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A Dynamic Framework for Modelling Set-Shifting Performances

Department of Psychology and Cognitive Science, University of Trento, 38068 Rovereto, Italy
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Behav. Sci. 2019, 9(7), 79; https://doi.org/10.3390/bs9070079
Received: 14 May 2019 / Revised: 10 July 2019 / Accepted: 12 July 2019 / Published: 18 July 2019
Higher-order cognitive functions can be seen as a class of cognitive processes which are crucial in situations requiring a flexible adjustment of behaviour in response to changing demands of the environment. The cognitive assessment of these functions often relies on tasks which admit a dynamic, or longitudinal, component requiring participants to flexibly adapt their behaviour during the unfolding of the task. An intriguing feature of such experimental protocols is that they allow the performance of an individual to change as the task unfolds. In this work, we propose a Latent Markov Model approach to capture some dynamic aspects of observed response patterns of both healthy and substance dependent individuals in a set-shifting task. In particular, data from a Wisconsin Card Sorting Test were analysed in order to represent performance trends in terms of latent cognitive states dynamics. The results highlighted how a dynamic modelling approach can considerably improve the amount of information a researcher, or a clinician, can obtain from the analysis of a set-shifting task. View Full-Text
Keywords: Latent Markov Model; set-shifting; Wisconsin Card Sorting Test; Dynamical Systems; Psychological Assessment Latent Markov Model; set-shifting; Wisconsin Card Sorting Test; Dynamical Systems; Psychological Assessment
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D’Alessandro, M.; Lombardi, L. A Dynamic Framework for Modelling Set-Shifting Performances. Behav. Sci. 2019, 9, 79.

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