Hello. I'm not entirely sure this is a topic worth bringing up, but given that my scientific knowledge is not what it should be, I was wondering if anyone could assist me with this. Can anyone tell me what is known about the development of emotion in human children (be it psychological theories, neurological studies, or whatever). Specifically, is there any known scientific basis for a situation whereby one particular emotion (or I suppose more accurately one particular "flavour" of emotion, since I doubt we can divide emotion neatly into types) is not experienced? That is, the child is psychologically "healthy" but simply does not experience a particular emotion until puberty or until his/her circumstances change dramatically. Is this considered possible? If so, what does it suggest about the way in which emotions are experienced or when the capacity for emotion develops? Are certain emotions dependent upon particular hormonal/biochemical mixtures that are perhaps absent in particular children until unusually late in their development? Any help with this would be most appreciated. Thank you. 
