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According to research, postnatal depressive mood can have an impact on children's development and speech. However, it was previously unknown how this impairment manifests itself in infants' early language development.In a study, scientists at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig have now investigated how well babies can distinguish speech sounds from one another depending on their mother's mood.This ability is considered an important prerequisite for further steps towards a well-developed language. If sounds can be distinguished from one another, individual words can also be distinguished from one another. It became clear that if mothers indicate a more negative mood two months after birth, their children show on average less mature processing of speech sounds at the age of six months.The infants found it particularly difficult to distinguish between syllable pitches. Specifically, they showed that the development of their so-called Mismatch Response was delayed than in those whose mothers were in a more positive mood. This Mismatch Response in turn serves as a measure of how well someone can separate sounds from one another.If this development towards a pronounced mismatch reaction is delayed, this is considered an indication of an increased risk of suffering from a speech disorder later in life."We suspect that the affected mothers use less infant-directed-speech," explains Gesa Schaadt, a postdoc at MPI CBS, professor of development in childhood and adolescence at FU Berlin and first author of the study, which has now appeared in the journal JAMA Network Open."They probably use less pitch variation when directing speech to their infants." This also leads to a more limited perception of different pitches in the children, she said. This perception, in turn, is considered a prerequisite for further language development.The results show how important it is that parents use infant-directed speech for the further language development of their children. Infant-directed speech that varies greatly in pitch, emphasizes certain parts of words more clearly - and thus focuses the little ones' attention on what is being said - is considered appropriate for children.Mothers, in turn, who suffer from depressive moods, often use more monotonous, less infant-directed speech. "To ensure the proper development of young children, appropriate support is also needed for mothers who suffer from mild upsets that often do not yet require treatment," Schaadt says. That doesn't necessarily have to be organized intervention measures. "Sometimes it just takes the fathers to be more involved."The researchers investigated these relationships with the help of 46 mothers who reported different moods after giving birth.Their moods were measured using a standardized questionnaire typically used to diagnose postnatal upset. They also used electroencephalography (EEG), which helps to measure how well babies can distinguish speech sounds from one another.The so-called Mismatch Response is used for this purpose, in which a specific EEG signal shows how well the brain processes and distinguishes between different speech sounds. The researchers recorded this reaction in the babies at the ages of two and six months while they were presented with various syllables such as "ba," "ga" and "bu".( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Lifestyle :Researchers discover mother's mood can impact children's speech development

According to research, postnatal depressive mood can have an impact on children's development and speech. However, it was previously unknown how this impairment manifests itself in infants' early language development. ...