Canfield Caitlin F, Saudino Kimberly J
Boston University, Boston, MA 02215, USA.
Boston University, Boston, MA 02215, USA.
J Exp Child Psychol. 2016 Oct;150:112-129. doi: 10.1016/j.jecp.2016.05.005. Epub 2016 Jun 6.
Individual differences in early language development are related to a number of infant characteristics and skills, including temperament traits, cognitive ability, and social cognition. The current study aimed to assess the complex mechanisms underlying these relations by evaluating the ability to use social cues in a word-learning context along with temperament, cognitive ability, and expressive vocabulary in 71 18-month-old infants. A moderated mediation analysis indicated that infants' nonverbal cognitive ability affects their early vocabulary through its effect on their ability to use social cues, but only in infants with low nonverbal cognitive ability. Implications for both typical and atypical development are discussed.
早期语言发展的个体差异与许多婴儿特征和技能有关，包括气质特征、认知能力和社会认知。本研究旨在通过评估71名18个月大婴儿在单词学习情境中使用社交线索的能力以及气质、认知能力和表达性词汇，来评估这些关系背后的复杂机制。一项调节中介分析表明，婴儿的非言语认知能力通过影响其使用社交线索的能力来影响其早期词汇，但仅在非言语认知能力较低的婴儿中如此。文中讨论了对典型和非典型发展的启示。
