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Affiliated institutions: University of Rochester

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Description: Accurate word recognition is facilitated by context. Some relevant context, however, occurs after the word. Rational use of such “right context” would require listeners to have maintained uncertainty or subcategorical information about the word, thus allowing for consideration of possible alternatives when they encounter relevant right context. A classic study continues to be widely cited as evidence that subcategorical information maintenance is limited to highly ambiguous percepts and short time spans (Connine et al., 1991). More recent studies, however, using other phonological contrasts, and sometimes other paradigms, have return mixed results. We identify procedural and analytical issues that provide an explanation for existing results. We address these issues in two reanalyses of previously published results and two new experiments. In all four cases, we find consistent evidence against both limitations reported in Connine et al.’s seminal work: at least within the classic paradigms. Key to our approach is the introduction of an ideal observer framework to derive normative predictions for human word recognition expected if listeners maintain and integrate subcategorical information about preceding speech input optimally with subsequent context. We test these predictions in Bayesian generalized linear mixed-effect analyses, including at the level of individual participants.

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