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

摘要: Numerical information can be conveyed by either symbolic or nonsymbolic representation. Some numerals also identified as quantities defined the number of lines (e.g., I, II, III in Roman and , Japanese Kanji Chinese). Here we report that such multi-representation magnitude facilitate processing these under certain circumstances. In a comparison task judging 1 to 9 (except 5) Chinese Arabic presented at foveal (at center) parafoveal (3° left right location, multi-representational small-value showed advantage over single-representational large-value only condition, demonstrated lower error rates faster reaction times. Further event-related potential (ERP) analysis was not reflected traditional ERP components previous studies processing, N1 P2p. Instead, difference found much later N400 component between 300–550 msec parietal regions, suggesting those behavioral differences may due early visual identification, but subitizing accessing mental line when lacking attentional resources. These results suggest there could three stages represented separately N1, P2p components. addition, numerical simultaneously both systems, which will situations.