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Brain Dev. 1980;2(4):353-7.

Prevalence of sleep-talking in childhood.


This report is on the prevalence of somniloquy, as revealed by a populational survey of 2,022 schoolchildren aged from 3 to 10 years. Data were collected by means of a multiple choice questionnaire aimed at the investigation of sleep characteristics (sleep characteristics questionnaire-SCQ) and submitted to statistical analysis. The objective was to detect the prevalence of sleep-talk and influence of age, sex and socioeconomic class on its frequency. About half the children of all ages presented somniloquy at least once a year, but less than 10% presented it everyday. No clearmarked correlation with age, sex or socioeconomic class was found. These results do not confirm the generally accepted notion that there is a higher prevalence in the beginning of the first decade of life and suggest also the necessity of further quantitative and objective assessment of this phenomenon.

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