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  The first aim of the proposed project is to find in healthy subjects task specific features of the dynamics of cortical rhythms reflected in the EEG recordings during quiet and sensory-conflicted upright stance paradigms and to find their correlations with the stabilographic, electromyographic and psychometric measures that describe the tasks performance.

  The next aim of the project is to study the effect of  t-VNS as a  neuromodulator of the cortical dynamics and the above mentioned quiet upright stance task descriptors, thus creating the reference base for the development of new diagnostic tests and alternative therapy techniques for the patients, thus improving quality of life of healthy and healthy aged people.

  These aims will be pursued with an interdisciplinary approach and improved methodology of the experimental design and data analysis.

  The main scientific hypothesis is that there are task specific patterns of the EEG images of the quiet stance during sensory conflict. Another hypothesis is that t-VNS as a neuromodulator will change those patterns, which will affect the quiet stance descriptors in a specific way, which will support the main hypothesis.

  The results from this complex study of the EEG image of the quiet stance during sensory conflict may bring a new breakthrough scientific knowledge about cortical regulation of stance in healthy subjects and an invaluable reference base for the future studies targeting falls prevention in fast growing elderly population with posture and motor control problems and dementias due to the neurodegenerative diseases like: Alzheimer's disease, Parkinson's disease, etc. The work on the t-VNS as a neuromodulator in rest and during quiet stance also may have important theoretical and practical outcomes which will improve the quality of life of healthy and diseased populations, thus alleviating the healthcare social burden.