Minxia Hu
College of Foreign Languages and Cultures, Sichuan University
Wenjiao Fan
College of Foreign Languages and Cultures, Sichuan University
Given the heavy cognitive load inherent in language interpreting, interpreters may develop cognitive advantages from managing frequent switching of linguistic codes and working modes. Based on a systematic review of executive functions of inhibiting, shifting and working memory (WM) updating by Nour et al. (2020) and meta-analysis of working memory by Wen and Dong (2019) and Mellinger and Hanson (2019), this research follows the PICOS framework and the PRISMA guideline to synthesize findings from 98 tasks of 29 original studies from International and Chinese databases with a cut-off date of 1st October, 2020. Substantial evidence for an interpreter advantage in shifting was found, but not for inhibition or updating. The meta-analysis showed 1) a moderate to high effect in shifting (g = 0.68, seven WCST effects; g = -0.32, eight switching cost effects); 2) no effect in inhibiting (g = 0.13, six Stroop effects); 3) mixed effects in WM updating. Subgroup analysis on WM updating revealed significant training effects from within-group comparisons (g = 0.58, five 2-back effects; g = 0.71, two L2 listening span effects), but insignificant difference from between-group comparisons (g = -0.03 , five 2-back effects; g = 0.18, five L2 listening span effects ). More reproducible behavioral research with scientific and consistent designs is needed for a clearer understanding of the relationship between interpreting experience and EFs.
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Copyright © 2021 Minxia Hu, Wenjiao Fan
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