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New research suggests that 3-month-old human babies can use lemur calls as teaching aids. The findings hint at a deep biological connection between language and learning. But not everyone agrees that the new work shows that primate sounds can stimulate a child's linguistic instinct. "This work tells us that sounds that are more like human language are more effective," says , a psychologist at the University of California, Davis. "What is more controversial is why they are effective." She says it's still unclear whether the primate sounds are stimulating some deep linguistic circuit in the brain or just getting the babies to look.

Babies only hours old are able to differentiate between sounds from their native language and a foreign language, scientists have discovered. The study indicates that babies begin absorbing language while still in the womb, earlier than previously thought.

Dr. Mitsuhiko Ota, a linguist in the University of Edinburgh Language Sciences department, was the lead researcher in a 2018 study (Ota, Davies-Jenkins, and Skarabela 2018) examining infant-directed speech, a.k.a. baby talk. Across languages, lexical items specific to infant-directed speech (i.e., 'baby-talk words') are characterized by three major features: 1. onomatopoeia incorporated into non-arbitrary, "highly iconic" words, e.g. "quack", "bow wow" 2. diminutives, e.g. "daddy", "tummy" 3. reduplication, e.g. "din din", "easy peasy" These three lexical characteristics may help infants discover the referential nature of words, identify word referents, and segment fluent speech into words. If so, the amount of lexical input containing these properties should predict infants' rate of vocabulary growth. To test this prediction, Ota's team tracked the vocabulary size in 47 English-learning infants from 9 to 21 months and examined whether vocabulary growth was related to measures of iconicity, diminutives, and reduplication in the lexical input at 9 months. The team's analyses showed that both diminutives and reduplication in the input were associated with vocabulary growth, although measures of iconicity were not. These results are consistent with the hypothesis that phonological properties typical of lexical input in infant-directed speech play a role in early vocabulary growth.

This article talked about how adults talk to babies and why we do it. When we talk to babies, we tend to raise our pitch a little and supposedly, it calms the baby down. They also talked about a research project where they recorded adults from different parts of the world, and noticed that those who come from western places raised their pitch the most, and in remote places didn't raise their pitch that much but everyone raised their pitch at least a little. The way we talk to babies is universal and we've evolved as humans to be able to communicate with infants.

The features of baby talk - softer tone, higher pitch, almost unintelligible vocabulary - are global. Researchers at Harvard's Music Lab documented over 1,500 recordings in 21 urban, rural and Indigenous communities - making their work possibly a first of its kind experiment. The article includes samples from different languages around the world. There are many reasons why baby talk might have evolved in humans and why it might serve beneficial purposes. Some theories suggest that the way we speak accentuates the vowels of the speech and helps babies learn speech. Other theories suggest that this kind of baby talk helps regulate the baby's emotions and helps structure the social interactions we have with babies, so it helps socialize them and control their behavior and mood. In prehistoric times, having ways to interact with babies and to care for them while still being able to keep your eyes up to look out for predators and use your voice to interact with babies, might have been an important reason why we may have evolved these kinds of behaviors.

An article discussing how when babies are in the womb and they listen to music, it builds a solid foundation for learning language later on.

An article explaining how language develops as a baby.

"'Even in late gestation, babies are doing what they'll be doing throughout infancy and childhood - learning about language,' said the lead author." This reminds me of the study that showed that babies' crying melodies reflect their native languages. (http://news.bbc.co.uk/2/hi/health/8346058.stm)

Babies who engage in musical play may have an easier time picking up language skills, a recent study says. U.S. researchers compared 9-month-old babies who played with toys and trucks to those who practiced banging out a rhythm during a series of play sessions.

A baby's first words usually have to do with their visual experiences. Familiar objects (e.g. shirts, the table, a spoon, bottle, etc.) can predict which words they'll learn first. This could suggest new ways to help treat autism and language deficits. There could be a correlation between visual processing problems and difficulty learning words. For example, children with autism have visual processing problems, which could explain why they have trouble communicating.

New research suggests it's how parents talk to their infants, not just how often, that makes a difference for language development. Infants whose mothers had shown "sensitive" responses--verbally replied to or imitated the babies' sounds--showed increased rates of consonant-vowel vocalizations, meaning that their babbling more closely resembled something like real syllables, paving the way for real words. The same babies were also more likely to direct their noises at their mothers, indicating that they were "speaking" to them rather than simply babbling for babbling's sake. "The infants were using vocalizations in a communicative way, in a sense, because they learned they are communicative," study author Julie Gros-Louis, a psychology professor at the University of Iowa, said in a statement. In other words, by acting like they understood what their babies were saying and responding accordingly, the mothers were helping to introduce the concept that voices, more than just instruments for making fun noises, could also be tools for social interaction.

