Tenuta Flaviana, Marcone Roberto, Graziano Elvira, Craig Francesco, Romito Luciano, Costabile Angela
Department of Cultures, Education and Society, University of Calabria, 87036 Arcavacata, Italy.
Department of Psychology, University of Campania "Luigi Vanvitelli", 81100 Caserta, Italy.
Children (Basel). 2023 Feb 21;10(3):413. doi: 10.3390/children10030413.
Infant-directed speech (IDS) is an essential factor of mother-infant interaction and facilitates early language processing and word learning during dyadic interactions. This study aimed to longitudinally investigate emotional and prosodic components of IDS in the first year of life by analyzing children's responses to the different prosodic trends that mothers use during the observation of mother-child interactions. Seventeen mothers and infants were recruited for this study during their first hospitalization. The study involved observing communication changes in face-to-face interactions between the mother and child at three, six, and nine months after the child's birth. We analyzed the relationship between gaze direction, smiling, speech speed, and clarity. The results showed that the IDS differs in production when compared to the age of the child; at only nine months, there is high intensity. The same is evident from the results related to the elocution velocity. The verbal sensitivity of the mother and the ability to tune in to the affective states of the child, especially at nine months, can predict the child's understanding of future language.
婴儿指向性言语（IDS）是母婴互动的一个重要因素，在二元互动过程中有助于早期语言处理和词汇学习。本研究旨在通过分析儿童对母亲在观察母婴互动时使用的不同韵律趋势的反应，纵向研究生命第一年中IDS的情感和韵律成分。本研究招募了17对母婴，他们在首次住院期间参与研究。该研究包括观察孩子出生后三个月、六个月和九个月时母婴面对面互动中的交流变化。我们分析了注视方向、微笑、语速和清晰度之间的关系。结果表明，与儿童年龄相比，IDS在表达上存在差异；仅在九个月时，强度较高。从与演讲速度相关的结果中也可以明显看出这一点。母亲的言语敏感性以及与孩子情感状态协调的能力，尤其是在九个月时，能够预测孩子对未来语言的理解。
