 Arousal levels and facial video recordings will be collected by the laptop program. The chief investigator will review and analyse the results in order to determine whether eye movements during EMDR treatment significantly improves arousal levels i.e. is the patient more relaxed compared to no eye movements during EMDR treatment. Analysis will also include taking time points across each treatment session in order to determine whether or not arousal levels improve over the course of the session i.e. do patients anxiety levels reduce over the course of the session. 