A fascinating study has found that sniffing female tears significantly reduced male aggression and decreased activity in aggression-related brain networks. It’s suggested that the effect, which is caused by chemical signals in tears and is also seen in rodents, serves a protective function.
The journal isn’t such a high prestige journal. It’s actually a new one with open access, which doesn’t attract best studies. Combined with the fact it’s a psychological study, which is hard to replicate, and somehow the authors employed MRI, which doesn’t really prove anything by itself, I think the authors knew it wouldn’t be perceived as the best quality article.
What about this particular paper is difficult to replicate?