A Comparison of Reinforcement Learning Models for the Iowa Gambling Task Using Parameter Space Partitioning

Autor/inn/en	Steingroever, Helen; Wetzels, Ruud; Wagenmakers, Eric-Jan
Titel	A Comparison of Reinforcement Learning Models for the Iowa Gambling Task Using Parameter Space Partitioning
Quelle	In: Journal of Problem Solving, 5 (2013) 2, S.1-32, Artikel 2 (32 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1932-6246
DOI	10.7771/1932-6246.1150
Schlagwörter	Decision Making; Reinforcement; Comparative Analysis; Models; Learning + Suchen Sie Ihr Suchwort? Decision-making; Entscheidungsfindung; Positive Verstärkung; Analogiemodell; Lernen
Abstract	The Iowa gambling task (IGT) is one of the most popular tasks used to study decision-making deficits in clinical populations. In order to decompose performance on the IGT in its constituent psychological processes, several cognitive models have been proposed (e.g., the Expectancy Valence (EV) and Prospect Valence Learning (PVL) models). Here we present a comparison of three models--the EV and PVL models, and a combination of these models (EV-PU)--based on the method of parameter space partitioning. This method allows us to assess the choice patterns predicted by the models across their entire parameter space. Our results show that the EV model is unable to account for a frequency-of-losses effect, whereas the PVL and EV-PU models are unable to account for a pronounced preference for the bad decks with many switches. All three models underrepresent pronounced choice patterns that are frequently seen in experiments. Overall, our results suggest that the search of an appropriate IGT model has not yet come to an end. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01