The Efficiency of Transcranial Direct Current Stimulation in the Treatment of Anorexia Nervosa

The aim of the study is to assess the effect of tDCS stimulation on psychological and biological factors in patient suffering for AN with particular attention to the safety of such additional therapy. Transcranial direct current stimulation (tDCS) is a non-invasive and currently considered safe method of neurostimulation. It is based on the use of direct current of very low intensity, up to 2000uA-2mA, and supplying it to the brain through electrodes placed on the scalp. In this way, the polarity of the cell membranes of neurons is induced, and this influences changes in the cortical excitation of the brain. Results confirming the efficacy of such a therapeutic approach would provide support for the introduction of brain stimulations as a valuable part of treatment in psychiatric wards but also as a part of home-based treatment. The protocol was developed by a multidisciplinary researcher team of a psychiatrist, psychologist, psychotherapist and nutritionists. Thanks to this, it is possible to evaluate the progress taking place in various fields. To the best of our knowledge, this will be the first intervention study assessing the efficacy of tDCS in AN taking into account not only psychological tests, but also biochemical markers (including levels of neurotrophins) or the electrical activity of the brain.