Analysis of rhythmic structures of real-time communication

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The relationship between auditory time perception and visual time perception was investigated. The (continuously-)filled-duration as observed frequently in the auditory modality for time intervals shorter than 1 s was established also in the visual modality utilizing a new type of stimulus patterns in which random-dot figures were used. How two adjacent time intervals marked by sound bursts were perceived as equal or unequal was investigated from a viewpoint on which brain science and psychophysics are merged. Rhythmic patterns of infants' speech in the linguistic environments of Japanese, English, and Chinese were studied and compared. Multimodal analyses of English speech communication are on a pilot stage.