The researchers created two strains of transgenic rats, one that had an abundance of NR1 subunits in their hippocampi and one in which it was suppressed.

• 研究员制造了2类基因突变的老鼠，一种是在他们的海马状突起大脑侧面脑室壁上的隆起物有丰富的NR1分子，另外一种是没有NR1的。