No, sorry. It's something I read about while researching insecure attachment styles of adults. They attribute it to neglectful or inconsistently caring parentin

No, sorry. It's something I read about while researching insecure attachment styles of adults. They attribute it to neglectful or inconsistently caring parenting. Research might be poor quality because it's social science but it's probably there somewhere if you look for it. Though this isn't convincing, on a common sense level, I imagine if you locked up an adult in solitary confinement every time he expressed some emotion like anger or sadness, you wouldn't be surprised to find that he developed some kind of lasting psychological problems.