Previous studies showed that non-synesthetic Japanese individuals systematically associate certain shapes with particular colors (i.e., circle-red, triangle-yellow, and square-blue). Those color-shape associations could be explained by semantic sensory correspondence between color and shape dimensions. In the present study, we examined whether neuro-typical Chinese individuals establish some color-shape associations, specifically, we compared color-shape associations from two different age groups with primary school children and adults to examine the age effect on color-shape associations. At last, we compared Chinese and Japanese individuals' color-shape associations. Results showed that Chinese people established certain color-shape associations, and there was little difference between the two age groups. Moreover, Chinese color-shape associations shared a similar pattern with Japanese. Those results suggested that color-shape associations might emerge at a young age and could be immune to cultural background.
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