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An Erp Study Of The Processing Of Common And Decimal Fractions: How Different They Are, Li Zhang, Qi Wang, Chongde Lin, Cody Ding, Xinlin Zhou
An Erp Study Of The Processing Of Common And Decimal Fractions: How Different They Are, Li Zhang, Qi Wang, Chongde Lin, Cody Ding, Xinlin Zhou
Education Sciences and Professional Programs Faculty Works
This study explored event-related potential (ERP) correlates of common fractions (1/5) and decimal fractions (0.2). Thirteen subjects performed a numerical magnitude matching task under two conditions. In the common fraction condition, a nonsymbolic fraction was asked to be judged whether its magnitude matched the magnitude of a common fraction; in the decimal fraction condition, a nonsymbolic fraction was asked to be matched with a decimal fraction. Behavioral results showed significant main effects of condition and numerical distance, but no significant interaction of condition and numerical distance. Electrophysiological data showed that when nonsymbolic fractions were compared to common fractions, they displayed …