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Age-related Chinese word recognition across different AoA and parts of speech

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Abstract

The cognitive ability of older adults declines with age, while the language processing experience becomes more abundant. Word recognition is one of the most fundamental abilities in language processing, but how the interaction of cognitive aging and language experience affects word recognition in older adults is still a complex issue. This study focuses on the influence of two factors, age of acquisition (AoA) and parts of speech on Chinese word recognition in older adults. In Experiment 1, we employed a context-free lexical decisions task to compare the differences of word recognition between young and older adults at the conditions of different AoAs and parts of speech. In Experiment 2, participants were required to perform a sentence reading task in order to examine the above effects with contextual involvement, and their eye movements were tracked and analyzed. Combining the results of the two experiments, we found a greater AoA effect in older adults compared to young adults. This effect primarily manifested as a decline in processing efficiency for late-acquired words and was already evident in the early stage of word recognition. In addition, only the older adults exhibit differences in the processing of distinct word components, indicating a progressive pattern of increasing difficulty from nouns to verbs and subsequently to adjectives. The findings suggest that older adults experience a heightened exacerbation of word processing difficulties.

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Data availability

The data that support the findings of this article are openly available at https://doi.org/https://doi.org/10.5281/zenodo.8201626.

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Funding

This work was supported by the National Natural Science Foundation of China (32371112).

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Zining Wang: Investigation; Data curation; formal analysis; visualization; writing – original draft and editing. Lina Zhang: Investigation; data curation; formal analysis; methodology; writing – original draft. Bin Xuan: Conceptualization; data curation; methodology; supervision; validation; writing – original draft, review and editing; funding acquisition. All authors read and approved the final manuscript.

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Correspondence to Bin Xuan.

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All experimental procedures were approved by the institution ethics committee (AHNU-ET-2021027). All participants were at least 18 years old and have signed informed consent forms before the experiment began.

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Informed consent was obtained from all individual participants included in the study.

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Wang, Z., Zhang, L. & Xuan, B. Age-related Chinese word recognition across different AoA and parts of speech. Curr Psychol (2024). https://doi.org/10.1007/s12144-024-05794-z

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  • DOI: https://doi.org/10.1007/s12144-024-05794-z

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