hnique known as colorimetry and consist of accurate scientific measurements based on the wavelengths of three primary colours.human eye does not function like a machine for spectral analysis, and the same colour sensation can be produced by different physical stimuli. Thus a mixture of red and green light of the proper intensities appears exactly the same as spectral yellow, although it does not contain light of the wavelengths corresponding to yellow. Any color sensation can be duplicated by mixing varying quantities of red, blue, and green. These colours, therefore, are known as the additive primary colours. If light of these primary colours is added together in equal intensities, the sensation of white light is produced. A number of pairs of pure spectral colours called complementary colours also exist; if mixed additively, these will produce the same sensation as white light. Among these pairs are certain yellows and blues, greens and blues, reds and greens, and greens and violets.
.2 Colour as a characteristic of an object
is the most important characteristic of an object. It makes the object brighter and gives it an emotional expression.is a complicated phenomenon based on many reasons. Multicolouring from the physical point of view is made by the interaction of light and an object.paths consisting of many coloured rays is reflected or absorbed by different objects. Our eyes can see only reflected rays.the physical characteristics of the colour we can name hue, lightness and saturation. Hue is the main characteristic of the colour which is expressed by the words «red», «green», «blue» and as a result it helps us to distinguish different colours. Hue depends on the length of the light wave reflecting or absorbing by an object. Except black, white and grey which are achromatic all the other colours are chromatic.is a location of the colour on the scale from black to white. It is described by the word «dark» or light. level of chromaticity is defined by the saturation.physical qualities explain why a man can divide all the colours into coloured and uncoloured.
.3 Psychological aspects of the focus colours
the psychological point of view the categories of natural phenomena include following processes:
) The choice of motivation. On the assumption of the motivations that can be perceived by the organs of senses, only few of them are suitable for the cognitive process (they are in the focus of attention);
) Identity and classification. This can be reached by the means of comparision of special motivations of useful information in a man s brains;
) Nominative. The most part of the cognitive categories were named after some indefinite categories.Rosch (once known as Eleanor Rosch Heider) is a professor of psychology at the University of California, Berkeley, specializing in cognitive psychology and primarily known for her work on categorization, in particular her prototype theory, which has profoundly influenced the field of cognitive psychology. Throughout her work Rosch has conducted extensive research focusing on topics including semantic categorization, mental representation of concepts and linguistics. Her research interests include cognition, concepts, causality, thinking, memory, and cross-cultural, Eastern, and relig...
