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      Brain activity modification produced by a single radioelectric asymmetric brain stimulation pulse: a new tool for neuropsychiatric treatments. Preliminary fMRI study

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          Abstract

          Purpose

          Radioelectric asymmetric brain stimulation technology with its treatment protocols has shown efficacy in various psychiatric disorders. The aim of this work was to highlight the mechanisms by which these positive effects are achieved. The current study was conducted to determine whether a single 500-millisecond radioelectric asymmetric conveyor (REAC) brain stimulation pulse (BSP), applied to the ear, can effect a modification of brain activity that is detectable using functional magnetic resonance imaging (fMRI).

          Methods

          Ten healthy volunteers, six females and four males, underwent fMRI during a simple finger-tapping motor task before and after receiving a single 500-millisecond REAC-BSP.

          Results

          The fMRI results indicate that the average variation in task-induced encephalic activation patterns is lower in subjects following the single REAC pulse.

          Conclusion

          The current report demonstrates that a single REAC-BSP is sufficient to modulate brain activity in awake subjects, able to be measured using fMRI. These initial results open new perspectives into the understanding of the effects of weak and brief radio pulses upon brain activity, and provide the basis for further indepth studies using REAC-BSP and fMRI.

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          Author and article information

          Journal
          Neuropsychiatr Dis Treat
          Neuropsychiatric Disease and Treatment
          Neuropsychiatric Disease and Treatment
          Dove Medical Press
          1176-6328
          1178-2021
          2011
          2011
          28 October 2011
          : 7
          : 649-654
          Affiliations
          [1 ]Department of Neuro-Psycho-Physio Pathology, Rinaldi Fontani Institute, Florence, Italy
          [2 ]Medical School of Occupational Medicine, University of Florence, Florence, Italy
          Author notes
          Correspondence: Salvatore Rinaldi, Rinaldi Fontani Institute, Viale Belfiore 43, 50144 Florence, Italy, Tel +39 055 290307, Fax +39 055 290399, Email srinaldi@ 123456irf.it
          Article
          ndt-7-649
          10.2147/NDT.S26123
          3215521
          22090800
          © 2011 Rinaldi et al, publisher and licensee Dove Medical Press Ltd

          This is an Open Access article which permits unrestricted noncommercial use, provided the original work is properly cited.

          Categories
          Original Research

          Neurology

          neuropsychiatric treatments, fmri, reac, brain modulation, brain stimulation

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