Psychological Medicine; Cambridge Vol. 48, Iss. 12,  (Sep 2018): 1937-1944. DOI:10.1017/S0033291717003816 Fifty years have passed since social anxiety disorder (SAD) was first differentiated from other phobias. In the years since research has largely aligned with the zeitgeist of categorical classificatory frameworks, and has spanned identifying causes, maintenance factors and innovative interventions. Despite significant advances in the field, the capacity to conceptualise SAD as an independent entity is limited given the heterogeneity and dimensionality of diagnostic criteria, high rates of comorbidity, and non-specificity of aetiological mechanisms, maintaining factors and approaches to treatment.. Please contact the library to request a copy of this article - http://bit.ly/1Xyazai