Prediction is a central mechanism in the human language processing architecture. The psycholinguistic and neurolinguistic literature has seen a lively debate about what form prediction may take and what status it has for language processing in the human mind and brain. While predictions are a ubiquitous finding, the implications of these results for models of language processing differ. For instance, eyetracking data suggest that predictions may rely on sublexical orthographic information in natural reading, while electrophysiological data provide mixed evidence for form-based predictions during reading. Other research has revealed that humans rapidly adapt to text specifics and that their predictive capacity varies, broadly speaking, in accordance with inter- and intra-individual language proficiency, which cuts across the speaker groups (e.g. L1 vs. L2 speakers, skilled vs. untrained readers) traditionally used for experimental contrasts. There is therefore evidence that the kind and strength of linguistic predictions depend on (at least) three sources of variability in language processing: speaker, text genre and experimental method. The aim of this Research Topic is to develop a better understanding of prediction in light of the three sources of variability in language processing, by providing an overview of state-of-the art research on predictive language processing and by bringing together research from various disciplines. First, intra-and inter-individual differences and their influence on predictive processes remain underrepresented in experimental research on predictive processing. How do language users differ in their predictive abilities and strategies, and how are these differences shaped by e.g. biological, social and cultural factors? Second, while language users experience great stylistic diversity in their daily language exposure and use, the majority of language processing research still focuses on a very constrained register of well-controlled sentences composed in the standard language. How ...
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