Development and usefulness of a virtual reality-based training program for promoting subjective well-being: A preliminary study

DOI: https://doi.org/10.21203/rs.2.22410/v1

Abstract

Background

Enhancing subjective well-being is an effective way to improve mental health and virtual reality is useful as an intervention tool for cultivating well-being. This preliminary study aimed to probe the usefulness of a virtual reality-based interactive feedback program as an intervention tool for promoting subjective well-being.

Methods

In the experiment, 36 males participated in this program, consisting of three tasks constructed based on the theories of positive psychology: ‘Experience-based problem recognition task’, ‘Future self-based success story expression task’, and ‘Strength expression task’. Participants rated visual analog scores associated with each of the tasks' contents. The concurrent validity of task scores was evaluated by correlations with scores of the psychological scales, such as the Mental Health Continuum-Short Form, Rosenberg’s Self-Esteem Scale, Dispositional Hope Scale, and Life Orientation Test Revised.

Results

The total task score was positively correlated with the scores of Mental Health Continuum-Short Form emotional well-being ( r = 0.492, p < 0.001) and psychological well-being ( r = 0.501, p < 0.001), Rosenberg’s Self-Esteem Scale ( r = 0.435, p < 0.001), Dispositional Hope Scale agency dimension ( r = 0.601, p < 0.001) and pathways dimension ( r = 0.451, p < 0.001), and Life Orientation Test Revised ( r = 0.378, p < 0.05), but not with the MHC-SF social well-being scores. After controlling the effects of the other task scores, the task scores had linear relationships with certain psychological assessments.

Conclusion

The results showed that the total task score was significantly correlated with indicators of well-being, self-esteem, hope, and optimism. The task scores obtained from the individual tasks were closely related to the indicators, depending on the nature of the task. These findings suggest that the program contents are well associated with certain aspects of subjective well-being and thus may be available for training that improves subjective well-being through interactive feedback.

Introduction

Mental health is defined as “…a state of well-being in which the individual realizes his or her own abilities, can cope with the normal state of life, can work productively and fruitfully, and is able to make a contribution to his or her community” by the World Health Organization [1], suggesting that mental health is the existence of well-being. Although well-being is a complicated concept [2], two conceptual approaches are suggested: eudaimonic and hedonic. An eudaimonic approach suggests one’s true inner self as the concept of psychological well-being, which is defined by the degree of which a person is fully functioning and focusing on personal growth [2, 3], whereas a hedonic approach focuses on pleasure attainment and pain avoidance and is best encapsulated by subjective well-being [2]. As several studies have employed subjective well-being as a major outcome variable of mental health [4–6], enhancing subjective well-being is an effective way to improve mental health.

To enhance well-being, positive psychology suggests focusing on positive emotions, character traits, and enabling institutions [7]. This perspective emphasizes paying attention to strengths, improving the positives, and creating meaningful normal life as much as attending to weaknesses, addressing the negatives, and treating pathology [8]. Positive psychotherapy systematically amplifies positive individual resources such as character strengths, meaning, and intrinsically motivated accomplishments [9], and is effective in treating psychiatric disorders and improving subjective well-being [10, 11]. For example, multiple sessions on topics associated with strengths can make people optimistic by identifying and devising their strength profiles [12], and subjective well-being can be enhanced through visualizing best possible selves, exploring wishes, and processing positive life experiences [13, 14]. Key factors in enhancing subjective well-being include genetically determined factors, environmental factors, and intentional cognitive, motivational, and behavioral activities [15]. The last factor is proposed to be the most susceptible to change due to its focus on individual psychological processes. In the process of enhancing subjective well-being, it is posited that many psychological factors including self-esteem, hope, and optimism act interactively with subjective well-being [16–19].

A training program to improve mental health should deliver interventions with demonstrated efficacy, accessibility, and sustainability [20]. However, individual or group interventions offered at schools or work places are not always accessible (e.g., rural communities or small businesses) or sustainable (e.g., cost concerns). To overcome such limitations of conventional interventions, virtual reality (VR) technology to immerse users in a virtual environment that reflects the needs of daily life has been suggested [21–24]. VR has a great potential to measure whether interventions can be transferred to everyday life [25], and can provide scientists the ability to monitor an individual's real-time behaviors when interacting with virtual agents [26]. Furthermore, the use of VR can reduce human resources and costs, and thus has an advantage in sustainability [27]. To this date, several studies have reported positive psychology-based online interventions with promising results [20, 28, 29], although little evidence has been found of positive psychology-based VR interventions. Taken together, VR may have a potential to be effectively utilized as positive intervention for improving subjective well-being.

