I'm having some difficulty collecting my thoughts so I don't know how useful this will be or whether I am really answering the right questions.
I think Quoth responded to something SixOClock wrote in the BPD forum. We had mentioned C-PTSD and Quoth mentioned that C-PTSD can cause a lack of empathy as well. I’ve been told I might have that because of some supposed “trauma” I’ve experienced, so it could be that as well? Or BPD, who knows.
PTSD itself has diminished empathy, C-PTSD that much more so. This is assuming we're talking about actual C-PTSD not just some codependent with an adjustment disorder who fancies another melodramatic label. It's not a 'nice' disorder as opposed to PDs which are typically deemed as 'nasty' disorders.
Terr's description of C-PTSD, which I've posted before, is the best description of the disorder.
The defenses and coping operations used in the [disorders resulting from complex traumatization in] childhood [include] massive denial, repression, dissociation, self-anesthesia, self-hypnosis, identification with the aggressor, and aggression turned towards the self, [and] ... profound character changes. ... Children who experience [complex] traumas often forget. They may forget whole segments of childhood—from birth to age 9 for instance ...” Where one sees the difference between these “forgetful” children and ordinary youngsters is in the multiply traumatized child’s relative indifference to pain, lack of empathy, failure to define or acknowledge feelings and absolute avoidance of psychological intimacy. Repeatedly brutalized, benumbed children employ massive denial.
All of which exist to distance the individual from overwhelming emotions and sensations of trauma.
For myself I will say that I have extreme difficulty accessing my core emotions. I often feel like a compulsive/paranoid shell tightly keeping an emotional hurricane in check. All emotions are suppressed until they boil over which is usually turned inwards in the form of depression. If I try to access my emotions when they don't want to be accessed the activity is both painful and draining, like drowning in despair and grief. There are some situations that induce that sensation too, particularly those where I have to show weakness to or be in the power of others. Affective empathy is one of the few responses that remain but I suspect it is often diminished by my puritanical and unyielding view point, often I don't act sympathetically due to paranoia that such behaviour will be received in a negative way. Everybody is different of course, trauma disorders like their personality counterparts are intensely specific to the individual.
It's difficult to get round the 'life was cruel to me, I see no reason it shouldn't be the same for you' style thinking. The sense of isolation and alienation doesn't help either. Ultimately I can usually be relied upon to react and assist people in genuine distress even when others will not due to personal risk, the proviso of course being what constitutes genuine distress. I am not really the kind of person you want to seek out if your boyfriend dumps you after you cheated on them or because you are upset that your parents would not buy you the sneakers you wanted. Morality plays a core part in my behaviours, which is partially why I find animals a lot easier than people. An animal is fundamentally incapable of evil and therefore cannot be malicious, the same is true for people with learning difficulties and children. Though it must be said that my pursuit of that which I deem to be right can be extremely ruthless and cruel.
shanzeek wrote:I possess empathy, but I don't think it has anything to do with doing the right thing, doing the right thing is in my case almost always a consious choice, a decision-making process rather than acting on some emotion I pick up.
I have to disagree here. Moral or ethical choices for me are more akin to faith. They are based on something I feel, reason is merely the means by which I explain them. That said I often find other people's ambiguity on the subject, which seems so clear and obvious to me, puzzling.
The first time they talked to me about some kind of PTSD I was 15 I think? I was in foster care and they did a psychological evaluation and an IQ test. I remember when my case manager told me about the results saying signs I had PTSD, and I told her, “doesn’t that require some traumatic event? What event am I supposedly traumatized by?” And all she said was, “You’ve had a lot of traumatic events in your life.”

this sounds like me. I recognise them as traumatic from a cognitive perspective in the sense that I see how they could be damaging. To me though, it's just '$#%^ that happened'.
shanzeek wrote:I read your topic about maladaptive daydreaming and Quoth was also mentioning it in another topic here (he said it's a defense mechanism trauma survivors often use), so there might be a connection between the two. I think Quoth can tell us more about it, I know very little about the whole thing.

I'm no expert.
I know it's a behaviour linked to psychological trauma, but it doesn't require the same kind of invasive trauma like ptsd to develop. I know it has a connection to people that have suffered long term bullying as well. Childhood neglect or loneliness could do it too I guess. It has a strong link to cptsd due to cptsd's use of dissociation as a primary defence mechanism.