Other forms of eye movement therapy have been popularised, such as eye movement integration therapy (EMI) in which eye movements in specific directions provide access strategies to different sensory domains. EMI was originally developed from research in the field of neuro-linguistic programming (NLP) and has also been widely used in the treatment of PTSD. EMI uses slower eye movements that are thought to access internal dialogue or emotional and feeling areas of the brain. Initially the concept of specifically accessing domains associated with auditory-based cue was appealing as a therapy for an auditory based pathology, however, despite initial enthusiasm for EMI the specificity of these associations has been disputed.