Review of hikikomori: A global health issue, identification and treatment.

In the early 2000s, Japanese society became aware of the social phenomenon of hikikomori or social withdrawal among Japanese youth. However, the hikikomori phenomenon was not a domestic Japanese social problem, but a global social and health issue or a global silent epidemic. A literature review was conducted on the global silent epidemic issue and identifying hikikomori and effective treatment. This paper will reveal how to identify hikikomori with biomarkers or determinants and treatments for hikikomori. Impact of COVID-19 on hikikomori was briefly investigated.

5-year follow-up of adolescents with social anxiety disorder: Current functioning during COVID-19.

The present study followed-up adolescents with social anxiety disorder (SAD) during the COVID-19 pandemic, approximately 5-years following their participation in an Attention Bias Modification Training (ABMT) program (Ollendick et al., 2019). The current study aimed to evaluate current functioning and quality of life (QoL) during the emerging adulthood period. Participants included 27 young adults who completed a randomized controlled trial of ABMT and were available for follow-up. Participants filled out self-report measures of QoL and functioning and underwent a clinical interview to assess current severity of social anxiety. Clinician-rated symptoms of SAD significantly decreased from post-treatment to 5-year follow-up. Additionally, results demonstrated that social anxiety severity was significantly related to poorer self-reported physical and psychological health as well as poorer functioning with regard to social distancing fears during COVID-19. Lastly, when evaluating change in symptoms over time, increases in social anxiety severity over a 5-year period significantly predicted worsened social distancing fears during COVID-19.

INTERNET-DELIVERED LOW-INTENSITY CBT FOR PEOPLE WITH SOCIAL ANXIETY DISORDER IN A PERIOD OF COVID-19: RESULTS OF PILOT RESEARCH.

OBJECTIVE: The aim: The study aims to provide evidence of the effectiveness of online low-intensity CBT-based psychological interventions on the psychological well-being of people with social anxiety disorders and related impairments in the COVID-19 pandemic. PATIENTS AND METHODS: Materials and methods: 222 volunteers aged 18-35 years included in study: low-intensity CBT group (n=106) and control group (n=116). To assess the mental health prob¬lems were used International Neuropsychiatric Interview (MINI) and a set of IAPT scales. Analyses considered levels of pre-post intervention effect sizes and clinically significant improvement of symptoms of social anxiety disorder, generalized anxiety disorder, depression, and distress in maintaining general and work activity scores. RESULTS: Results: Comparisons between the low-intensity interventions group and control (self-help guide psychological care as usual) indicated more reduction in the severity of symp¬toms of social anxiety disorder and comorbid impairments associated with depression or generalized anxiety disorder. Changes for social phobia and other outcomes indicate that the odds of relapse or exacerbation of symptoms in the control group are more significant than those after a CBT-based low-intensity psychosocial care program. Analysis showed a significant interaction between outcomes scores and the number of sessions: more than five online sessions and homework with a self-help guide improved outcome. CONCLUSION: Conclusions: This pilot trial provides initial evidence that low-intensity online interventions based on CBT result in reductions in psychological problems for persons with a social anxiety disorder during the COVID-19 pandemic.

A novel procedure to investigate social anxiety using videoconferencing software: A proof-of-concept study.

Social anxiety disorder (SAD) is very common and can be significantly disabling. New treatments are needed as the remission rate for SAD is the lowest of all the anxiety disorders. Experimental medicine models, in which features resembling a clinical disorder are experimentally induced, are a cost-effective and timely approach to explore potential novel treatments for psychiatric disorders. Following the emergence of SARS-CoV-2, there is a need to develop experimental medicine models that can be carried out remotely. We developed a novel procedure to investigate SAD (the InterneT-based Stress test for Social Anxiety Disorder; ITSSAD) that can be carried out entirely online by a single investigator, potentially reducing costs and maximising internal reliability. The procedure involves an anticipatory period followed by a naturalistic social interaction task. In a sample of 20 non-treatment-seeking volunteers with symptoms of SAD, the ITSSAD induced significant subjective anxiety and reduced positive affect. Further, increased social anxiety symptoms at baseline predicted increased anxiety during the social interaction task. This protocol needs further validation with physiological measures. The ITSSAD is a new tool for researchers to investigate mechanisms underlying social anxiety disorder.

The Relationship Between Hikikomori Risk and Internet Use During COVID-19 Restrictions.

This study explores the phenomenon of hikikomori, or extreme social isolation, which for the past 20 years has been associated with a range of negative outcomes, including psychological, financial, and social. As hikikomori is associated with marked social withdrawal in one's home and increased Internet use, it has been suggested that the social and technological changes brought about by COVID-19 restrictions may exacerbate the risk of hikikomori in young adults. This study, therefore, sought to identify the relationship between hikikomori risk and changes in Internet use for young people aged 16-24 years during COVID-19 restrictions. An international sample of 826 participants completed an online survey consisting of questions about demographics, experience of lockdown restrictions in the previous 12 months, changes to Internet use in the previous 12 months and a hikikomori risk scale. Higher hikikomori risk was associated with being male, greater time spent in lockdown, and leaving the house less frequently. An increase in Internet use during lockdown was associated with reduced risk of hikikomori. Findings are discussed in relation to gender differences in the type of Internet use engaged in by males and females. It is concluded that online social interaction may be a means of mitigating hikikomori risk in post-COVID-19 societies.

