Other studies have also linked this G allele to alexithymic systems which is a difficulty in describing and identifying emotions, which may result in G allele appearing on a pathetic cold or hostile.

其他研究也将这种G等位基因与述情障碍系统联系起来。述情障碍是一种难以描述和识别情绪的系统，它可能会导致G型等位基因表现出可悲，冷漠或敌对的情绪。