In fact, we have recently found that, in both the PFC and anterior cingulate cortex, the expression of the mRNA for the NR2A subunit of the NMDA glutamate receptor was decreased to a level that was no longer experimentally detectable in 49-73% of the GABA neurons that normally expressed this transcript in subjects with schizophrenia [19,20]. Here, GRIN2A is linked to schizophrenia.