Introversion-extraversion and figure-ground perception.
D005120:Extraversion, Psychological; D005260:Female; D006801:Humans; D007439:Introversion, Psychological; D008297:Male; D010555:Personality Inventory; D011336:Probability; D011582:Psychological Theory; D011930:Reaction Time; D012737:Sex Factors; D014796:Visual Perception