Representation of letter and syllable position in Korean orthographic processing
Research suggests that readers of Korean Hangul are characterised by precise orthographic coding. In contrast to findings from many Indo-European languages, the recognition of Hangul words is not speeded by prior masked presentation of transposed-letter or transposed-syllable primes relative to substitution primes. The present studies asked whether evidence for precise orthographic coding is also observed in the same-different task – a task claimed to reflect pre-lexical orthographic representations. Experiments tested whether masked transposed-syllable (Experiment 1) or transposed-letter (Experiment 2) primes facilitate judgments about whether a target matches a reference stimulus. In contrast to previous results using lexical decision, robust transposition effects were observed in both cases compared to substitution primes. These findings add weight to the proposition that position invariance is a universal characteristic of orthographic representation, although results also raise questions about how the orthographic processing stream should be characterised.