A self-paced reading study of context effects in the processing of aspectual verbs in Mandarin

Research in the past few years has investigated the semantic complexity of expressions with aspectual verbs followed by entity-denoting complements such as finish the book that led to processing costs cross-linguistically. The Structured Individual Hypothesis (SIH) proposes that aspectual verbs lexically encode a function whose value (dimension) must be resolved. This ambiguity resolution is hypothesized to occur at the verb’s complement, where a specific dimension is selected based on context (Piñango & Deo, 2016). In light of the critical role of the context in SIH, recent research (Lai et al., 2023; Lai & Piñango, 2019) has investigated how the interpretations of sentences with aspectual verbs were affected by biased contexts in an offline sentence acceptability judgment study and an online eye-tracking study. However, results of the two studies showed that biased contexts disambiguated the interpretations of aspectual verb expressions offline while processing costs in biased contexts were not found to attenuate costs in real time. The reason why conflicting results were found offline versus online and the timecourse of context effects remain unclear, but in our view it may be due to pragmatic contexts, i.e., descriptions of the utterance context used to infer the salient reading of the utterance. We used grammatical contexts – two classes of adverbs – in a self-paced reading study to examine context effects for sentences with aspectual verbs in Mandarin. We found that biased grammatical contexts not only affected the interpretations in the offline task, but crucially facilitated processing in the online experiment as well. We conclude that biased grammatical contexts predetermine the interpretations of aspectual verb expressions immediately in real time.