Grandiose narcissists are significantly less likely to use critical thinking when it comes to important problem solving or decision making. While narcissists perceive themselves to be above average intelligence and strong critical thinkers, they are unable to use reflective thinking skills effectively. The high levels of confidence they have in their intellectual abilities are often misplaced.
According to a new study published in the Journal of Abnormal Psychology, the brains of women with the eating disorder Bulimia Nervosa respond differently to images of sugary and high-fat foods following a stressful situation than those without the disorder. Brain scans reveal bulimic women have decreased blood flow to the precuneus, an area of the brain associated with self-criticism, when presented with images of food following a stressful math test. The findings provide support to current theories that binge eating may provide an alternative focus to negative self-reflections.