PROTOTIP MODELA STIMULACIJE ZVUKOM TEMELJENE NA ENDOGENIM ELEKTROFIZIOLOŠKIM SIGNALIMA
2020
Introduction: Neurofeedback is a type of biofeedback that uses real-time displays of brain activity, most commonly electroencephalography (EEG), for measuring physiological response on external stimuli, such as light and sound. Main aim of our research is to compare neurofeedback effects on human subjects while listening sound sample composed based on Golden raio and sound patterns created by our prototype software, to establish the model for sound therapy based on endogenous bioelectrical signal.
Materials and methods: Research included 20 healthy subjects of different age and sex. Subjects were tested for neurofeedback response to sound sample based on Golden ratio (Bach’s fugue), sound patterns based on human EEG waves, as well as in silence, during five minutes of measurement using Biopac Pro system. For EEG wave samples sonification we developed our own software.
Results: Preliminary results of this pilot study reveal that there are electrophysiological changes in EEG while listening Golden ratio sound sample and EEG sonification sound, which can be considered as periodic peaks or periods of alternating alpha or beta activity.
Conclusion: Interpretation of preliminary research results show that used stimuli can be used for inducing evoked potential activity and can be used as a prototype for evidence-based sound therapy in research of neurofeedback response in indications related to alpha-training, but research must be expanded on larger number of subjects.
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