The Iowa Gambling Task is a neat measure of decision making. Antoine Bechara identified the key role of the orbital frontal cortex for optimal performance on this short (typically 5-10 minutes) test while at the University of Iowa. The PEBL Iowa test has been used in a few manuscripts recently including one published in Drug & Alcohol Dependence, 117, 204-210.
The video below includes the instructions, a sample trial, and the output.
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