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Scientists are reporting in the journal Science that they have identified specialized brain cells that help us understand what a speaker really means. These cells do this by keeping track of changes in the pitch of the voice. "We found that there were groups of neurons that were specialized and dedicated just for the processing of pitch," says Dr. Eddie Chang, a professor of neurological surgery at the University of California, San Francisco. Chang says these neurons allow the brain to detect "the melody of speech," or intonation, while other specialized brain cells identify vowels and consonants. "Intonation is about how we say things," Chang says. "It's important because we can change the meaning, even - without actually changing the words themselves." The identification of specialized cells that track intonation shows just how much importance the human brain assigns to hearing, says Nina Kraus, a neurobiologist who runs the Auditory Neuroscience Laboratory at Northwestern University. "Processing sound is one of the most complex jobs that we ask our brain to do," Kraus says. And it's a skill that some brains learn better than others, she says. Apparently, musicians, according to a study conducted by Kraus, are better than non-musicians at recognizing the subtle tonal changes found in Mandarin Chinese. On the other hand, recognizing intonation is a skill that's often impaired in people with autism, Kraus says. "A typically developing child will process those pitch contours very precisely," Kraus says. "But some kids on the autism spectrum don't. They understand the words you are saying, but they are not understanding how you mean it." The new study suggests that may be because the brain cells that usually keep track of pitch aren't working the way they should.

A spoken language is more than just words and sounds. Speakers use changes in pitch and rhythm, known as prosody, to provide emphasis, show emotion, and otherwise add meaning to what they say. But a language does not need to be spoken to have prosody: sign languages, such as American Sign Language (ASL), use movements, pauses and facial expressions to achieve the same goals. In a study appearing in the September 2015 issue of Language, three linguists look at intonation (a key part of prosody) in ASL and find that native ASL signers learn intonation in much the same way that users of spoken languages do. Children learning ASL acquired prosodic features in three stages of "appearance, reorganization, and mastery": accurately replicating their use in simpler contexts, attempting unsuccessfully at first to use them in more challenging contexts, then using them accurately in all contexts as they fully learn the rules of prosody. Previous research has shown that native learners of spoken languages acquire intonation following a similar pattern.

In the mid-1970s, sociolinguist John Gumperz was summoned to Heathrow International Airport to help make sense of an odd culture clash. The new hires in Heathrow's employee cafeteria (mostly women from India and Pakistan) and some of the baggage handlers at the airport - had grown to openly resent each other. Why? One word: gravy. British women cafeteria employees said the word with a rising intonation - gravy? - that was understood as "Would you like some gravy?" The Indian and Pakistani women, however, said it with falling intonation - gravy. That came across as, "This is gravy; take it or leave it." A mere surface intonational difference, yet the cause of major social misunderstanding.

the micro-nuances of their speech patterns, and how voters, and viewers, hear them - can also provide a fascinating window into how we perceive authority and who occupies it. Women and men tend to have different speech patterns, linguists will tell you. Women, especially young women, tend to have more versatile intonation. They place more emphasis on certain words; they are playful with language and have shorter and thinner vocal cords, which produce a higher pitch. That isn't absolute, nor is it necessarily a bad thing - unless, of course, you are a person with a higher pitch trying to present yourself with some kind of authority. A 2012 study published in PLoS ONE found that both men and women prefer male and female leaders who have lower-pitched voices, while a 2015 report in a journal called Political Psychology determined, in a sample of U.S. adults, that Americans prefer political candidates with lower voices as well. Lower voices do carry better, so that's not entirely without basis, said the linguist Deborah Tannen.

Babies first start learning language by listening to the rhythm and intonations of speech. They specifically listen to high pitches versus low ones and the loudness of syllables in speech. Before a baby is even born they already begin developing language. When in the womb, the intonation patterns of the mother are heard in the womb. "Baby talk" used by people to infants is a crucial part of an infants learning.Parents often exaggerate these aspects of language, which helps a baby to acquire it. Research shows babies prefer listening to this exaggerated, singsong way of talking compared to regular adult talk.

Like a human's brain, a dog's brain responds to the meaning of a word and how the word is said. And like with a human's brain, the dog's left hemisphere reacts to meaning and the right hemisphere reacts to intonation. In the study, words were said to dogs in positive and neutral tones, but only positive words spoken in a positive tone prompted strong activity in the brain's reward center. This study suggested that non-primates could process meaning and emotion long before humans could talk.

How different aspects of speech, such as intonation and dynamics, affect how we perceive other people's personalities

This page talks about how music and language are very similar and have many overlapping similarities, not identities, such as intonation, and idiom.

Amusia is a deficit in musical memory, recognition, and in pitch processing that people can be born with or acquire through brain damage. Some people may think of themselves as being "tone-deaf", but most of these "bad" singers are just that. People with amusia are so unable to hear tones that they even struggle to differentiate between questions and statements when spoken. Language, like music, uses sound to convey meaning; be it a story, or simply an emotion. In fact, music and spoken language use many of the same structural elements: pitch, duration, intensity and melodic contour, to name a few. Melodic contour is the pattern in which pitch changes from high to low over time. This contouring of pitch is often used to express emotion in music. The emotional effect of contouring is appreciated across many cultures and across many age groups. In speech, melodic contour is created by intonation, which allows us to place emphasis upon certain words and distinguish the purpose of the sentence; e.g. whether it is a question, statement or command. These comparisons provide evidence for the overlap of brain areas and mechanisms that underlie speech and music processing. In addition, the storing of sound patterns in short-term memory is also overlapping for both language and music.

Stephen Porges, psychiatry professor and Distinguished University Scientist at Indiana University, where he directs the Trauma Research Center within the Kinsey Institute, speaks about the importance of safety in relationships. Porges' Polyvagal Theory describes how our autonomic nervous system mediates safety, trust, and intimacy through a subsystem he calls the social engagement system. Our brain is constantly detecting through our senses whether we are in a situation that is safe, dangerous, or life threatening. People's autonomic nervous system are designed to perceive threat: a protective, defensive survival mechanism, but a response that can also get us into trouble if we sense that our safety is at risk, causing us to misread the situation. However, humans also have a mammalian mechanism that mediates those gut-level ANS responses. This social engagement system enables us to interpret linguistic, facial, tonal, intonation, and gestural cues, and the intentionality of others. When our body and mind experience safety, our social engagement system enables us to collaborate, listen, empathize, and connect, as well as be creative, innovative, and bold in our thinking and ideas. This has positive benefits for our relationships as well as our lives in general. The takeaways: 1. Safety is paramount in crucial conversations and conflict-resolution. 2. Learning to deploy cues that display love, trust, and engagement in the midst of conflict can help disarm defensive, threat response mechanisms in other people, help restore safety in our social interactions, and reaffirm bonds.

This article talks about the phenomenon of linguistic accommodation. This is the process of copying the vocabulary, accent, intonation, and other speech patterns of ones conversation partner.