The IGT is a computerized assessment that assists in the evaluation of decision-making mediated by the prefrontal cortex. The program tracks the examinee’s selection of cards from four decks, two of which cause overall gain and two of which cause overall loss. The IGT is ideal for assessing patients who exhibit poor decision-making skills in the presence of otherwise normal or unaffected intelligence because of head injury or insult or any other condition thought to impact the function of the prefrontal cortex.
Features and benefits
- Immediate results. The task is carried out in real time; the program can generate a Score Report and T-score and raw score profiles as soon as the examinee has finished the task.
- Customizable. Several optional settings can be customized by the examiner prior to administration, including number of trials (i.e., card selections), inter-trial interval, type of currency, and starting amount of money.
- Flexible. Two export formats are available, enabling flexibility with data management. In addition, the program’s import feature enables you to import data from previous versions of the IGT.
- The IGT produces a Total Net Score and net scores for each block of 20 cards/trials. In addition, you can examine the total number of cards selected from each deck and the total amount of money won. A trial-by-trial table displays deck choice, amount won, amount lost, total money, and time for each trial.
- Normative scores are produced automatically; you can compare the examinee’s scores to those of a demographically corrected (n = 932) sample or to those of a U.S. Census-matched (n = 264) sample.
The IGT has been used in studies examining decision-making capacity in a variety of populations, including individuals with focal brain lesions, substance addiction, chronic pain, aggression disorders, and Huntington’s disease.