Abstract
The role of executive functions in supporting the pragmatics of communication has been extensively examined in clinical populations, but is still under-explored in healthy aging. In this study we addressed the role of executive skills, including inhibition, working memory, and cognitive flexibility, in older adults’ communicative-pragmatic abilities. Pragmatics was extensively assessed by measuring the understanding of figurative language, narrative texts, humor, and implicatures. A hierarchical regression analysis using composite scores evidenced a global effect of executive functions on communicative-pragmatic abilities, beyond demographic and theory of mind aspects. More fine-grained analyses showed that working memory was the strongest predictor of all pragmatic tasks. Specifically, comprehending narratives and humor seemed to capitalize primarily upon working memory, whereas figurative language and implicatures relied on working memory and to some extent cognitive flexibility. Conversely, inhibition did not stand out as a robust predictor of pragmatics. We argue that working memory allows for the simultaneous consideration of multiple pieces of information needed for pragmatic inferencing, and that only once working memory has played its role other executive aspects, such as cognitive flexibility and inhibition, might come into play. Overall, this study highlights the diverse role of executive skills in pragmatics in aging, and more generally contributes to shed light on pragmatic competence in older adults.
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Data availability
The dataset analyzed in the current study is available in the Open Science Framework repository, https://osf.io/ang6d/?view_only=f065d98b42d5463790bc4f1fd7a87066
Code availability
The regressions were done by means of SPSS; the Relative Weight Analysis was done with RWA-WEB, which is a free and web-based tool for this kind of analysis.
Notes
The committee approach is based on the collaborative work of bilingual individuals; this approach is particularly indicated for the translation of colloquial or idiomatic language where the literal translation might fail in capturing the intended meaning and when the local contexts must be taken into account (Douglas and Craig 2007), as in the case of a test assessing verbal pragmatics. For the APACS, two bilingual individuals worked on the translation from Italian to Flemish.
Although the Flemish version of the APACS test is not formally validated yet, we can offer already some evidence with respect to its validity, based on the preliminary data from a normgroup of N = 90 (50 female and 40 male participants) with a mean age of 42.60 years. Focusing on the Comprehension section of the test, the mean values of the Flemish preliminary norm-group (see Table 2 in the main text) are in line with the normative data collected for the original Italian version (Narratives = 53.40, Figurative Language 1 = 14.77, Figurative Language 2 = 27.69, Humor = 6.51). Moreover, a factor analysis (maximum likelihood—varimax) on the preliminary sample revealed two factors, exactly like in the original Arcara and Bambini (2016) study. As in that study, one factor seems to reflect the capacity to interpret figurative meanings, considering that Narratives, Figurative Language 1 and 2 score high on this first factor, whereas the second factor strongly correlates with Humor.
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This research was supported in part by the MIUR PRIN project “The Interpretative Brain: Understanding and Promoting Pragmatic Abilities across Lifespan and in Mental Illness”, 201577HA9M.
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The project was ideated by WS and VB. Study design was performed by WS and LVL. Data collection was performed by LVL. Data analysis was done by LVL, KD, and WS. Data visualization was performed by KD. Data interpretation and manuscript writing were done by VB and WS: specifically, VB is mainly responsible for Introduction and Discussion and WS is mainly responsible for the Methods and Results sections.
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Bambini, V., Van Looy, L., Demiddele, K. et al. What is the contribution of executive functions to communicative-pragmatic skills? Insights from aging and different types of pragmatic inference. Cogn Process 22, 435–452 (2021). https://doi.org/10.1007/s10339-021-01021-w
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DOI: https://doi.org/10.1007/s10339-021-01021-w