Table 3.

The top-scoring functional networks of genes nominated by analysis of SZ-discordant twin pairs and BD-discordant twin pairs

	Associated network functions	Network score
Top SZ networks
1	Nervous system development and function, cellular development, reproductive system development and function	73
2	Cell signaling, nucleic acid metabolism, small-molecule biochemistry	39
3	Embryonic development, organ development, organ morphology	30
Top BD networks
1	Neurological disease, developmental disorder, genetic disorder	67
2	Psychological disorders, genetic disorder, nutritional disease	48
3	Gene expression, RNA post-transcriptional modification, organismal development	18

The network score is a numerical value used to rank networks according to their degree of relevance to the network eligible molecules in the gene list. A number of functional networks directly related to psychosis were highlighted by these analyses.