Considering both the importance of improving subjective well-being in mental health and the usefulness of VR as an intervention tool, the development of an appropriate VR-based program for cultivating well-being should be emphasized. The purpose of this preliminary study was to address the usefulness of a VR-based interactive feedback program for promoting subjective well-being. It was hypothesized that the behavior data collected in this program would demonstrate significant relationships with psychological assessments for subjective well-being and predict certain psychological characteristics.

Methods

Participants

Participants were 36 male volunteers in their 20 s (age range, 20–27 years; mean age, 23.7 ± 1.9; mean education years, 14.9 ± 1.9), recruited through advertisements in their communities. They were interviewed by a psychiatrist using the Mini-International Neuropsychiatric Interview [30] to screen the current use of psychotropic medications and any history of substance use disorders, neurological disorders, and major psychiatric disorders. This study was approved by the local Institutional Review Board, and participants provided informed consent upon explanation of the purpose and process of the study.

VR-based training

All participants experienced the VR-based training program, “Enhancing Subjective Well-being” (Fig. 1), once with the help of the built-in voice guidance. The program was run on the system including the Oculus Rift head-mounted display and touch controller (Oculus VR, LLC, USA), and consisted of three VR tasks with spoken avatars: ‘Experience-based problem recognition task,’ ‘Future self-based success story expression task,’ and ‘Strength expression task.’ In all tasks, participants were advised to consider and talk in detail their experiences, wishes, and thoughts. Participants’ states of mind during the program were monitored with task scores for questions rated on a visual analog scale (VAS) of horizontal line with the left ('not at all': 0 point) and right ('very much': 100 point) ends. Participants performed the tasks while sitting in a chair in a quiet room. An assistant provided only help with the operation of VR equipment.

Experience-based problem recognition task The goal of this task was to strengthen subjective well-being by exploring problems that participants experienced. The virtual instrument began with each participant standing in the ‘future experience room’ with a table with four books, each titled ‘Family relationships,’ ‘Interpersonal relationships,’ ‘Academics and Career,’ and ‘Leisure/Habits/Health.’ The participant was given voice guidance that overviewing his/her problems could be helpful in overcoming the problems. The guidance asked the participant to choose one of the books based on his/her current life experiences. An avatar introduced as an expert then entered the room and asked the participant to express his/her difficulties and efforts on resolving the difficulties. The participant was monitored using three questions, “How great is your difficulty in the selected domain?”, “How likely are these problems to be resolved?”, and “How much effort have you made to resolve the problem.” The VAS scores were recorded and referred to as the anti-difficulty score, resolvability score, and actual effort score, respectively. The first one was calculated by subtracting the raw score from 100 to make the direction of positivity the same as the other scores.

Future self-based success story expression task This task was developed to improve subjective well-being by visualizing a positive outlook on one’s future. Each participant was virtually positioned in a room that was warm and comfortable. There were five books titled ‘Example experience,’ ‘Family relationships,’ ‘Interpersonal relationships,’ ‘Academics and Career,’ and ‘Leisure/Habits/Health,’ all of which represented domains of wishes. Voice guidance explained that the participant would be asked to think and talk about wishes in the selected domain in the ‘miracle room.’ To encourage involvement and prevent confusion, the participant visited the ‘example experience room’, in which an avatar introduced as a winner of ‘Idol of Korea’ presented an example of tasks performed in the miracle room. When the participant chose a book, he/she entered the miracle room that contained a platform and microphone and was surrounded by images associated with the domain selected. The participant was introduced as his/her desired future self, and told in public what he/she had done in specific aspects such as efforts, goals, motivations, and paths of achievement to become his/her desired future self. Then, the participant rated the VAS score for a question: “How likely is this miracle to be realized in real life?” This was referred to as the likelihood-of-realization score.

Strength expression task The goal of this task was to increase subjective well-being by exploring personal strengths. We anticipated participants to be able to improve subjective well-being by articulating experiences in which they demonstrated their strengths. The scene began with each participant sitting in a radio studio. Voice guidance led the participant to an interview about his/her strengths as a Proud Citizenship awardee. There was a monitor in the virtual studio, which presented three categories and three elements for each category (Self-control: emotional control, preservation, and positive emotion; Self-motivation: internal motivation, autonomy, and competence; and Interpersonal relationships: Empathy, relatedness, and expressive capacity). Explanations were provided when a pointer was placed on the box describing each strength. An avatar host asked the participant to select one element from each of the three categories. In response to the questions, the participant verbalized his/her experience with each of the selected strengths and recommended activities for developing the strengths. The strength utilization score was measured by the question: “To what extent are you taking advantage of these strengths?”

