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specifiers to chart the current status and longitudinal course of psychotic disorders. Some differences, however, are likely to remain between DSM and ICD in the diagnostic criteria for schizophrenia, such as illness duration of six months in DSM-5 versus one month in ICD, and impairment being an illness criterion in DSM-5 but not in ICD-11. DSM-5 with its categorical symptom-based approach is certainly not a paradigm shift that some had wished for. However, it acknowledges that the boundaries between nosological entities are unlikely to be categorical and proposes a dimensional assessment of symptoms and related phenomena (section III). It advocates that clinicians should assess the patient along the five domains that define schizophrenia spectrum disorders and, in addition, on cognitive function, depression and mania to capture the heterogeneity in symptoms and severity present across

individuals. This, if adopted by the majority, should allow a clearer picture of the causes and treatments of schizophrenia spectrum disorders to emerge than afforded by DSM-IV. It may also enable a link between DSM-5 and the Research Domain Criteria (RDoC) initiative (Insel et al., 2010). Any such link, however, is likely to be weak because the domains proposed by DSM-5 differ considerably from the dimensions of RDoC. The dimensional assessment of cognitive function in DSM-5 is perhaps the one aspect most aligned to RDoC, but still unlike the single dimension of cognitive function in DSM-5, RDoC differentiates, quite rightly, among different aspects of cognitive functions (e.g. attention, working memory).

The author reports no conflicts of interest. The author alone is responsible for the content and writing of the paper.

Heckers S (2008) Making progress in schizophrenia research. Schizophrenia Bulletin 34: 591–594. Heckers S, Barch DM, Bustillo J, et  al. (2013). Structure of the psychotic disorders classification in DSM-5. Schizophrenia Research 50: 11–14. Insel T, Cuthbert B, Garvey M, et  al. (2010) Research domain criteria (RDoC): toward a new classification framework for research on mental disorders. American Journal of Psychiatry 167: 748–451. Owen PR (2012) Portrayals of schizophrenia by entertainment media: a content analysis of contemporary movies. Psychiatric Services 63: 655–659. Tandon R, Gaebel W, Barch DM, et  al. (2013) Definition and description of schizophrenia in the DSM-5. Schizophrenia Research 150: 3–10.

A research agenda to progress treatment of social anxiety disorder: Commentary on Crome et al., DSM-IV and DSM-5 Social Anxiety Disorder in the Australian Community Ronald M Rapee, Nickolai Titov and Blake Dear

together with implications for changes to the diagnostic criteria in DSM5. Among their conclusions, the authors point to the high prevalence but low rates of treatment seeking among adults with SAD. This combination of high prevalence and low treatment seeking underlies the significant societal burden and the public health significance of this mental health disorder. In this commentary we discuss this significance and set out a research agenda that holds potentially important directions for Australia’s mental health initiatives. People with SAD, as described by Crome and colleagues, have one of the lowest rates of treatment seeking of any mental disorder. Moreover, even when treatment is sought, it is typically delayed from disorder onset by several decades. It is believed that the nature of SAD, particularly the significant fears of negative evaluation and uncertainty, may underlie delayed treatment seeking. Fortunately, recent developments suggest three avenues that may help to overcome some of the barriers to treatment for adults with SAD: early

intervention, improved recognition by general practitioners, and remotely delivered psychological treatments, for example, treatments delivered via the internet or workbook. Improved understanding of the aetiology of SAD has led to recent development of prevention and early intervention programs. Because SAD has its mean onset in the early-to-mid teens, with many cases beginning far earlier, prevention and early intervention programs must be directed toward this age group. One of the most extensively evaluated programs, Cool Little Kids, provides brief education for parents of inhibited preschool children and long-term evaluations reveal significantly reduced anxiety, especially SAD, at ages 7 and 15, along with reductions in comorbid mood disorder at age 15 (Rapee, 2013; Rapee, et  al., 2010). Other promising research has evaluated the possibility of reducing SAD through early intervention with school age children (Sportel et  al., 2013). Despite this promising potential of early intervention for SAD,

Centre for Emotional Health, Department of Psychology, Macquarie University, Sydney, NSW, Australia Corresponding author: Ronald M Rapee, Centre for Emotional Health, Department of Psychology, Macquarie University, Sydney, NSW 2109, Australia. Email: [email protected] DOI: 10.1177/0004867414551068

Social anxiety disorder (SAD) is a common and disabling disorder. Crome and colleagues provide an important update on several aspects of the epidemiology of SAD from the latest National Survey of Mental Health and Wellbeing

Declaration of interest

This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.

