Skip to main content
Figure 1 | Genome Medicine

Figure 1

From: Genomics and the classification of mental illness: focus on broader categories

Figure 1

Heritability and genetic relationships between psychiatric disorders. (a) Heritability estimates from twin studies (blue bars) contrasted with heritability estimates from molecular data on single nucleotide polymorphisms (SNPs; pink bars). (b) Genetic relatedness between disorders as estimated from molecular SNP data: the length of the dashed lines corresponds to the degree of genetic relatedness (shorter line = more closely related disorders) and the blue numbers next to the line are genetic correlations estimated from molecular SNP data. The pink circle represents the extent of the proposed broader category of severe mental illness that encompasses the more closely related disorders. ADHD, attention-deficit/hyperactivity disorder; ASD, autism spectrum disorder; BPD, bipolar disorder; MDD, major depressive disorder; SCH, schizophrenia; SMI, severe mental illness (broad category); SNP, single nucleotide polymorphism.

Back to article page