Psychological assessments

Participants completed the following five self-report measures after performing the tasks. The first was the Mental Health Continuum-Short Form (MHC-SF) [31, 32], which measures positive mental health using 14 items (three for emotional well-being, five for social well-being, and six for psychological well-being) and a six-point Likert scale. The second was the Rosenberg’s Self-Esteem Scale (RSES) [33], comprised of 10 questions with a four-point Likert scale measuring self-esteem. The third was the Dispositional Hope Scale (DHS) [34], in which four items for the agency dimension (the individual’s orientation towards their goals), four for the pathways dimension (the individual’s perceived ability to identify workable routes to goal attainment), and four for distractors are used with a four-point Likert scale. The fourth was the Life Orientation Test Revised (LOT-R) [35], which measures dispositional optimism using 10 items and a five-point Likert scale. The last was the Simulator Sickness Questionnaire (SSQ) [36], 16-item questionnaire to examine the occurrence and severity of cybersickness when immersed in a virtual environment.

Statistical analysis

All task scores were summed for integration and the summed score was referred to as the total task score. The concurrent validity of task scores was evaluated by calculating Pearson correlations with psychological scale scores. For exploring which task scores predicted specific psychological assessments, step-wise multiple linear regression analysis was used. Each psychological scale score was used as a dependent variable, and the task score that showed significant correlation with each psychological scale score was used as an independent variable. Statistical significance was accepted at alpha level of 0.05. All data were analyzed using Statistical Package for Social Science 25.0 (SPSS Version 25.0; IBM Corporation, Armonk, NY, USA).

Results

Relationships between the task scores and psychological scale scores

Descriptive statistics of all scores obtained in the study are shown in Table 1. The total task score showed significant positive correlations with the scores of MHC-SF emotional well-being (r = 0.492, p < 0.001), MHC-SF psychological well-being (r = 0.501, p < 0.001), RSES (r = 0.435, p < 0.001), DHS agency dimension (r = 0.601, p < 0.001), DHS pathways dimension (r = 0.451, p < 0.001), and LOT-R (r = 0.378, p < 0.05), but not with the MHC-SF social well-being scores. Correlations between the task scores and psychological scale scores are presented in Table 2. The scatter plots of the total task score and psychological assessments are depicted in Fig. 2.

Results from step-wise multiple linear regression analyses

After controlling the effects of the other task scores, the task scores showing linear relationships with certain psychological assessments are presented in Table 3. The anti-difficulty score predicted only the MHC-SF emotional well-being score (p = 0.019). The resolvability score predicted the RSES (p = 0.028) and DHS agency and pathways dimension scores (p = 0.041 and p = 0.006, respectively). The actual effort score predicted the MHC-SF social and psychological well-being scores (p = 0.01 and p = 0.015, respectively). The likelihood-of-realization score predicted the MHC-SF emotional and psychological well-being scores (p = 0.023 and p = 0.047, respectively) and LOT-R score (p = 0.005). The strength utilization score predicted only the DHS agency dimension score (p = 0.005).

Discussion

The current study aimed to address the usefulness of our VR-based program for promoting subjective well-being. For acceptability, it is important that there are only manageable adverse effects when using the system. In this study, all participants completed the program without giving up. Given that the weighted mean SSQ score of the projection type of the head-mounted display used in the current study was 29.9 [37], our score of 24.4 suggests that the program causes an acceptable level of adverse effects of cybersickness.

The total task score calculated after completing the program showed a moderate correlation with most of the scale scores for psychological factors affecting subjective well-being, suggesting that the total task score may have good concurrent validity for assessing well-being, self-esteem, hope, and optimism. Unlike other measures, the MHC-SF social well-being score was not associated with the total task score, presumably because the contents of our program focused on the inner self concerning well-being. This result also reflects the fact that the elements of well-being are related to each other but are clearly distinct from each other [38].

