneas go "yellow" and lose the ability to see purple and blue hues...the problem of ancient scholarly manuscripts - the author is most likely an adult and after years of exposure have gotten a yellow tint in their corneas and thus a filter that blocks blues and purples.
Jul. 18 2012 01:18 AM

THE TAKEAWAY
Elan' from Los Angeles, Ca.
And after you notice what blue looks like, what that color really is, you can't go back.
May 28 2012 09:51 PM

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NOTES FROM DEUTSCHER
In response to the perplexing question of why the sky is called "black" in some cultures (p67-68): Perhaps qualities usually associated with black things such as "deep" voids or "empty" shadows are what make the bright blue sky "black" for these people.

Color Naming: The color of a thing in abstraction from the particular thing itself.
(p75)

Color-Making: The interest in color as an abstraction is likely to develop hand-in-hand with the artificial manipulation of colors, when color comes to be seen as detectable from a particular object. ... Blue is extrememly rare in nature and is very difficult to make...
(p92, referencing Gladstone)

POST SCRIPT
regarding the naming of colors/cultural evolution etc.:
"smells, unlike colors, do not have names of their own: they are always identified by what they are smells of."
-The Art Instinct, Denis Dutton, 2009, p211

NOTES
Guy Deutscher, Through the Language Glass: Why the World Looks Different in Other Languages, 2011
Linguistic relativity and the color naming debate, link
Gladstone, W.E. (1858). Studies on Homer and the Homeric age. London: Oxford University Press.
William H. Durham, Coevolution: Genes, Culture and Human Diversity, 1991, link

Tuesday, July 10, 2012

Cultural Evolution of Basic Color Terms

Time for some explanation.

This is perhaps the most important diagram I have ever seen regarding "Color Theory",
Durham’s example of genetic mediation in the cultural fitness of a set of memes (pp213-218).


The genotypes considered are those responsible for the pigment-based system of light absorption in the eye, and the neurophysiological processing of sensory input to the brain.

EXPERIMENT:
1969: anthropologists Brent Berlin and Paul Kay undertook an experiment to prove the semantic relativity of language across different cultures. They wanted to prove that each culture divides the spectral continuum arbitrarily. (But their data, re-examined, proves something much more impactful.)

Native speakers of 20 different languages were asked to
1. List the color terms in their language
2. Pick a ‘focal point’ (the most typical example acceptable) for each of those color terms out of a 329-color palette.
3. Outline the outer boundary (on the color palette) of acceptable colors for that term.

RESULTS:
The data shows a tight clustering around what we can now call the eleven universal colors.

“There appears to be a fixed sequence of evolutionary stages through which a language must pass as its basic color vocabulary increases.”  (Berlin and Kay, p14)

“Black, white, red, green, yellow, blue are the six primaries, once they are encoded, the other colors can be combined from the basics.” (Kay and McDaniel)

If a language encodes fewer than 11 basic colors, there are strict limitations, as follows. All languages have names for black and white (which are more like opposites; either dark/light or warm/cool), so we begin with every language having at least 2 color names. If the language has 3 color names, then red is always the third color...

2-black and white
3-red
4-green or yellow
5-green and yellow
6-blue
7-brown
8+purple, pink, orange, grey

DURHAM’S CONCLUSIONS:
-Basic color terms are a specific kind of meme with considerable cross-cultural regularity.
-Compared to other descriptions of color, known or imaginable, these appear to have especially high cultural fitness [we don’t change the names of colors].
-When new memes are added to the set, they enter into a specific and highly constrained fashion? system?

It is proposed then, that regularities in the linguistic decoding of color result from regularities in the neural coding of color in the brain, with the implication that this is a case of genetic mediation.

PARALLELS:
On the notion of inevitability and the sequence of cultural/technological evolution, Kevin Kelly states:
Each technological progression around the world follows a remarkably similar approximate order.
The direction of technological development is the same every time it happens.
Rock art always precedes sewing, and metalwork always follows claywork.

NEURO-PHYSIOLOGICAL EXPLANATIONS:
The Neural Coding of Color

The nervous system codes spectral radiation according to its wavelength in a way that creates a kind of biological categorization of the spectrum. (Durham, p218-219)

The absence of color-terms in any known culture for reddish-green or bluish yellow (as illustrated by Kay, 1978) is in parallel to the function of the lateral geniculate nucleus (LGN) of the brain, which uses a “spectrally opponent response process” via four nerve cells – two tuned to red/green, and 2 tuned to blue/yellow (DeValois and DeValois, 1966,1973).

The cross-cancelling of these cells leads to absence of fuzzy middle areas between the color pairs of red/green and blue/yellow. It also matches the sequence of the evolution of color terms (Berlin and Kay), which sees red-green-blue-yellow as primary colors from which others are differentiated.

(Note that although orange can be made of red-yellow, it is not present in the opposing sets of nerve cells; green is.

Regarding semantic correlation to neural coding, it appears that the favored variants which lead to the basic color terms of a culture (and thus have the most ‘fitness’) closely match the neural pattern. This is a case of Primary Value Selection, as defined by Durham as being opposite the Secondary Value Selection. Primary- is based on genetic programming, whereas Secondary- is built on top of the primary program, but differs in that it uses conscious decision-making.

NOTES:
William H. Durham, Coevolution: Genes, Culture and Human Diversity
Brent Berlin and Paul Kay, Basic Color Terms: Their Universality and Evolution. 1969, Berkeley
Paul Kay and Chad K. McDaniel, The Linguistic Significance and the Meanings of Basic Color Terms, Language 54, 1978
Kevin Kelly, What Technology Wants, 2010

IN THE NEWS:
Jan 2017, CBS News

In a study published in the academic journal eLife, researchers examined DNA methylation — fingerprints of DNA that can be inherited or altered by life experience and shape how our genes are expressed —among 573 Mexican and Puerto Rican children. DNA methylation reflects individual circumstances — for instance, PTSD stemming from traumatic experiences, air pollution from environmental conditions, after effects from maternal smoking, etc.

…a large fraction, one quarter, of the DNA fingerprints likely reflect biological signatures of environmental, social or cultural differences between the ethnic groups.

Different racial and ethnic groups tend to follow different diets, live in neighborhoods with varying levels of poverty and pollution, and are more or less likely to smoke. DNA methylation can reflect these subtle cultural and environmental differences.

Dr. Esteban Burchard, a physican-scientist and professor at UC San Francisco, supervised the study, which was 20 years in the making.


“It tells me there’s something biological to race. It tells me that we have a lot more work to do. Twenty-five percent of what we see is not due to biological differences, but things associated with the idea of race and ethnicity.”

POST SCRIPT
As with the evolution of Color, notes in music began with a separation of octaves (perhaps male, female voices, etc.) and proceeded to divisions of 4ths and 5ths (etc.)
  -Curt Sachs, The Rise of Music in the Ancient World, East and West, 1943

The Lipps–Meyer Law predicts an 'effect of finality' for a melodic interval that ends on a tone which, in terms of an idealized frequency ratio, can be represented as a power of two.

The Lipps–Meyer law, named for Theodor Lipps (1851–1914) and Max F. Meyer (1873–1967), hypothesizes that the closure of melodic intervals is determined by "whether or not the end tone of the interval can be represented by the number two or a power of two", in the frequency ratio between notes.
  -Meyer, M.F. (1929). "The Musician's Arithmetic", The University of Missouri Studies, January.


RadioLab - Colors
Season 10 Episode 13
Listen to this podcast discussing how the Ancient Greeks, Homer included, were 'colorblind', and how the sky isn't really blue.


BONUS