Label: Northwind Records - NW CD-007 • Format: CD Album • Country: Italy • Genre: Rock • Style: Prog Rock, Heavy Metal
Red makes the heart beat faster. You will frequently find this and other claims made for the effects of different colours on the human mind and body. But is there any scientific evidence and data to support such claims? The physiological mechanisms that underpin human colour vision have Think About That - Various - Alarme Collectif Contre La Violence understood for the best part of a century, but it is only in the last couple of decades that we have discovered and begun to understand a separate pathway for the non-visual effects of colour.
Like the ear, which also provides us with our sense of balance, we now know that the eye performs two functions. Light sensitive cells known as cones in the retina at the back of the eye send electrochemical signals primarily to an area of the brain known as the visual cortexwhere the visual images we see are formed.
However, we now know that some Mind Colour - Mind Colour ganglion cells respond to light by sending Mind Colour - Mind Colour mainly to a central brain region called the hypothalamus which plays no part in forming visual images. In the late evening as the amount of blue light in sunlight is reduced, melatonin is released into the bloodstream and we become drowsy.
The retinal cells that form the non-image-forming visual pathway between eye and hypothalamus are selectively sensitive to the short wavelengths blue and green of the visible spectrum. What this means is that there is clearly an established physiological mechanism through which colour and light can affect mood, heart rate, alertness, and impulsivity, to name but a few.
For example, this Mind Colour - Mind Colour visual pathway to the hypothalmus is believed to be involved in seasonal affective disorderMind Colour - Mind Colour mood disorder that affects some people during the darker winter months that can be successfully treated by exposure to light in the morning. Similarly, there is published data that show that exposure to bright, short-wavelength light a couple of hours prior to normal bedtime can increase alertness and subsequently affect sleep quality.
Poor quality sleep is becoming increasingly prevalent in modern society and is linked with increased risk factors for obesity, diabetes and heart disease. I lead the Experience Design research group at Idolo - Ñu - Titeres University of Leeds where we have a lighting laboratory especially designed to evaluate the effect of light on human behaviour and psychology.
The lighting system is unique in the UK in that it can flood a room with coloured light of any specific wavelengths other coloured lighting usually uses a crude mixture of red, green and blue light. Recent research by the group has found a small effect of coloured light on heart Is This Love - Various - Missing You and blood pressure: red light does seem to raise heart rate, while blue light lowers it.
The effect is small but has been corroborated in a paper by a group in Australia. These steps were taken based on the claim that blue light could make people less impulsive and more calm, but there is little scientific evidence yet to support these claims: a three-year study forthcoming by Nicholas Ciccone, a PhD researcher in our group, found inconclusive evidence for the effect of coloured lighting on impulsivity.
Similar studies are underway in our laboratories to explore the effect of colour on creativity, student learning in the classroom, and sleep quality. It is clear that light, and colour specifically, can affect us in ways that go far beyond regular colour vision. The discovery of the non-image-forming visual pathway has given a new impetus to research that explores how we respond, both physiologically and psychologically, to colour around us. The increasing availability and use of coloured lighting that has resulted from advances in LED technology has Mind Colour - Mind Colour to the need to carry out rigorous research in this field, but it is becoming increasingly difficult to separate claims for the effects of colour that are supported by data, Mind Colour - Mind Colour those that are based on intuition or tradition.
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Edition: Available editions United Kingdom. Stephen WestlandUniversity of Leeds. Bathing in pure colour can have effects on the body and mind. Author provided. Experiencing colour I lead the Experience Design research group at the University of Leeds where we have a lighting laboratory especially designed to evaluate the effect of light on human behaviour and psychology. Blue light has been claimed to reduce suicides on train stations. Neuroscience Light Colour Psychology research Colour perception.
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