On THE RELATIONSHIP BETWEEN THE AUTOCORRELATION FUNCTION OF THE Α-Waves ON THE LEFT AND RIGHT HEMISPHERES AND SUBJECTIVE PREFERENCE FOR THE REVERBERATION TIME OF MUSIC SOUND FIELD

Relationship Between Subjective Preference and the Alpha-Brain Wave in Relation to the Initial Time Delay Gap With Vocal Music

“…Thus, it is recon"rmed that the left hemisphere is associated with the temporal factors of sound "elds such as t . This result supports the model [1,2], and is consistent with those of the previous investigations [4,5]. Also, it agrees well with hemispheric specialization [3].…”

“…The duration in this study is de"ned as 2¹"2)5 s, because it is found that this value typically corresponds to the physiological response associated with subjective preference [4]. It has been discovered that the value of C of alpha-brain waves from the left temporal area is related to the scale value of subjective preference in change of both t and reverberation time [4,5]. In this study, this method is utilized to demonstrate the hypothesis described below.…”

Magnetoencephalographic Responses Corresponding to Individual Subjective Preference of Sound Fields

“…A similar spontaneous activity exists in the auditory cortex [6][7][8]. To investigate the relationship between the EEG alpha-brain waves and subjective preferences of a sound field, Ando and Chen [9], Chen and Ando [10] and Nishio and Ando [11] developed a method of using the autocorrelation function (ACF) to analyze brain waves. They analyzed the effective duration of the envelope of the normalized ACF ðt e Þ of the alpha waves when the temporal factors Dt 1 , T sub and IACC were varied.…”

Analysis of MEG relating to subjective preference of visual motion stimuli

“…When the spatial factor, the listening level of a continuous speech signal was changed, the right hemisphere was activated significantly [9]. And when the temporal factors, the noise-burst tempo, the delay time of the single reflection (∆t1), and the subsequence reverberation time (T sub ), were changed, the left hemisphere was activated significantly [2][3][4]. The result of our experiment in a visual field is considered to be due to changing the temporal factor, the period of visual stimulus.…”

“…Ando and Chen and Chen and Ando developed a method of using the autocorrelation function (ACF) to analyze brain waves [3][4]. They analyzed the effective duration of the envelope of the normalized ACF (τ e ) of the alpha waves under changing the delay time of the single reflection (∆t 1 ) and the subsequent reverberation time (T sub ), which are temporal factors.…”