The anti-difficulty score showed a linear relationship only with the MHC-SF emotional well-being score. Since participants selected the most difficult area of their current lives, such as family relationships, interpersonal relationships, academics and career, and leisure/habits/health, during the experience-based problem recognition task, the VAS score for experienced difficulty reflected the intensity of current stress. As the anti-difficulty score was the inverse of the intensity of stress experienced by participants, larger scores mean less stressful experience. Emotional well-being is the primary reflection of pleasant emotions and happiness [39]. Several studies have reported that perceived stress in various aspects of the environment had negative correlations with subjective well-being [40, 41]. Taken together, the result that the anti-difficulty score had a specific association with emotional well-being suggests that the current level of stress has a decisive effect on emotional well-being, including happiness.

The resolvability score had a linear relationship with both agency and pathways dimensions of the DHS. The contents of the experience-based problem recognition task focused on the will and action plan, and the resolvability score was a measure of the degree to which participants expected to be able to resolve the difficulties experienced. Accordingly, the higher the score, the more likely participants think that they will be able to overcome life’s challenges. The direct relationship between the score and hope is consistent with the previous findings that hope is clearly related to the expectation that positive outcomes will occur through one's own plans (pathways) and motivations (agency) [42]. Despite the similarity between hope and optimism, however, the resolvability score showed no linear relationship with the LOT-R score. In fact, optimism is primarily concerned with the expectation that positive outcomes will occur regardless of one's actions unlike hope [35, 43]. Some studies comparing the effects of hope and optimism reported that while both predicted life satisfaction, a positive effect on academic performance was only related to hope, not optimism [44, 45]. Our results indicate the importance of hope over optimism in terms of the willingness to overcome life's challenges.

The actual effort score predicted the MHC-SF social and psychological well-being scores. This score was about efforts to overcome difficulties, and thus higher scores indicate more of the effort. Such efforts are associated with stress, and much of the stress people experience is related to social factors [46]. The close relationship between the degree of actual effort and social well-being is understandable in that most topics presented in the experience-based problem recognition task belonged to the social realm. The model of social well-being has focused on the individuals’ evaluations of their public and social lives [38, 47]. Meanwhile, since psychological well-being mainly reflects the point in life at which a person realizes his/her potential and tries to resolve his/her problems [3], the close relationship between the degree of actual effort and psychological well-being seems to be inevitable.

The likelihood-of-realization score predicted the MHC-SF emotional and psychological well-being scores and LOT-R score. The future self-based success story expression task was to visualize a positive outlook on one’s future. Because the score was about the participant's future positive appearance, higher scores may reflect more optimistic attitude toward his/her future goals. The task contents were based on the concept of “best possible self,” a positive psychology intervention [14]. Disclosive writing about possible selves has been found to improve emotional adjustment through learning about oneself, restructuring one’s priorities, and gaining better insight into one’s motives [48–51]. In addition, emotional well-being and optimism can be increased through a program asking a person to visualize a life consistent with his/her ideal self [52]. Therefore, the likelihood-of-realization score seems to be linked to subjective well-being and optimism through the concept of “best possible self.”

The strength utilization score showed a linear relationship only with the DHS agency dimension score. The strength expression task aimed to help participants to explore and identify their character strengths. We expected the contents of this task would be associated with the process of strength identification that is important for strengthening subjective well-being. However, the resultant score showed association with agency dimension rather than pathways dimension of hope because the question did not ask how much participants identified their strengths, but asked how much they were taking advantage of the strengths. Higher scores indicate that participants evaluate their utilization of the strengths more positively. Therefore, our finding suggests that hope may be important to exploit strengths. Previous studies have reported that strength knowledge identifying and devising strengths has a positive correlation with hope [53, 54], and hope mediates between strength use and strength knowledge [55].

The interpretation of our results should be considered with caution. First, we limited participants to young men because the purpose was to only evaluate the usefulness of the program. A more intensive applicability study should be conducted with a more diverse sample including a broad range of age and female. Second, this experiment was only a one-time experience of our program. To be used for training purposes, a systematic repeating schedule is required. Third, the program relies only on subjective evaluation. Objective evaluation systems, including the use of biosignals, need to be added for further development.

Conclusion

Our results provide preliminary evidence that our program may be useful to improve subjective well-being. Cybersickness during the program was tolerable. The task scores from the experience-based problem recognition task showed a valid relationship with well-being and self-esteem, those from the future self-based success story expression task with well-being and optimism, and those from the strength expression task with agency dimension of hope. These results indicate that the program contents are associated with certain aspects of subjective well-being and thus may be available for training that improves it through interactive feedback. We believe that the use of our program will be an important starting point for the development of more efficient VR programs for improving subjective well-being.