"In our still-budding digital world, where public and private spheres cross-pollinate in unpredictable ways, perhaps it's not surprising that soon-to-be parents now routinely turn to Google to vet baby names. A quick search can help ensure that a child is not saddled with the name of a serial killer, pornography star or sex offender. ... But maybe common names are more prudent. A recent study by the online security firm AVG found that 92 percent of children under 2 in the United States have some kind of online presence, whether a tagged photo, sonogram image or Facebook page."

Teaching a baby to speak is more art than science. It begins with babble and almost like magic the child says mama and dada, then no, uh-oh, mine, especially mine. But sometimes children struggle to learn to speak. A team of linguists, computer scientists and psychologists in Britain think robots might help explain why that happens. They've created the world's first baby robot, DeeChee; white plastic skin and a smile of red lights and articulated hands that grab and gesture almost like an infant. Now, scientists hope that DeeChee's silicon brain will help explain what's going on in the minds of human babies, specifically, how sensitivity to particular sounds helps infants learn words.

Psychologists who analyzed video footage of a female chimpanzee, a female bonobo and a female human infant in a study to compare different types of gestures at comparable stages of communicative development found remarkable similarities among the three species. Gestures made by all three species included reaching, pointing with fingers or the head, and raising the arms to ask to be picked up. The researchers called "striking" the finding that the gestures of all three species were "predominantly communicative," Greenfield said. To be classified as communicative, a gesture had to include eye contact with the conversational partner, be accompanied by vocalization (non-speech sounds) or include a visible behavioral effort to elicit a response. The same standard was used for all three species. For all three, gestures were usually accompanied by one or more behavioral signs of an intention to communicate. At the beginning stage of communication development, gesture was the primary mode of communication for human infant, baby chimpanzee and baby bonobo. The child progressed much more rapidly in the development of symbols. Words began to dominate her communication in the second half of the study, while the two apes continued to rely predominantly on gesture. "This was the first indication of a distinctive human pathway to language," Greenfield said. All three species increased their use of symbols, as opposed to gestures, as they grew older, but this change was far more pronounced for the human child. The child's transition from gesture to symbol could be a developmental model of the evolutionary pathway to human language and thus evidence for the "gestural origins of human language," Greenfield said. While gesture may be the first step in language evolution, the psychologists also found evidence that the evolutionary pathway from gesture to human language included the "co-evolution of gestural and vocal communication." Most of the child's gestures were accompanied b

Researchers at the University of Washington and University of Connecticut examined thousands of 30-second snippets of verbal exchanges between parents and babies. They measured parents' use of a regular speaking voice versus an exaggerated, animated baby talk style, and whether speech occurred one-on-one between parent and child or in group settings. "What our analysis shows is that the prevalence of baby talk in one-on-one conversations with children is linked to better language development, both concurrent and future," said Patricia Kuhl, co-author and co-director of UW's Institute for Learning & Brain Sciences. The more parents exaggerated vowels -- for example "How are youuuuu?" -- and raised the pitch of their voices, the more the 1-year olds babbled, which is a forerunner of word production. Baby talk was most effective when a parent spoke with a child individually, without other adults or children around. "The fact that the infant's babbling itself plays a role in future language development shows how important the interchange between parent and child is," Kuhl said.

Words and Speech for babies

Can babies learn to read? While parents use DVDs and other media in an attempt to teach their infants to read, these tools don't instill reading skills in babies, a study by researchers at New York University's Steinhardt School of Culture, Education, and Human Development has found. In their study, which appears in the Journal of Educational Psychology, the researchers examined 117 infants, aged nine to 18 months, who were randomly assigned to treatment and control groups. Children in the treatment condition received a baby media product, which included DVDs, word and picture flashcards, and flip books to be used daily over a seven-month period; children in the control condition did not receive these materials from the researchers. Over the course of seven months, the researchers conducted a home visit, four laboratory visits, and monthly assessments of language development. To test children's emerging skills in the laboratory, the researchers examined the capacity to recognize letter names, letter sounds, vocabulary, words identified on sight, and comprehension. A combination of eye-tracking tasks and standardized measures were used to study outcomes at each stage of development. Using a state-of-the art eye-tracking technology, which follows even the slightest eye movements, the researchers were able to closely monitor how the infants distributed their attention and how they shifted their gaze from one location to another when shown specific words and phrases. No discernible differences were observed between the results of the experimental group vs. the control; yet parents of the infants in the experimental group perceived that their children were, in fact, acquiring words. :-)

A community-based program in Providence, Rhode Island aims to reverse the verbal achievement gap between affluent and low-income families. On average, by the time they are 3 years old, children in professional families have heard about 30 million more words than children from lower-income households. Through a yearlong series of home visits, Providence Talks aims to coach low-income parents to speak more, and differently, to their children.