Figure.

Three-dimensional representation of the space among psychiatric disorders. Each disorder is represented in the color of the factor for which it has higher loadings. Although the factors are correlated (see Table 1 and the “Results” section), they are represented as orthogonal to facilitate visualization. 1 indicates alcohol abuse; 2, alcohol dependence; 3, drug abuse; 4, drug dependence; 5, nicotine dependence; 6, major depressive disorder; 7, bipolar disorder; 8, dysthymia; 9, panic disorder; 10, social anxiety disorder; 11, specific phobia; 12, generalized anxiety disorder; 13, pathological gambling; 14, avoidant personality disorder; 15, dependent personality disorder; 16, obsessive compulsive personality disorder; 17, paranoid personality disorder; 18, schizoid personality disorder; 19, histrionic personality disorder; 20, antisocial personality disorder.