NDLI: Processing speed enhances model-based over model-free reinforcement learning in the presence of high working memory functioning

Content Provider	PubMed Central
Author	Schad, Daniel J. Jünger, Elisabeth Sebold, Miriam Maria, Garbusow Bernhardt, Nadine Javadi, Amir-homayoun Zimmermann, Ulrich S. Smolka, Michael N. Heinz, Andreas Rapp, Michael A. Huys, Quentin J. M.
Copyright Year	2014
Abstract	Theories of decision-making and its neural substrates have long assumed the existence of two distinct and competing valuation systems, variously described as goal-directed vs. habitual, or, more recently and based on statistical arguments, as model-free vs. model-based reinforcement-learning. Though both have been shown to control choices, the cognitive abilities associated with these systems are under ongoing investigation. Here we examine the link to cognitive abilities, and find that individual differences in processing speed covary with a shift from model-free to model-based choice control in the presence of above-average working memory function. This suggests shared cognitive and neural processes; provides a bridge between literatures on intelligence and valuation; and may guide the development of process models of different valuation components. Furthermore, it provides a rationale for individual differences in the tendency to deploy valuation systems, which may be important for understanding the manifold neuropsychiatric diseases associated with malfunctions of valuation.
Related Links	http://dx.doi.org/10.3389/fpsyg.2014.01450
Starting Page	1450
File Format	PDF
ISSN	16641078
e-ISSN	16641078
Journal	Frontiers in Psychology
Volume Number	5
Language	English
Publisher	Frontiers Media S.A.
Publisher Date	2014-12-17
Access Restriction	Open
Rights Holder	Frontiers Media S.A.
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Psychology

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