Effects of dilemmas and aromas on performance of the Iowa Gambling Task.

Males outscore females on the original version of the Iowa Gambling Task (IGT). This may be due to differential regional prefrontal cortical activation by males and females during the task. PET imagery indicates increased activation in dorsolateral (DL) prefrontal cortex (PFC) in males and in medial orbital (ORB) PFC in females.

Contemplation of moral dilemmas eliminates sex differences on the Iowa gambling task.

Men outperform women on the Iowa Gambling Task (IGT; A. Bechara, H. Damasio, D.