Decomposing the roles of perseveration and expected value representation in models of the Iowa gambling task.

Although, the associations between these parameters and performance only approached significance, estimated values of these same parameters had basically no relationship with performance in the EV Decay ( r = −0.04 for w ) and PVL Decay models ( λ = 0.05, where the tendency to select options based on their expected values is conflated with the tendency to persevere.

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