Semantic processing is the ultimate goal of language
communication. Chinese characters and Japanese kanji both contain semantic
clues in their semantic radicals, However, as Japanese is learned
phonologically instead of morphologically nowadays, these clues may be more
conducive to Chinese comprehension. It is therefore plausible that these
inherent language differences could contribute to differential neural
substrates but this has not been directly examined. To address this research
gap, the current meta-analysis conducted direct contrasts between foci
reported in published Chinese and Japanese fMRI studies to seek convergent
activation across studies. It was found that Chinese evoked increased right
hemispheric activation than Japanese, suggesting that semantic radicals might
be more beneficial to Chinese than Japanese comprehension. The involvement
of left supramarginal gyrus in spoken Japanese but not in spoken Chinese
suggested that Japanese was processed more like alphabetic languages even
though it is visually represented by characters. It might be further inferred
that orthographic processing was essential for Chinese comprehension
whereas phonological processing was more relevant for Japanese. The
findings deepen our understanding of how linguistic characteristics shape our
brains in processing semantics.