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Age-related changes in time discrimination: The involvement of inhibition, working memory and speed of processing

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Background: Researchers have devoted much effort in trying to understand how and why our subjective experience of time changes across the adult life-span. The cognitive apparatus that supports timing is integrally entwined with those supporting other cognitive processes including working memory, inhibition and speed of processing. Methods: One-hundred-eighty adults ranged from 19 to 87 years old participated in the study. A time discrimination task, with two standard intervals (short standard = 500 ms; long standard = 1500 ms) was used. Moreover, N-back and Stroop tasks were used to assess working memory, inhibition and speed of processing. Results: Data were analysed with a multilevel mixed model approach. Accounting for between-subject variability, we compared models in order to assess the better fit using chi-square likelihood-ratio test, Akaike information criterion and the Bayesian information criterion. Results showed a significant interaction between age, standard interval, comparison interval and speed of processing. Conclusion: Our study confirmed that younger participants were generally more accurate across conditions than older ones; we also showed that performance depended indeed on intervals, but also on speed of processing abilities across age.

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Correspondence to Giovanna Mioni.

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We wish to confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome. We confirm that the manuscript has been read and approved by all named authors and that there are no other persons who satisfied the criteria for authorship but are not listed.

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Mioni, G., Cardullo, S., Ciavarelli, A. et al. Age-related changes in time discrimination: The involvement of inhibition, working memory and speed of processing. Curr Psychol 40, 2462–2471 (2021). https://doi.org/10.1007/s12144-019-00170-8

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  • DOI: https://doi.org/10.1007/s12144-019-00170-8

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