Higuchi Fractal Dimension Analysis of EEG Signal Before and After OM Chanting to Observe Overall Effect on Brain

The OM chanting is one type of the meditation. In the present paper, the author tried to observe its effect on the brain. To obtain insight of the brain, the author recorded EEG signal before and after OM chanting for 10 subjects. Author used a technique of the complexity measure based on fractal analysis to compare the EEG signal before and after OM chanting. Time domain fractal dimension was calculated using Higuchi algorithm. (HFD).Paper present the results based on average HFD all over the electrodes for each subject before and after OM chanting.DOI:http://dx.doi.org/10.11591/ijece.v4i4.580

Integrated multimodal interaction framework for virtual reality foot reflexology stress therapy

Frameworks in interaction research have seen varying compositions from numerous researchers, and have been applied for either a specific or general purposes in several domains. Previous studies have highlighted virtual reality (VR) in stress therapy, and revealed the potential of foot reflexology therapy using VR technology. However, the interaction framework for foot reflexology through virtual reality requires further investigation. This study presents the design and evaluation of an integrated multimodal interaction framework for virtual reality foot reflexology stress therapy. The components of the proposed framework were identified from the literature review and previous research, which included design principles, technology, structural components, multimodal interaction architecture, and segment composition. This formed the proposed integrated multimodal interaction framework for virtual reality foot reflexology stress therapy. The proposed framework was then validated using expert reviews. This was followed by prototype development, which explored the effectiveness of the virtual reality foot reflexology therapy application on relaxation and stress relief using Smith Relaxation States Inventory (SRSI-3). A pre and post-test intervention quasi experiment was employed in the study for the evaluation. The findings revealed that Virtual Reality Foot Reflexology Stress Therapy (VR–FRST) effectively evokes the relaxation state categories of transcendence, mindfulness, positive energy, and basic relaxation, and also reduces users stress state. This research provides a concise, organized, practical and validated integrated multimodal interaction framework for the design and development of foot reflexology therapy in a virtual environment. This contributes to the field of interaction design for virtual reality developers and complementary therapy for the alternative medical practitioners