張毓軒Yuna Jhang王慈薇WANG, TZU-WEITZU-WEIWANG語言治療與聽力學系碩士班語言治療組2026-03-192027/12/3120252025/6/18https://handle.ncl.edu.tw/11296/m75d8xhttps://scholars.csmu.edu.tw/handle/123456789/6199本研究使用LENA錄音機蒐錄十對家庭在家中的自然互動語料，分析嬰兒在不同互動情境下的發聲量（Volubility, i.e. utterance per minute）及典型喃語比例（Canonical Babbling Ratio, CBR），並以此推論嬰兒的發聲動機，同時亦探討嬰兒月齡及性別是否為影響上述嬰兒語音表現的因素。本論文選取了指導教授研究室的長期觀察個案資料庫中，其中十位嬰兒(五位男嬰及五位女嬰)在7個月及11個月大時的語料作為分析資料。本研究結果發現嬰兒在7個月時的發聲量顯著高於11個月，然而在11個月時的典型喃語比例則顯著高於7個月大，顯示嬰兒的語音日漸成熟，由量多質差，發展為量少質精，越來越接近成人語音。性別方面，男嬰的初始音發聲量顯著高於女嬰高，然而在典型喃語比例上女嬰則略高於男嬰，顯示男女在前語言時期即出現語音發展上的不同。除此之外，在互動情境上，相較於無口語互動或是少量口語互動的情境，嬰兒更傾向在有大量口語互動的情境下進行發聲，故以此推論，嬰兒的發聲動機可能更接近社交性的互動動機。透過研究結果，本研究證實在前語言時期，年齡與性別即為影響嬰兒語音發展的重要因素，且嬰兒更傾向在有口語互動的情境下發聲。This study used LENA recorders to collect natural interaction data from ten families in their home environments. It analyzed infants’ vocalization quantity (volubility, i.e., utterances per minute) and the proportion of canonical babbling (Canonical Babbling Ratio, CBR) across different interaction circumstances, aiming to infer the infants’ motivation for vocalizing. The study also examined whether infant age and sex were factors influencing these vocal behaviors. The data analyzed in this study were selected from a longitudinal database maintained by the advisor’s lab. It included recordings of ten infants (five males and five females) at 7 and 11 months of age. Findings revealed significantly higher volubility at 7 months and higher CBR at 11 months, suggesting a developmental shift from high quantity but low-quality vocalizations to fewer but more sophisticated ones. Males initially showed higher volubility, while females demonstrated slightly higher CBRs, indicating that sex differences in vocal development may emerge as early as the prelinguistic stage. Furthermore, infants were more likely to vocalize in rich verbal environments, highlighting a possible social motivation for vocalizations. In conclusion, the study confirms that age and sex are important factors influencing prelinguistic vocal development and that infants are more inclined to vocalize in interactive environments.嬰兒語音發聲量典型喃語互動情境性別家中環境錄音Infant VocalizationVolubilityCanonical BabblingParental InteractionSexLENA Recordingthesis