scholarly journals Correction: Data from 617 Healthy Participants Performing the Iowa Gambling Task: A “Many Labs” Collaboration

2015 ◽  
Vol 3 ◽  
Keyword(s):  
Iowa Gambling Task ◽  
Gambling Task ◽  
Healthy Participants

scholarly journals Directed exploration in the Iowa Gambling Task: model-free and model-based analyses in a large dataset of young and old healthy participants

2018 ◽  
Author(s):  
Romain Ligneul
Keyword(s):  
Computational Models ◽  
Iowa Gambling Task ◽  
Large Population ◽  
Gambling Task ◽  
Choice Data ◽  
Parameter Recovery ◽  
Model Free ◽  
Multiple Metrics ◽  
User Friendly ◽  
Healthy Participants

AbstractThe Iowa Gambling Task (IGT) is one of the most common paradigms used to assess decision-making and executive functioning in neurological and psychiatric disorders. Several reinforcement-learning (RL) models were recently proposed to refine the qualitative and quantitative inferences that can be made about these processes based on IGT data. Yet, these models do not account for the complex exploratory patterns which characterize participants’ behavior in the task. Using a dataset of more than 500 subjects, we demonstrate the existence of such patterns and we describe a new computational architecture (Explore-Exploit) disentangling exploitation, random exploration and directed exploration in this large population of participants. The EE architecture provided a better fit to the choice data on multiple metrics. Parameter recovery and simulation analyses confirmed the superiority of the EE scheme over alternative schemes. Furthermore, using the EE model, we were able to replicate the reduction in directed exploration across lifespan, as previously reported in other paradigms. Finally, we provide a user-friendly toolbox enabling researchers to easily fit computational models on the IGT data, hence promoting reanalysis of the numerous datasets acquired in various populations of patients.

Performance and awareness in the Iowa Gambling Task

2014 ◽  
Vol 37 (1) ◽  
pp. 41-42 ◽  
Author(s):  
Helen Steingroever ◽  
Eric-Jan Wagenmakers
Keyword(s):  
Iowa Gambling Task ◽  
Gambling Task ◽  
Methods Of Analysis ◽  
Payoff Structure ◽  
Improved Methods ◽  
Healthy Participants

AbstractNewell & Shanks (N&S) conclude that healthy participants learn to differentiate between the good and bad decks of the Iowa Gambling Task, and that healthy participants even have conscious knowledge about the task's payoff structure. Improved methods of analysis and new behavioral findings suggest that this conclusion is premature.

scholarly journals Data from 617 Healthy Participants Performing the Iowa Gambling Task: A “Many Labs” Collaboration

2015 ◽  
Vol 3 ◽  
Author(s):  
Helen Steingroever ◽  
Daniel J. Fridberg ◽  
Annette Horstmann ◽  
Kimberly L. Kjome ◽  
Veena Kumari ◽  
...  
Keyword(s):  
Iowa Gambling Task ◽  
Gambling Task ◽  
Healthy Participants

Performance of healthy participants on the Iowa Gambling Task.

2013 ◽  
Vol 25 (1) ◽  
pp. 180-193 ◽  
Author(s):  
Helen Steingroever ◽  
Ruud Wetzels ◽  
Annette Horstmann ◽  
Jane Neumann ◽  
Eric-Jan Wagenmakers
Keyword(s):  
Iowa Gambling Task ◽  
Gambling Task ◽  
Healthy Participants

scholarly journals Balloon analogue risk task to assess decision-making in acquired brain injury

2016 ◽  
Vol 9 (1) ◽  
pp. 30-39 ◽  
Author(s):  
Marina Areny Balagueró ◽  
Mercè Jodar Vicente
Keyword(s):  
Decision Making ◽  
Brain Injury ◽  
Iowa Gambling Task ◽  
Acquired Brain Injury ◽  
Control Group ◽  
Clinical Group ◽  
Gambling Task ◽  
Balloon Analogue Risk Task ◽  
Verbal Comprehension ◽  
Healthy Participants

