Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.

Numerical information can be conveyed by either symbolic or nonsymbolic representation. Some symbolic numerals can also be identified as nonsymbolic quantities defined by the number of lines (e.g., I, II, III in Roman and -, =, ≡ in Japanese Kanji and Chinese). Here we report that such multi-represe...

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Autores principales:	Chao Liu, Honghong Tang, Yue-Jia Luo, Xiaoqin Mai
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cc61a2b9c1504dbd8a88965b20f6a1dd
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spelling	oai:doaj.org-article:cc61a2b9c1504dbd8a88965b20f6a1dd2021-11-18T06:55:11ZMulti-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.1932-620310.1371/journal.pone.0019373https://doaj.org/article/cc61a2b9c1504dbd8a88965b20f6a1dd2011-04-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21541303/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Numerical information can be conveyed by either symbolic or nonsymbolic representation. Some symbolic numerals can also be identified as nonsymbolic quantities defined by the number of lines (e.g., I, II, III in Roman and -, =, ≡ in Japanese Kanji and Chinese). Here we report that such multi-representation of magnitude can facilitate the processing of these numerals under certain circumstances. In a magnitude comparison task judging 1 to 9 (except 5) Chinese and Arabic numerals presented at the foveal (at the center) or parafoveal (3° left or right of the center) location, multi-representational small-value Chinese numerals showed a processing advantage over single-representational Arabic numerals and large-value Chinese numerals only in the parafoveal condition, demonstrated by lower error rates and faster reaction times. Further event-related potential (ERP) analysis showed that such a processing advantage was not reflected by traditional ERP components identified in previous studies of number processing, such as N1 or P2p. Instead, the difference was found much later in a N400 component between 300-550 msec over parietal regions, suggesting that those behavioral differences may not be due to early processing of visual identification, but later processing of subitizing or accessing mental number line when lacking attentional resources. These results suggest that there could be three stages of number processing represented separately by the N1, P2p and N400 ERP components. In addition, numerical information can be represented simultaneously by both symbolic and nonsymbolic systems, which will facilitate number processing in certain situations.Chao LiuHonghong TangYue-Jia LuoXiaoqin MaiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 4, p e19373 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chao Liu Honghong Tang Yue-Jia Luo Xiaoqin Mai Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.
description	Numerical information can be conveyed by either symbolic or nonsymbolic representation. Some symbolic numerals can also be identified as nonsymbolic quantities defined by the number of lines (e.g., I, II, III in Roman and -, =, ≡ in Japanese Kanji and Chinese). Here we report that such multi-representation of magnitude can facilitate the processing of these numerals under certain circumstances. In a magnitude comparison task judging 1 to 9 (except 5) Chinese and Arabic numerals presented at the foveal (at the center) or parafoveal (3° left or right of the center) location, multi-representational small-value Chinese numerals showed a processing advantage over single-representational Arabic numerals and large-value Chinese numerals only in the parafoveal condition, demonstrated by lower error rates and faster reaction times. Further event-related potential (ERP) analysis showed that such a processing advantage was not reflected by traditional ERP components identified in previous studies of number processing, such as N1 or P2p. Instead, the difference was found much later in a N400 component between 300-550 msec over parietal regions, suggesting that those behavioral differences may not be due to early processing of visual identification, but later processing of subitizing or accessing mental number line when lacking attentional resources. These results suggest that there could be three stages of number processing represented separately by the N1, P2p and N400 ERP components. In addition, numerical information can be represented simultaneously by both symbolic and nonsymbolic systems, which will facilitate number processing in certain situations.
format	article
author	Chao Liu Honghong Tang Yue-Jia Luo Xiaoqin Mai
author_facet	Chao Liu Honghong Tang Yue-Jia Luo Xiaoqin Mai
author_sort	Chao Liu
title	Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.
title_short	Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.
title_full	Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.
title_fullStr	Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.
title_full_unstemmed	Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.
title_sort	multi-representation of symbolic and nonsymbolic numerical magnitude in chinese number processing.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/cc61a2b9c1504dbd8a88965b20f6a1dd
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Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.

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