Debate surrounds whether perceptual salience and differential attention are necessary to produce this effect. Distinctiveness also influences the salience of group identities. The assignment of incentive salience to stimuli is dysregulated in addiction. They are thus low on what Stokols called "perceptual salience". Voters' perceptions of fairness also have an important effect on salience. Abnormal assignment of salience to stimuli may be one mechanism of hallucinations. Novelty seeking has been associated with reduced activity in insular salience networks increased striatal connectivity. This conflictual concept has overwhelming political salience. In the case of fear or paranoia, dysfunction may lie in elevated aversive salience. Functional neuroimaging research suggests the insula is involved in two types of salience. The ability of these projections to drive incentive salience is dependent upon dopamine receptor D1. Scanpaths are useful for analyzing cognitive intent, interest, and salience. The salience of these differences ebbed. He cited previous work by other researchers that explains psychosis as aberrant salience regulation. Group status interacts with group size to affect the salience of social identities.