SLC1A2 and schizophrenia: In the study of Zhang et al., the rs4354668 SNP in the SLC1A2 gene was significantly associated with schizophrenia, and there were better executive function performances in all subjects homozygous for the T allele compared with the G allele carriers [59].These findings are consistent with previous reports demonstrating that the rs4354668 G allele has a disadvantageous effect on cognitive functions such as working memory and executive functions [70].