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The representation of inflection is controversial: theories of morphological processing range from those that treat all inflectional morphemes as independently represented in memory to those that deny independent representation for any inflectional morphemes. Whereas identity priming for stems and derivational affixes is regularly reported, priming of inflectional affixes is understudied and has produced no clear consensus. This paper reports results from a continuous auditory lexical decision task investigating priming of plural inflectional affixes in English, in plural prime-target pairs such as crimes → trees. Our results show statistically significant priming facilitation for plural primes relative to phonological (cleanse → trees) and singular (crime → trees) controls. This finding indicates that inflectional affixes, like lexical stems, exhibit identity priming effects. We discuss implications for morphological theory and point to questions for further work addressing which representation(s) produce the priming effect. [ABSTRACT FROM AUTHOR]

The present studies investigated the influence of the semantic and syntactic predictability of an inflectional morpheme on word recognition and morphological processing. In two eye-tracking experiments, we examined the effect of syntactic and semantic context on the processing of letter transpositions in inflected words. Participants experienced greater and earlier disruption from cross-morpheme letter transpositions when target verbs appeared in a context that syntactically predicted the presence of a past-tense suffix. Further, internal transpositions caused greater and earlier disruption even in monomorphemic verbs when syntactic context created an expectation of morphological complexity. No effect of semantic predictability was observed, potentially because the semantic manipulation was insufficiently strong. The results reveal that syntactic contexts typical of most English sentences can lead readers to make predictions about the morphological structure of upcoming words. [ABSTRACT FROM AUTHOR]