Veldre Aaron, Andrews Sally
a School of Psychology , University of Sydney , Sydney , NSW , Australia.
Q J Exp Psychol (Hove). 2016 Oct 28:1-12. doi: 10.1080/17470218.2016.1247894.
Recent studies using the boundary paradigm have shown that readers benefit from a parafoveal preview of a plausible continuation of the sentence. This plausibility preview effect occurs irrespective of the semantic or orthographic relatedness of the preview and target word, suggesting that it depends on the degree to which a preview word fits the preceding context. The present study tested this hypothesis by examining the impact of contextual constraint on processing a plausible word in the parafovea. Participants' eye movements were recorded as they read sentences in which a target word was either highly predictable or unpredictable. The boundary paradigm was used to compare predictable, unpredictable, and implausible previews. The results showed that target predictability significantly modulated the effects of identical and plausible previews. Identical previews yielded significantly more benefit than plausible previews for highly predictable targets, but for unpredictable targets a plausible preview was as beneficial as an identical preview. The results shed light on the role of contextual predictability in early lexical processing. Furthermore, these data support the view that readers activate a set of appropriate words from the preceding sentence context, prior to the presentation of the target word.
最近使用边界范式的研究表明，读者能从句子合理延续的副中央凹预视中受益。这种合理性预视效应的出现与预视词和目标词的语义或正字法相关性无关，这表明它取决于预视词与前文语境的匹配程度。本研究通过考察语境限制对副中央凹中合理单词加工的影响来验证这一假设。在参与者阅读包含高度可预测或不可预测目标词的句子时，记录他们的眼动情况。使用边界范式来比较可预测、不可预测和不合理的预视。结果表明，目标可预测性显著调节了相同和合理预视的效果。对于高度可预测的目标，相同预视比合理预视产生的益处显著更多，但对于不可预测的目标，合理预视与相同预视的益处相当。这些结果揭示了语境可预测性在早期词汇加工中的作用。此外，这些数据支持这样一种观点，即读者在目标词呈现之前就会根据前文语境激活一组合适的单词。
