Mental disorder, psychological problems and terrorist behaviour: A systematic review and meta-analysis.

Background: The link between mental health difficulties and terrorist behaviour has been the subject of debate for the last 50 years. Studies that report prevalence rates of mental health difficulties in terrorist samples or compare rates for those involved and not involved in terrorism, can inform this debate and the work of those responsible for countering violent extremism.

Objectives: To synthesise the prevalence rates of mental health difficulties in terrorist samples (Objective 1-Prevalence) and prevalence of mental health disorders pre-dating involvement in terrorism (Objective 2-Temporality).

PROTOCOL: Mental disorder, psychological problems and terrorist behaviour: A systematic review.

This is the protocol for a Campbell systematic review. The objectives are as follows: the first objective of the review (Objective 1-Prevalence) is to present a synthesis of the reported prevalence rates of mental health difficulties in terrorist samples. Where sufficient data is available, the synthesis will be sensitive to the heterogeneity of the terrorism phenomenon by exploring the rates of mental health difficulties for different forms of terrorism and for different terrorist roles (e.

Pre-deployment programmes for building resilience in military and frontline emergency service personnel.

Background: Military personnel and frontline emergency workers may be exposed to events that have the potential to precipitate negative mental health outcomes such as depression, symptoms of post-traumatic stress and even post-traumatic stress disorder (PTSD). Programmes have been designed to build psychological resilience before staff are deployed into the field. This review presents a synthesis of the literature on these "pre-deployment resilience-building programmes".