A follow-up study on treatment effects of cognitive-behavioral therapy on social anxiety disorder: Impact of COVID-19 fear during post-lockdown period.

There is a paucity of research on the role of COVID-19 related fear and lockdown on social anxiety disorder (SAD). In a follow-up study during post-lockdown period, we compared social anxiety of individuals with SAD who received cognitive-behavioral therapy (CBT) versus psychoeducational-supportive therapy (PST) before the COVID-19 pandemic, and the impact of COVID-19 related fear. Social anxiety severity was rated by the Social Phobia Inventory (SPIN) at pre-intervention, post-intervention, and post-lockdown periods. Fear of COVID-19 was assessed during the post-lockdown period. The treatment effects in the CBT group (n = 33) were significantly better than the PST group (n = 32) at post-intervention; this was maintained at 14-months following intervention despite COVID-related lockdown. In the PST group, there was no change following the intervention; and the social phobia increased after lockdown. The CBT group had significantly less COVID-19 related fear than the PST group. Social anxiety was positively correlated with fear of COVID-19; and individuals with comorbidities had significantly more fear. Using the hierarchical multiple regression, SPIN post-intervention, COVID-19 fear, and duration of SAD predicted social anxiety severity during the post-lockdown period. In conclusion, the effect of CBT for SAD was maintained through lockdown and was associated with significantly less COVID-19 related fear.

Historical reflection on Taijin-kyofusho during COVID-19: a global phenomenon of social anxiety?

Although fear and anxiety have gradually become a shared experience in the time of COVID-19, few studies have examined its content from historical, cultural, and phenomenological perspectives concerning the self-awareness and alterity. We discuss the development of the ubiquitous nature of Taijin-kyofusho (TKS), a subtype of social anxiety disorder (SAD) originated and considered culturally-bound in the 1930s Japan involving fear of offending or displeasing other people. Considering the historical processes of disease classification, advances in cognitive neurosciences, and the need to better understand the content of suffering, psychiatric nosology for SAD still appears controversial and requires further investigations.

What Is the Impact of COVID-19 Pandemic on Patients with Pre-Existing Mood or Anxiety Disorder? An Observational Prospective Study.

Background and Objectives: This observational prospective study aims to examine the psychological and psychopathological impact of the pandemic stress on patients with pre-existing mood, anxiety and obsessive-compulsive disorders. Materials and Methods: The study includes 386 consecutive patients recruited from 10 March to 30 June 2020 among those being treated at the Institute of Psychopathology in Rome (Italy) with an age ≥18 years and meeting DSM-5 criteria for major depressive disorder (MDD) (35.2%), bipolar I (BD-I) (21.5%) or II (BD-II) (28.8%) disorder, obsessive-compulsive disorder (OCD) (7.5%), panic disorder (PD) (7.0%) or social anxiety (SA). A total of 34.2% had lifetime comorbid Axis I disorders and 15.3% had alcohol/drug abuse disorders. Using a semi-structured interview, we investigated if the impact of COVID-19 stress for patients has been similar, higher or lower than that of their family and friends and, for patients with relapse/symptoms worsening, if there was a relationship between the clinical condition worsening and the pandemic stress. Results: Compared with that experienced by their family members and friends, the psychological impact of pandemic stress was similar in 52.1% of the sample, better in 37.1% and worse in 10.8%. In 21 patients (5.4%), the stress triggered a recurrence or worsened the symptoms. Patients with OCD had a higher rate of worsening due to pandemic stress compared to patients with MDD (p = 0.033), although, overall, the χ2 test was not significant among primary diagnoses (χ2 = 8.368; p = 0.057). Conclusions: The psychological and psychopathological consequences of COVID-19 stress in our outpatients were very modest. The continuity of care offered during the lockdown could explain the results.

Behavioural responses and anxiety symptoms during the coronavirus disease 2019 (COVID-19) pandemic in Japan: A large scale cross-sectional study.

BACKGROUND: This study explored the behavioural responses and anxiety symptoms of the general adult population in Japan during the ongoing coronavirus disease 2019 (COVID-19) outbreak. METHODS: A web-based cross-sectional survey was conducted between 12th and May 13, 2020. Quota sampling was used to attain equal gender and age distributions representative of the Japanese population. RESULTS: A total of 4127 complete responses were analysed. Higher educational level (B = 0.045, p = 0.002) and household income (B = 0.04, p = 0.009) were associated with a higher increase in preventive measures when comparing before and after the state of emergency was declared. The highest reported social anxiety was a feeling of fear (65.6%), followed by embarrassment (43.8%), keeping infection a secret (41.3%), avoidance (41.3%), and stigma (25.5%). A total of 86.1% of the respondents reported moderate to severe anxiety. The partial least square-based structural equation modelling (PLS-SEM) revealed that being female has the greatest effect (B = 0.246, p < 0.0001) on higher current preventive measures, followed by social anxiety (B = 0.119; p = 0.001) and State-Trait Anxiety Inventory scores (B = 0.153; p < 0.001). Perceived susceptibility (B = 0.033, p = 0.020), knowing someone who have been diagnosed with COVID-19 (B = 0.097, p < 0.001), higher income (B = 0.079, p < 0.001) and educational level (B = 0.045; p = 0.004) all had a small but significant effect on influencing levels of preventive measures. CONCLUSIONS: A moderate level of preventive practices found in this study indicates the need to encourage behavioural change to limit the spread of the coronavirus. The provision of mental health services is warranted as anxiety symptoms are prevalent.