The Link Between Parents' Psychological Condition and Children's First Language Acquisition

Parents act as intermediaries in a child’s first language acquisition, providing examples of correct and proper language use from birth. In the process of acquiring a first language, children learn by observing and listening to the linguistic behaviour of those around them. Children absorb not only the vocabulary used by their parents, but also sentence structures and the intonation applied in everyday conversation. Research by Kholisah et al. (2025) shows that parents play a crucial role as language models, providers of stimulus, guides in language use, and motivators of children’s linguistic development.

This research states that parents serve as highly important models because children naturally tend to absorb language patterns from the people they interact with most frequently. However, in children’s first language acquisition, it is also necessary to consider whether parents carry out their communication in a good psychological state. Therefore, a child’s first language acquisition is closely tied to the parents, particularly to a family background with an adequate psychological condition, as this factor can determine the direction of the child’s linguistic development from birth into adulthood.

Parents can provide consistent verbal stimulus and responsive interaction to accelerate a child’s language development, but this is only effective when parents are psychologically healthy and stable. Children need a good and responsive language environment to develop their language abilities optimally, yet the quality of that interaction depends heavily on the parents’ emotional and mental state.

For example, with a six-month-old child, when parents use vocabulary or speak in a gentle tone with cheerful facial expressions, this can help the child recognise phonemes, build emotional closeness with the parents, and stimulate cognitive processing in the brain for interactive communication. However, if parents experience stress, depression, or emotional disturbances, this gentle tone and cheerful expression become difficult to achieve, and the child loses a vital stimulus for language development. Roza & Rani (2025) state that one of the primary forms of this interaction is child-directed speech (CDS), a style of adult speech towards children characterised by a higher pitch, slower tempo, clarified pronunciation, varied and expressive intonation, and repetition and simplification of sentence structures.

In their book, Roza, W & Rani, A (2025) compare formal theory (innate grammar) with usage-based theory (social interaction and experience), concluding that language acquisition approaches grounded in social interaction and actual usage show that language is a product of meaningful communicative experience, not merely the result of activating innate cognitive systems. This view suggests that emotion, motivation, and social interaction play a significant role in children’s language development, so emotional support from psychologically healthy parents is a prerequisite for children to engage actively in first language learning.

Thus, parents’ psychological condition is not merely an additional factor in first language acquisition, but the most important factor in building the foundation that determines whether verbal stimulus and responsive interaction can be provided optimally. Parents who are psychologically healthy and stable are able to deliver effective CDS, cheerful expressions, and the gentle tone children need to recognise phonemes and build emotional closeness. Parents can therefore only fulfil their role as language intermediaries to the fullest when their psychological condition is adequate, and this also determines the direction of a child’s linguistic development from birth to adulthood.

Social media posts featuring Kenneth, known as Kenkulus (a combination of Ken and calculus), show a child able to recognise concepts such as mathematical formulae, body organs, and the names of planets at the age of two. This is tangible empirical evidence that a healthy and stable parental psychological condition determines the success of verbal stimulation in children’s first language acquisition. On social media, particularly the TikTok account @imchika21, his parents actively post Kenneth’s activities.

In these posts, Kenneth not only demonstrates a broad vocabulary but also communicates actively and responsively. He responds well to his parents’ questions, explains complex concepts, asks critical questions unusual for a child his age, and shows high enthusiasm in the learning process. These abilities emerge from an optimal psychological environment at home, where Kenneth’s parents possess healthy emotional states, strong motivation to develop their child’s potential, and the mental stability that enables them to provide consistent stimulation.

As seen in every social media post, Kenneth’s parents use a gentle tone when asking or answering questions, and they always offer appreciation when Kenneth succeeds at something or answers a question difficult for a child his age. In addition, Kenneth has been consistently provided with storybooks and knowledge books throughout his development. The gentle tone used by Kenneth’s parents is a form of CDS that helps the child recognise phonemes, build emotional closeness, and stimulate cognitive processing in the brain for interactive communication.

Continuous appreciation creates a sense of emotional security that encourages Kenneth to explore new vocabulary, produce more complex sentences, and interact actively without fear of criticism. The consistent provision of books from an early age enriches his vocabulary and introduces more varied sentence structures. Thus, the social media posts featuring Kenneth demonstrate that parents with a healthy and stable psychological condition are able to provide effective CDS, cheerful expressions, and the gentle tone children need to recognise phonemes and build emotional closeness, so parents can only carry out their role as language intermediaries to the maximum when their psychological condition is adequate.