Category Archives: news

Colour personality test

There has long been an interest in trying to predict aspects of personality based on colour preferences. The Lüscher test is perhaps the best known example. There are a number of on-line tests that purport to be based on Max Lüscher’s system, for example, http://www.colorquiz.com/. In this test you are asked to select eight coloured patches in order of preference. These are the patches:

luscher

So I just did the test on-line and these were some of the things the test said about me:

“Craves change and new things, always looking for new adventures and activities. Becomes restless and frustrated when he has to wait to long for things to develop. His impatience leads to irritability and a desire to move on to the next project.”

“Highly optimistic and outgoing personality. Loves to learn new and exciting things, and craves new interests. Looking for a well-rounded life full of success and new experiences. Does not allow himself to be overcome with negative thoughts or self-doubt. Takes life head on, with enthusiasm. “

Well, it’s interesting, because it does sound a little bit like me to be honest. Does anyone who knows me agree? But then, we should be aware of  the Forer effect (also called personal validation fallacy): the observation that individuals will give high accuracy ratings to descriptions of their personality that supposedly are tailored specifically for them, but are in fact vague and general enough to apply to a wide range of people. We all tend to do this with horoscopes in the daily newspapers. So, I tried the test again – this time using a random colour selection – and these were the corresponding statements:

“Is a little on the lazy side when it comes to putting forth a lot of effort. Needs to build roots and have a peaceful, loving partner.”

Relies on love and friendship to bring him happiness. He is in constant need for approval and this makes him willing to help others in exchange for love and understanding. He is open to new ideas as long as they are productive and interesting.

These certainly don’t sound so much like me. Perhaps there is something in it. Of course, we would need to do a proper scientific study to really get to the bottom of what is going on. Which brings me to the purpose of this post – today I came across a colour personality test that does seem to have had some statistical/scientific validation. The test is called the Dewey Color System (http://www.deweycolorsystem.com/). This test has been assessed with a scientific study conducted by Rense Lange and Jason Rentfrow, the latter being a Lecturer in Psychology at the University of Cambridge (UK). The work has not yet been published but a “pre-journal white paper report” can be downloaded – http://www.deweycolorsystem.com/credentials/proven.html. I will leave it to you to read the report and make your own conclusions.

Orange wedding

Tomorrow I’m flying to Houston to present at a meeting of the Society of Color and Appearance in Dentistry; http://www.scadent.org/. So it was a strange coincidence that I came across a news story today that there is a trend in Houston (of all places) for people getting married – possibly brides, though I wouldn’t be so sexist as to suggest that – to use orange as a key colour in their wedding decorations. Interesting to see that orange is still a fashionable and contemporary colour. I knew I was right using orange as a main theme for the appearance of this blog! For the full story visit http://www.examiner.com/x-11875-Houston-Bridal-Scene-Examiner~y2009m7d12-Orange-you-glad-your-wedding-colors-reflect-you

Rose-tinted lenses

In a previous post – http://colourware.wordpress.com/2009/07/04/colour-blindness-news/ – I expressed sceptisism about whether coloured contact lenses or spectacles can improve colour discrimination in colour-blind observers. Today I came across a related story about the use of coloured lenses to improve reading in some people suffering from migraines and/or learning difficulties. It seems to be news in Australia – http://www.theage.com.au/lifestyle/wellbeing/tinted-lenses-bring-words-into-living-colour-20090712-dhfe.html – but I have been aware of research that coloured transparencies can help with reading for many years now. Apparently certain people respond better with certain colours – but I wonder why?

Energy-aware colour palette

Flat-panel displays based on organic LEDs are likely to become commonplace soon, replacing LCD panels, because they are more energy efficient. However, another potential advantage is that OLEDs use more or less energy depending which colours (hues) are being displayed. This is in contrast with LEDs which use the same amount of energy no matter which hue is being displayed. Research by Johnson Chuang at Simon Fraser University in Canada suggests that the selection of an energy-aware colour palette could save battery life on mobile devices. For further details see http://www.newscientist.com/article/dn17419-limitedcolour-screens-could-boost-cellphone-battery-life.html

colour blindness news

When we say someone is colour blind its a misnomer, since most people who are colour blind can see colour; it’s just they have poorer colour discrimination compared with so-called normal observers. Colour-blind observers will confuse two colours, for example, that would normally be easilly discriminated between. Very often, but not always, it is reds and greens that are confused. Colour blindess affects about 1 in 10 of the male population but is very rarely found in females.

Colour blindness that is inherited genetically and is present from birth is normally considered to be incurable. However, there are contact lenses on the market that claim to improve colour vision for colour-blind people. A recent news story concerns a man in the UK who is testing out one of these products and sharing his experiences in the Daily Mail. For the full story see http://www.dailymail.co.uk/health/article-1194399/Like-men-I-colour-blind-special-contact-lenses-helped-clearly.html

The gentleman in question has always wanted to be qualified to fly an aeroplane. However, any claims that contact lenses can improve colour vision should be treated with caution; they may upset the delicate balance of a colour-vison test and enable someone to pass a colour-vision test but this doesn’t mean that they bestow normal colour vision on the wearer.

At the same time, a new colour vision test developed by John Barbur at City University (London) was commissioned by the UK’s Civil Aviation Authority (CAA) that could allow colour-blind people with only a mild deficiency to be distinguished from those with more serious colour-vision problems. This could open up the door to some colour-blind people being allowed to have occupations that they previously would have been ineligibe for. Further details can be found on the BBC web site: http://news.bbc.co.uk/1/hi/uk/8103302.stm

moths change colour again!

We all know the story of the peppered moth that changed its colour from white to black in certain areas of the UK in response to increased pollution. The change made it less obvious to predators against backgrounds of grime and soot.

moths

Well, apparently, 200 years later in post-industrial Britain it’s changing back to it original colour. For the full story go to http://www.telegraph.co.uk/earth/wildlife/5577724/Moth-turns-from-black-to-white-as-Britains-polluted-skies-change-colour.html

People are being urged to look out for moths, note their colour, and log them at a special web site – http://www.mothscount.org/site/

ps. Apparently moths are not the only thing changing colour – some people say that the white backs of the Apple iPhone 3GS are changing colour with frequent use. Of course, I couldn’t possibly comment

🙂