Electrophysiological changes during EMDR treatment in pateints with combat-related PTSD

  • Grozdanko Grbesa1,

    Affiliated with

    • Maja Simonovic1 and

      Affiliated with

      • Dorjanka Jankovic1

        Affiliated with

        Annals of General Psychiatry20109(Suppl 1):S209

        DOI: 10.1186/1744-859X-9-S1-S209

        Published: 22 April 2010

        Background

        Efficiency of the EMDR procedure is based on a presumption of neuropsychological changes in therapeutic process.The aim of the investigation is to scann and give evidence of electroactivity changes, during the process of EMDR procedure and after finishing it.

        Materials and methods

        We have recorded a continual polygraph EEG, before, during and after EMDR therapy, in patient with combat-related PTSD.

        Results

        Before the treatment, EEG recorded basic activity of low voltage (attenuation) of 20 μV, frequency of beta range (17-26 Hz), bioccipital, with no pathologic activity. Patient had prominent vegetative symptoms (anxiety, heart rate 100/min). Background activity immediately after the treatment records the amplitude values of around 50 μV, frequency of around 11-12 Hz. After the end of the treatment background activity possesses the amplitude value of about 37 μV, holding the persistence in frequency.

        Conclusions

        If the EMDR treatment is successful, sudden increase of amplityde activity is noted imensly. This sharp border line, which signifies normal activity, appears in 2-3 seconds affter the desensitize phase. The investigation suggest that from neurophysiological point of view, cortex (in EMDR procedure), works according to the principle "all or nothing". If there is processing of traumatic memory, the activity gets completly normal. If the therapy is not successful, there are numerous artefacts, because of increased muscle activity. This kind of activity, in our investigation is marked as "Artefact therapy".

        The results, indicate maintaining low level of amplitude values of electrocortical activities during the treatment, as well as increase after successful treatment. The increase of amlitude is corelated to decrease of anxiety after the successful treatment.

        Declarations

        Acknowledgements

        The results, indicate maintaining low level of amplitude values of electrocortical activities during the treatment, as well as increase after successful treatment. The increase of amlitude is corelated to decrease of anxiety after the successful treatment.

        Authors’ Affiliations

        (1)
        Clinic for Mental Health, Clinical Centre

        References

        1. EEG Asymmetry and its Clinical Correlates in PTSD, Steven Silverstein, Stewart Shankman. Lea Williams, Patrick Hopkinson, Richard Bryant

        Copyright

        © Grbesa et al.; licensee BioMed Central Ltd. 2009

        This article is published under license to BioMed Central Ltd.

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