Introduction: Although impairment in decision-making is a frequent consequence of frontal lobe injury, few instruments evaluate decision-making in patients with acquired brain injury (ABI). Most are difficult to use and require a well-preserved ability of complex verbal comprehension and executive functions. We propose the Balloon Analogue Risk Task (BART) as an alternative instrument to evaluate decision-making in ABI. Material and Methods: Balloon Analogue Risk Task (BART) and Iowa Gambling Task (IGT) were administered to a clinical group of 30 patients with ABI and to a control group of 30 healthy participants; comparative study to assess possible differences in the results obtained; analysis to determine a possible correlation between the two tests between groups. Results: The results showed that BART is a sensitive instrument to detect differences in performance between a control group and a group of patients with ABI, p < .001, 95 % CI =537.21-1575.46,  but do not correlate with  IGT, p = .524, rab.c = ‒.134. Conclusions: Although IGT and BART were both designed to assess decision-making, the results obtained in our study show that the scores obtained by patients with ABI on both tests do not correlate. This clearly proves that IGT and BART measure different aspects of decision-making.

scholarly journals The Prominent Deck B Phenomenon in Schizophrenia: An Empirical Study on Iowa Gambling Task

2021 ◽  
Vol 12 ◽  
Author(s):  
Mei Xu ◽  
We-Kang Lee ◽  
Chih-Hung Ko ◽  
Yao-Chu Chiu ◽  
Ching-Hung Lin
Keyword(s):  
Decision Making ◽  
Empirical Study ◽  
Iowa Gambling Task ◽  
Clinical Symptoms ◽  
Wisconsin Card Sorting Test ◽  
Control Group ◽  
Gambling Task ◽  
Card Sorting ◽  
Behavioral Measures ◽  
Healthy Participants

Background: The Iowa Gambling Task (IGT) was established to evaluate emotion-based decision-making ability under uncertain circumstances in clinical populations, including schizophrenia (Sz). However, there remains a lack of stable behavioral measures regarding discrimination for decision-making performance in IGT between schizophrenic cases and healthy participants. None of the Sz-IGT studies has specifically verified the prominent deck B (PDB) phenomenon gradually revealed in other populations. Here, we provided a global review and empirical study to verify these Sz-IGT issues.Methods: Seeking reliable and valid behavioral measures, we reviewed 38 studies using IGT to investigate decision-making behavior in Sz groups. The IGT, the Wisconsin Card Sorting Test (WCST), and clinical symptoms evaluations were administered to 61 schizophrenia or schizoaffective cases diagnosed by psychiatrists and 62 demographically matched healthy participants.Results: There were no valid behavioral measures in IGT that could significantly identify the decision-making dysfunction of Sz. However, Sz cases, on average, made more choices from disadvantageous deck B relative to other decks, particularly in the later learning process (block 3–5). Compared to the control group, the Sz group was more impaired on the WCST. The high-gain frequency decks B and D showed significant correlations with WCST but no correlation between clinical symptoms and IGT/WCST.Conclusions: Gain–loss frequency (GLF) has a dominant and stable impact on the decision-making process in both Sz and control groups. PDB phenomenon is essentially challenging to be observed on the ground of the expected value (EV) viewpoint approach on the IGT in both populations. Consequently, caution should be exercised when launching the IGT to assess the decision-making ability of Sz under a clinical scenario.

Bayes factors for reinforcement-learning models of the Iowa gambling task.

Decision ◽  
2016 ◽  
Vol 3 (2) ◽  
pp. 115-131 ◽  
Author(s):  
Helen Steingroever ◽  
Ruud Wetzels ◽  
Eric-Jan Wagenmakers
Keyword(s):  
Reinforcement Learning ◽  
Iowa Gambling Task ◽  
Bayes Factors ◽  
Gambling Task ◽  
Learning Models ◽  
Reinforcement Learning Models
Sign in / Sign up

Export Citation Format

Share Document