Declarations

Ethics approval and consent to participate

Ethical approval for the study was obtained from the Institutional Review Board of Yonsei University Gangnam Severance Hospital. All participants provided written informed consent.

Consent for publication

Not applicable

Availability of data and materials

Data of this study are available upon request to interested researchers. Please submit requests to the corresponding author.

Competing interests

The authors declare that they have no potential competing interests.

Funding

This research was supported by the Brain Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2015M3C7A1065053).

Authors’ contributions

Y-BS and M-KK designed the project under the supervision of J-JK. Y-BS and J(oohan)K conducted the literature review; Y-BS, EK, and J(oohan)K designed the study under the supervision of J-JK. YHJ, HE and M-KK conducted the data collection. J(unhyung)K conducted the analyses and drafted the manuscript. All of the authors reviewed and edited the manuscript and approved the final version of the manuscript.

Acknowledgements

We thank the participants for sharing their experiences.

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Tables

Table 1

Scores rated during the virtual reality tasks and psychological scale scores.

Variable

Mean

Standard deviation

Rating scores on the task

 

 

Total task score

296.01 

67.08 

Anti-difficulty score

48.02 

23.19 

Resolvability score

64.53 

19.81 

Actual effort score

51.55 

22.20 

Likelihood-of-realization score

62.39 

22.74 

Strength utilization score

69.53 

19.70 

Mental Health Continuum-Short Form

 

 

Emotional well-being

9.22 

3.09 

Social well-being

11.31 

4.52 

Psychological well-being

16.61 

7.20 

Rosenberg’s Self-Esteem Scale

30.69 

6.84 

Dispositional Hope Scale

Agency dimension

11.19 

2.55 

Pathways dimension

12.92 

2.21 

Life Orientation Test Revised

20.72 

4.62 

Simulator Sickness Questionnaire

24.42 

9.78

 

Table 2

Correlations between the task scores and psychological assessment scores. 

Measures

Total task score

Anti-difficulty score

Resolvability score

Actual effort score

Likelihood-of-realization score

Strength utilization score

MHC-SF

 

 

 

 

 

 

Emotional well-being

0.492**

0.396*

0.373*

0.197 

0.385*

0.308 

Social well-being

0.272 

-0.079 

0.205 

0.426**

0.276 

0.095 

Psychological well-being

0.501**

0.141 

0.284 

0.450**

0.391*

0.355*

RSES

0.435**

0.311 

0.366*

0.081 

0.347*

0.303 

DHS

 

 

 

 

 

 

Agency dimension

0.601**

0.329*

0.375*

0.354*

0.414*

0.486**

Pathways dimension

0.451**

0.311 

0.452**

0.151 

0.280 

0.361*

LOT-R

0.378*

0.021 

0.245 

-0.060 

0.457**

0.254 

RSES, Rosenberg’s Self-Esteem Scale; DHS, Dispositional Hope Scale; MHC-SF, Mental Health Continuum-Short Form; and LOT-R, Life Orientation Test Revised. * p<0.05, ** p<0.001

 

Table 3

Step-wise multiple linear regression model of psychological assessments by the task score.

Anti-difficulty score

Actual effort score

Likelihood-of-realization score

Dependent

 variable

Standardized
 coefficient (95% CI)

p 

Standardized
 coefficient (95% CI)

p 

Standardized
 coefficient (95% CI)

p

MHC-SF





Emotional 

well-being

0.366 (0.009-0.089)

0.019

0.354 (0.007-0.089)

0.023

Social 

well-being

0.426 (0.023-0.151)

0.01

Psychological 

well-being

0.384 (0.026-0.223)

0.015

0.310 (0.002-0.194)

0.047

LOT-R

0.457 (0.030-0.156)

0.005

Resolvability score

Strength utilization score

Dependent 

variable

Standardized
 coefficient (95% CI)

p 

Standardized
 coefficient (95% CI)

p 

RSES

0.366 (0.014-0.238)

0.028



DHS





agency dimension

0.308 (0.002-0.077)

0.041

0.439 (0.019-0.095)

0.005

pathways dimension

0.452 (0.016-0.085)

0.006












CI, confidence interval; MHC-SF, Mental Health Continuum-Short Form; LOT-R, Life Orientation Test Revised; RSES, Rosenberg’s Self-Esteem Scale; and DHS, Dispositional Hope Scale.