<原著>小児における両耳分離能の発達について

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The dichotic listening performance in children was examined. A few preliminary experiments were performed to determine the most effective stimuli in the dichotic listening test using adult subjects. Both consonant-vowel-consonant-vowel meaningful syllables (such as animals, plants, fishes etc.) and consonant-vowel-consonant-vowel nonsense syllables were investigated on 20 right-handed normal adults in order to estimate the effectiveness as the dichotic listening stimuli. Dichotic listening test results were affected by the familiarity of meaningful syllables and the monaural identifiability of the nonsense syllable stimuli. The relationship between the onset-time-asynchrony condition aud the dichotic listening test score was examined using the digits as the dichotic stimuli. The same dichotic listening scores were obtained regardless of onset-time-asynchrony conditions. From the resuls of preliminary experiments, the digits were concluded to be the most suitable stimuli in the dichotic listening test. In the main experiments, the digits were used for investigating dichotic listening performance in children. The digits were presented through earphones on both ears simultaneously in 60 right-handed normal children aged 5 to 10 years. Stimulus durations were 700 msec for each digit. Right ear advantage was observed for subjects between 5 and 7 years old. Reactions misheard the one ear stimuli to the other ear each other and answered correctly two stimuli to the both ears were found significantly more frequently in the 7-years-old group than others respectively.
近畿大学の論文
1991-03-25

<原著>小児における両耳分離能の発達について

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