抄録
To evaluate human mind or feeling objectively, we analyzed electroencephalogram (EEG), electrocardiogram (ECG) and pneumogram. Rap music (Hip-Hop music) was applied to healthy subjects as auditory stimulus. EEG was recorded almost 30 min (5 min control, about 5 min during the music, and 15 min recovery) by Neurofax EEG-1100 (Nihonkohden, Tokyo) and analyzed by data analysis software, Focus/QP-211A. Electrode configuration of 25 points on scalp of subjects was based on the 10-10 electrode method by the International Encephalogram Federation. EEG was analyzed by mean FFT (Fast Fourier transform) to gain power of EEG spectrum and amplitudes of delta, theta, alpha (8–13 Hz), beta and gamma were calculated from the power . We detected that amplitudes of delta and theta waves on almost all electrode positions were reduced during listening the music. On the other hand, amplitudes of alpha wave were enhanced on many positions, mostly enhanced on the occipital regions, O1and O2. Amplitudes of beta and gamma waves on electrode positions, T7 and T8 in temporal and parietal regions were enhanced during the music. The amplitude of an enhancement was larger when listening more exciting stimulating Hip-Hop music. Intervals of respiratory ventilation were decreased during the music. Heart rate was markedly enhanced just after the beginning the music and sustained higher level during the music. Present results suggested that EEG, ECG and pneumogram were changed specifically in accompanying with emotional changes in response to exciting level of the subjects listening to stimulating Rap music. [J Physiol Sci. 2007;57 Suppl:S164]
