嗅覚刺激時の胃電図における最小埋め込み次元推定

抄録

In order to investigate the potential as a quantitative method of odor evaluation, nonlinear analysis of electrogastrograms was performed. The determinism in the mathematical model generating electrogastrograms (EGGs) during olfactory stimulation was evaluated by the Wayland algorithm. The results showed that the translation error increased with the concentration of the odor samples. The minimum embedding dimension of the attractor reconstructed from the EGGs was estimated by the false nearest neighbors method and was estimated to be 5 to 8 dimensions. However, it was considered necessary to evaluate using the method eliminated the arbitrariness of the threshold value because the minimum embedding dimension varied depending on the threshold value.