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2016 ; 7
(ä): 505
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Spatial Representation of Ordinal Information
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Zhang M
; Gao X
; Li B
; Yu S
; Gong T
; Jiang T
; Hu Q
; Chen Y
Front Psychol
2016[]; 7
(ä): 505
PMID27092100
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Right hand responds faster than left hand when shown larger numbers and
vice-versa when shown smaller numbers (the SNARC effect). Accumulating evidence
suggests that the SNARC effect may not be exclusive for numbers and can be
extended to other ordinal sequences (e.g., months or letters in the alphabet) as
well. In this study, we tested the SNARC effect with a non-numerically ordered
sequence: the Chinese notations for the color spectrum (Red, Orange, Yellow,
Green, Blue, Indigo, and Violet). Chinese color word sequence reserves relatively
weak ordinal information, because each element color in the sequence normally
appears in non-sequential contexts, making it ideal to test the spatial
organization of sequential information that was stored in the long-term memory.
This study found a reliable SNARC-like effect for Chinese color words (deciding
whether the presented color word was before or after the reference color word
"green"), suggesting that, without access to any quantitative information or
exposure to any previous training, ordinal representation can still activate a
sense of space. The results support that weak ordinal information without
quantitative magnitude encoded in the long-term memory can activate spatial
representation in a comparison task.
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