The results of this study indicated that cognitive-emotional training had a positive and significant effect on the post-traumatic growth of patients with COVID-19. Cognitive-emotional interventions, such as the one used in this study, offer patients an opportunity to express their personal experiences, present models, examine cognitive schemas, and reconstruct core beliefs that are predictive of post-traumatic growth.
Shakiba et al. and Hamidian et al. found a positive and significant effect of cognitive-emotional intervention on post-traumatic growth among children with cancer and women with breast cancer (
17,
18). Additionally, Ramos et al. and Bae et al. (
23) observed that group psychological interventions could facilitate post-traumatic growth in patients (
16). Masoum Abadi et al. found that a group educational intervention improved post-traumatic growth, mental well-being, and adherence to treatment (
24). Overall, these studies, along with the current one, suggest that psychological interventions and psychotherapy can increase post-traumatic growth in patients with severe and traumatic diseases despite any differences in the studied populations and intervention methods. Furthermore, Knaevelsrud et al. suggested that internet-based cognitive-behavioral training may be particularly effective in stimulating and facilitating post-traumatic growth (
25).
The therapeutic components of the intervention used in this study included activating deep cognitive processing and encouraging conscious rumination, which may partially explain its effectiveness in facilitating post-traumatic growth. Rumination is often associated with negative and distressing thoughts. At the same time, emotional and cognitive interventions activate conscious rumination, which can increase awareness of the positive aspects of an experience and promote post-traumatic growth (
17). Emotional regulation training, which is a kind of cognitive-emotional therapy, involves exercises that help individuals increase their understanding of positive emotions. This can contribute to strengthening positive feelings and promoting growth (
26,
27). Coping styles are also important components of post-traumatic growth. Both emotion-oriented and problem-oriented coping styles have been found to have a positive relationship with post-trauma growth, while coping styles involving denial, suppression, and emotional inhibition are associated with negative mental health outcomes. The emotional cognitive training used in this study emphasized exposure to trauma, expressing emotions and deliberate rumination, and using problem-oriented approaches instead of denial, escape, intrusive rumination, and suppression of emotions. This mechanism may have contributed to the improvement and increase in the level of growth among patients with COVID-19.
The results of the current study also showed that the cognitive-emotional intervention significantly reduced post-traumatic stress in patients with COVID-19. This finding is supported by the clinical trial conducted by Fan et al., which found that patients who received narrative exposure intervention had a significant reduction in post-traumatic stress symptoms compared to the control group (
8). Additionally, Bloukian and Vatankhah found that mindfulness-based cognitive therapy, which involved improving cognitive processing, conscious attention, acceptance, and conscious behaviors, could be an effective treatment for reducing post-traumatic stress symptoms in these patients (
28). These studies emphasize the importance of education in reducing post-traumatic stress symptoms, which is consistent with the results of the present study.
Bottche et al. found that cognitive-behavioral intervention had a positive effect on reducing post-traumatic stress in older people (
29). Merati et al. also reported that cognitive-behavioral therapy was effective in reducing post-traumatic stress disorder in earthquake victims (
30). Leiva-Bianchi et al. reported a significant effect of cognitive-behavioral therapy on post-traumatic stress symptoms (
31). Shakiba et al. found that the cognitive-emotional intervention used in their study had a positive and significant effect on post-traumatic stress in mothers of children with cancer (
18). Although there were some differences in the study populations and types of interventions used, these studies are consistent with the present study in terms of the positive effect of educational interventions on reducing post-traumatic stress symptoms.
Kazemi Rezaei et al. found that group therapy, such as memory specificity training, had positive effects on reducing negative emotional dysregulation, attention bias, and inhibition deficits in individuals with post-traumatic stress disorder (
32). Similarly, Samimi and Hassani showed that emotional working memory training was effective in improving cognitive emotion regulation strategies in teenagers with post-traumatic stress disorder (
33). Although these studies differ in terms of the study population and the type of training, their results confirm the importance of cognitive-emotional regulation training in individuals with post-traumatic stress disorder, which is consistent with the results of the present study. Furthermore, Sadeghi et al. showed that online, telephone, chat, and voice message interventions can effectively reduce psychological problems, including stress, anxiety, and depression, in infertile individuals. It is also worth noting that online interventions may be a suitable and preferred method during the COVID-19 outbreak (
34).
The therapeutic aspect of the cognitive-emotional intervention used in the present study was to activate deep cognitive processing and encourage deliberate rumination, which may explain its effectiveness in reducing the severity of post-traumatic stress (
35). Furthermore, cognitive emotion regulation strategies need to be transformed into verbalization of emotions in the brain so that individuals can have control over their emotions. Continuity and repetition are also essential for individuals to verbalize their emotions (
33). Therefore, the 7 sessions of emotional cognitive training offered in the present study may have provided the subjects with a good opportunity to internalize emotion regulation strategies through practice, repetition, and feedback.
There are several limitations to the present study. Firstly, the effect of the intervention was limited to post-traumatic stress symptoms, and other psychological outcomes related to the disease, such as psychological distress and depression, were not examined. Secondly, the effect of early initiation of training during hospitalization was not investigated. Finally, the study did not include a long-term follow-up evaluation of the effect of the cognitive-emotional intervention.
4.1. Conclusions
The results of the present study suggested that emotional and cognitive training was a highly effective intervention for reducing post-traumatic stress and increasing post-traumatic growth in patients with COVID-19. The techniques and methods used in the intervention, such as emotional disclosure and release, conscious cognitive processing, and cognitive training, can help reduce the negative psychological consequences of facing this difficult disease and improve the quality of life of patients. Therefore, it is recommended that psychological interventions, including emotional cognitive training, should be integrated into the management of patients with COVID-19.