References

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ANZJP Correspondence considerably more research is needed to maximise the efficacy of and increase access to these interventions. Crome and colleagues report that the majority of Australians who seek treatment for SAD first present to their general practitioner. Importantly, because SAD is a risk factor for the development of additional mental disorders, targeted assistance to GPs in the recognition and management of SAD will translate to decreased social burden. Fortunately, several brief, easy to administer and empirically evaluated screening measures have now been developed and are freely available for use in routine practice. One example is the Mini-SPIN, which contains three questions and has excellent diagnostic specificity (Seeley-Wait et al., 2009). The development of online assessment and treatment services, such as the MindSpot Clinic (www.mindspot.org. au), now also offer treatment for people who might not access face-to-face services. These online treatments can be integrated with face-to-face services provided directly by the GP or a mental health professional. However, the most effective and efficient combination of online and face-to-face service delivery remains an empirical question requiring careful evaluation. Finally, the delivery of psychological treatments via internet or bibliotherapy represent treatment models that can reduce barriers to treatment, particularly for those reluctant or unable to access face-to-face services (Andersson and Titov, 2014). For example, one research trial has shown

that combining printed bibliotherapy materials with traditional group-based face-to-face cognitive behaviour therapy (CBT) for SAD reduced the therapist time by 25% (Rapee et al., 2007). Recent developments in internetdelivered psychological treatment programs are now allowing for even more efficient delivery and considerably greater access. For example, several studies now indicate that CBT for SAD can be delivered entirely via the internet with clinical outcomes comparable with those achieved via traditional face-to-face treatment (Andrews et  al., 2011). In Australia and other countries the growing number of online services are extending the provision of services to traditionally hard-to-reach people in rural and remote regions as well as providing improved efficiency to meet overwhelming demand. Notwithstanding these promising findings, numerous research imperatives remain in this area and, given the early onset of SAD, one critical target for future research is the continued development of online interventions for young people. As highlighted by Crome and colleagues, in this volume, SAD is a cause of significant societal burden in Australia due to its high prevalence, significant impact and the low rates of treatment seeking. Surprisingly, Crome et  al. report that the prevalence of this disorder has not decreased in the decade between the first and second National Surveys. Several directions of research promise to improve our ability to reduce

the burden from SAD including prevention and early intervention, development of assistance to general practitioners and the growing availability of remotely delivered psychological treatments. A number of research questions remain in all of these areas and further investment in research into these directions will pay off in reduced disease burden. See Research by Crome et al., 2015, 49(3): 227–235.

References Andersson G and Titov N (2014) Advantages and limitations of Internet-based interventions for common mental disorders. World Psychiatry 13: 4–11. Andrews G, Davies M and Titov N (2011) Effectiveness randomized controlled trial of face to face versus Internet cognitive behaviour therapy for social phobia. Australian and New Zealand Journal of Psychiatry 45(4): 337–340. Rapee RM (2013) The preventative effects of a brief, early intervention for preschool-aged children at risk for internalising: Follow-up into middle adolescence. Journal of Child Psychology and Psychiatry 54(7): 780–788. Rapee RM, Abbott MJ, Baillie AJ, et  al. (2007) Treatment of social phobia through pure self help and therapist-augmented self help. British Journal of Psychiatry 191: 246–252. Rapee RM, Kennedy S, Ingram M, et  al. (2010) Altering the trajectory of anxiety in at-risk young children. American Journal of Psychiatry 167: 1518–1525. Seeley-Wait E, Abbott MJ and Rapee RM (2009) Psychometric properties of the mini-SPIN. The Primary Care Companion to the Journal of Clinical Psychiatry 11(5): 231–236. Sportel B, de Hullu E, de Jong PJ, et  al. (2013) Cognitive bias modification versus CBT in reducing adolescent social anxiety: A randomized controlled trial. PLoS ONE 8(5).

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A research agenda to progress treatment of social anxiety disorder: commentary on Crome et al., DSM-IV and DSM-5 social anxiety disorder in the Australian community.

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