COLOUR PERCEPTION AND RETENTION OF PRACTICE EFFECTS ON PERFORMANCE

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COLOUR PERCEPTION AND RETENTION OF PRACTICE EFFECTS ON PERFORMANCE

Journal Title: International Journal of Basic and Applied Physiology - Year 2014, Vol 3, Issue 1

Abstract

Background & objectives: Time response is supposed to be the best factor for the management of homeostasis which we call as reaction time; this parameter is widely used in selection process of many occupations like pilots, car drivers and in industrial situation to prevent accidents. When subjects are new to a reaction time task, their reaction times are less consistent than when they have had an adequate amount of practice, subsequent reaction times are slower, as if the subject is being more cautious. According to colour expert and strategist Kate Smith (2008), found that the red colour stimulates energy and can increase heartbeat, blood pressure, respiration, and pulse rate more than any other colour and red has the most obvious association as a learned stimulant, especially as a connection to stop signs and traffic lights. So, present study was carried out to compare red and green colour light perception and retention of practice effects on visual reaction time among young healthy males. Methods: 35 young healthy male volunteers of age 19 to 25 years were randomly selected for recording visual reaction time displaying red and green colours light, initially without practice and later with practice of three weeks on reaction time instrument, in a adequately illuminated, noise free room between 9am-10am, to avoid discrepancy in the result due to changes in the shades of colours, with an hour after light breakfast to prevent hypoglycaemia. Neuropsychological data were determined with the Folstein Mini-Mental State Examination for cognitive disability and Hamilton Rating Scale for Depression. Results: It was observed that young healthy males’ response faster to visual stimuli after practice, however red colour light perception was faster as compared to green colour light with or without practice. Statistical analysis was done by using paired student‘t’ test and was found to be statistically significant (P<0.05). Data were expressed as mean±SD. Interpretation & conclusion: Training on a complex task both shortened the reaction time and improved accuracy. In today’s fast-paced world of digital technology, every person works invariably in complex setups, require to react to a variety of situations or changes in the external environment promptly and correctly. Colour vision is of particular importance in drivers of air, sea and road transport vehicles, railway engine drivers, bus and truck drivers, pilots etc. however red colour perception is faster as compared to green colour with or without practice. This can be explained on the basis of relative number of cones activated in response to a particular colour of light that is Thomas Young and Von Helmholtz’s Trichromatic Theory of Colour Vision

Authors and Affiliations

Kamini Ramdas Ilamkar

Keywords

Colour perception Practice Visual reaction time Young-Helmholtz trichromatic theory of colour vision.

EP ID EP546955
DOI -
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