This post makes a distinction between a character disorder clearly linked to trauma and Characteropathy also called secondary psychopathy. However, both show symptomatic imbalance in the left hemisphere.
The following is from David Hecht ‘s article “An inter-hemispheric imbalance in the psychopaths brain” https://www.sciencedirect.com/science/article/abs/pii/S019188691100119X:
“There are indications in the literature that pro-social behavior, as well as the feelings of empathy, guilt and fear are mediated predominantly by regions within the right hemisphere (RH), whereas impulsivity, stimulation-seeking, aggression and risk-taking are linked primarily with left hemisphere (LH) activity. From a neurobiological perspective, it seems that psychopathy may be associated with an altered and imbalanced inter-hemispheric dynamics; a relatively hyperfunctioning LH and/or a hypo-functioning RH. Furthermore, within the psychopathic population, the RH hypo-functioning is more characteristic of primary psychopathy with its affective and interpersonal deficits, while the LH hyperfunctioning is most typical of the secondary psychopathy which is marked by impulsivity and antisocial style.”
Therefore, imbalances should be looked for associations with risk taking, impulsivity, stimulation-seeking, and aggression. This doesn’t mean that traumatized persons are characterpaths, but that the healing pathways of character disorder by necessity must target these patterns.
Attention should be given to the age of the person when they were traumatized specific to their brain development. The indication here is that hyp0-functioning in the left hemisphere is defensive and compensating-rather than indicative to specific damage to the tight hemisphere development, though like any muscle not used it atrophies (on both frontal lobes.
The limbic system, with emphasis on the sympathetic nervous system is highly emotional and because it is the body, and not the spirit, can be associated with an addictive or locked in pattern associated with a negative feedback loop associated with hypo-activity in the left hemisphere. As such it does not necessarily fully engage with the higher functioning areas of the left hemisphere. And that good, because it means the separation, from the heart, is not so vast, and the trauma perhaps less deep.
For initial treatment in part I would suggest activation of the parasympathetic nervous system, grounding and staying awake and present in meditation is in concert with a quieting of the chatter and not so much the emotions, but the emotional numnut mind yields insight and awareness. This is because the hypo-functioning imbalance is in the medial or language areas and also posterior areas of the left hemisphere
In a safe but not totally safe {to activate the para-sympathetic system} environment, this allows the trauma to emerge naturally, but with perspective; processed with experience in the right way, in the right manner, by being. Meaning instead if fear there is courage.