Describes how 48 subjects participated in experiments to
investigate the effect of visual cues in identifying odours. The
subjects were first instructed to describe the odour of six fruit
solutions, four of which were inappropriately coloured. Second, they
were presented with a series of fruit solutions which varied in odour
and colour intensity and were asked to rank them in order of odour
strength. For the control sets, the odour and colour strengths were
compatible; in the experimental sets the odour strength and colour
intensity were conflicting. The results of the first experiment indicate
that the identification of fruit odours proves significantly more
difficult when the colour of the solution is inappropriate (p
< 0.05) and in the second experiment more subjects rank the solutions
in the correct order when the colour intensity and odour strengths are
compatible than when they are conflicting. Visual cues are found to
influence odour judgements significantly and, when presented with
conflicting stimuli, the visual cues appear to override the olfactory
sense and distract the subjects from making the correct assessment.
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