Research on nonnative auditory word recognition makes use of a lexical decision task with phonological priming to explore the role of phonological form in nonnative lexical access. In a medium-lag lexical decision task with phonological priming, nonnative speakers treat minimal pairs of words differentiated by a difficult phonological contrast as a repetition of the same word. While native speakers show facilitation in medium-lag priming only for identical word pairs, nonnative speakers also show facilitation for minimal pairs. In short-lag phonological priming, when the prime and the target have phonologically overlapping onsets, nonnative speakers show facilitation, while native speakers show inhibition. This review discusses two possible reasons for facilitation in nonnative phonological priming: reduced sensitivity to nonnative phonological contrasts, and reduced lexical competition of nonnative words with underdifferentiated, or fuzzy phonolexical representations. Nonnative words may be processed sublexically, which leads to sublexical facilitation instead of the inhibition resulting from lexical competition.

Japanese–English bilinguals completed a masked phonological priming study with Japanese Katakana primes and English targets. Event related potential (ERP) data were collected in addition to lexical decision responses. A cross-script phonological priming effect was observed in both measures, and the effect did not interact with frequency. In the ERP data, the phonological priming effect was evident before the frequency effect. These data, along with analyses of response latency distributions, provide evidence that the cross-script phonological priming effects were the consequence of the activation of sublexical phonological representations in a store shared by both Japanese and English. This activation fed back to sublexical and lexical orthographic representations, influencing lexical decision latencies. The implications for the Bilingual Interactive Activation (BIA+) model of word recognition are discussed.