## 3 Results and Discussion
### Therapeutic Intervention and Symptom Change during the Proposed Program
#### 3.1.3 Session Three: Sensory Reconstruction and Identifying Resources  
In the third session, the subject clearly revealed his negative self-concept, which was not integrated within himself. At the start of this session, a rapid decline in both the SDNN and RMSSD was observed, as shown in Figure 3. At this point, the subject self-reported his unacceptable experience. In the transcript, this was described as follows: \"Embarrassment is seven points...Injustice is ten points. It's really terrifying. It's unfair I had to go through this experience\". \"Just think about it for a moment...I wouldn't have gone this far...I'm so sorry for him....It's confusing. I'm sorry and I'm annoyed...However, it was not that I was 100% kind, and he did that kind of thing afterward [after recalling the traumatic event].\" \"The maximum points, ten points (of discomfort)...Does this make sense? [a sigh and a deep breath...hesitating to talk]\". Since he had self-reported his negative self-experience at the beginning of the session, he self-narrated his traumatic symptoms up to the middle of the session. He scored his traumatic events as ten points, the maximum points. Although he reported negative events, as in Session 2, the previous session, he deconstructed and reconstructed his traumatic events in talking with the psychotherapist, which resulted in a symptom change. This process is a typical top-down one. In the process of discussing the traumatic events, the story is reassembled, which helps the CPTSD victim to have a new point of view toward the traumatic events. Here, it is suggested that the increasing trend of both the SDNN and RMSSD from approximately minute 18 to minute 50, as shown in Figure 3, is related to these verbal reports. In this session, the stabilization technique, which involved exploring resources, was performed. First, the subject was to huge himself, identify an external resource (someone beside himself), and then experience acceptance by the external resource. Next, the stabilization technique based on the subject's preferred sense was performed, in a similar way to the second session. The subject rated his experience, which ranged from ten points to six points after the second stabilization and to three points after the third stabilization. 1.4 Session Four: Confirming One's Own Change, Exploring Self-Management Plan, and Projecting One's Own Future (Going into the World)  
In the last session, the subject confirmed his own changes and explored self-management methods. These results appear to be related to the abrupt positive emotion changes at approximately minute 5 and minute 42, as shown in Figure 4. The HRV at both moments exhibited increasing tendencies, except for the SDNN at 5 min. The subject described his positive emotion accordingly: [What kind of person do you think you are?] \"I think I am growing a bit...I could say it is unnecessary to be upset. Let's talk just about this situation\". The stabilization technique in the last session utilized a timeline based on the subject's preferred sense. As the intervention program progressed, the subject integrated his separate sense of self. He practiced maintaining these changes in the future. He talked about a problem centered on himself as the victim at approximately minute 45 (Figure 4). This re-experience is a phenomenon that can happen to those who have experienced CPTSD. Therefore, through a future projection technique, the subject's coping methods were checked for a future situation. After the projection process, breathing training and imagery training work were conducted. During these sessions, the subject experienced positive sensations of the five senses through light stream mediation. Through a body scanning technique, he verbally reported a \"warm and cozy sensation\". The HRV, as shown in Figure 4, increased as well. During the future projection process, the subject assessed himself accordingly: \"Compared to five years ago, I am doing better... First of all, I'm getting older and getting to know the world more. I grew up\".