The "recycling hypothesis" posits that the word recognition system is built upon minimal modifications to the neural architecture used in object recognition. In two masked priming lexical decision studies, we examined whether "mirror generalization," a phenomenon in object recognition, occurs in word recognition. In Study 1, we found that mirrored repetition and mirrored transposed letter primes elicited significant and equivalent priming effects for mirrored targets. In Study 2, we found that mirrored and non-mirrored repetition primes both significantly facilitated processing of mirrored targets, but the priming effect was much larger for non-mirrored primes. In both studies, we also found evidence of gender differences as females showed faster response times and a larger mirror priming effect compared to males. Taken together, we conclude that mirror generalization occurs in the early orthographic stage of word recognition, but not in the later stage of lexical access, and there is a gender difference when reading mirror words.
Keywords: Masked priming lexical decision task; Mirror generalization; Mirror words; Word recognition.
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