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Previously, genetic analysis had indicated that the ancestors of Native Americans left Siberia to migrate across ancient Beringia (the strip of land that once connected Asia and what's now Alaska) about 25,000 years ago, but the earliest evidence of human habitation on North America dates to 15,000 years ago. With ice covering much of Alaska, the ancestors of Native Americans might've lived in Beringia for about 10,000 years before moving on. Now linguistic evidence may help support that theory. A pair of linguistics researchers, Mark Sicoli and Gary Holton, recently analyzed languages from North American Na-Dene family (traditionally spoken in Alaska, Canada and parts of the present-day U.S.) and the Asian Yeneseian family (spoken thousands of miles away, in central Siberia), using similarities and differences between the languages to construct a language family tree. As they note in an article published today in PLOS ONE, they found that the two language families are indeed related-and both appear to descend from an ancestral language that can be traced to the Beringia region. Both Siberia and North America, it seems, were settled by the descendants of a community that lived in Beringia for some time. In other words, Sicoli says, "this makes it look like Beringia wasn't simply a bridge, but actually a homeland-a refuge, where people could build a life."

A 2013 joint study, conducted by the Montreal Neurological Institute and Hospital -- The Neuro at McGill University and Oxford University, concludes that the pattern of brain development is similar if you learn one or two languages from birth. However, learning a second language later on in childhood, after gaining proficiency in the first (native) language, does in fact, modify the brain's structure, specifically the brain's inferior frontal cortex. The left inferior frontal cortex became thicker and the right inferior frontal cortex became thinner. The cortex is a multi-layered mass of neurons that plays a major role in cognitive functions such as thought, language, consciousness and memory. The study suggests that the task of acquiring a second language after infancy stimulates new neural growth and connections among neurons in ways seen in acquiring complex motor skills such as juggling. The study's authors speculate that the difficulty that some people have in learning a second language later in life could be explained at the structural level. "The later in childhood that the second language is acquired, the greater are the changes in the inferior frontal cortex," said Dr. Denise Klein, researcher in The Neuro's Cognitive Neuroscience Unit and a lead author on the paper published in the journal Brain and Language. "Our results provide structural evidence that age of acquisition is crucial in laying down the structure for language learning."

Neuroimaging studies suggest that sign languages are complex linguistic systems processed much like spoken languages, even though they're gestural/visual, not oral. Wernicke's area activates when perceiving sign language; Broca's when producing sign language. In deaf people, lesions in left hemisphere "speech centres" like Broca's and Wernicke's areas produced significantly more sign errors on naming, repetition and sentence-comprehension tasks than signers with damaged right hemispheres.

This article first begins by talking about how in times of polarization and partisan conflict people turn to tired slogans, buzzwords, and recycled thoughts. It argues, I think correctly, that when these "second-hand thoughts" take the place of our actual ones, much is lost. Thoughtful debate and discussion becomes a mud-slinging fest where each side launches their own rhetorical salvos and is met with opposing ones in return. Later, the article breaks down the purpose of language into two purposes. The referential function helps describe concrete objects--the article uses an apple as an example. Everyone understands that, literally, an apple is a fruit. The metalingual function helps to describe the meanings behind the metaphors, cultural connotations, and etymology that accompany a word. In this case, apple could hint at the original sin of Eve or the association with teachers and their pupils. It points out that when debate turns metalingual, people have different associations so, in effect, they argue using words that carry different meanings. Thus, the overuse of metalingual language can actually obscure the truth instead of uncovering it.

When speaking, bilinguals mix the two languages to form sentences, because in their brains, there is no distinction between the two languages. In this study, the brains of Korean/English bilinguals were observed. The study affirmed that language switching is natural for bilinguals because of the use of their left anterior temporal lobe.

Adopting the same gestures, posture or tone can enhance bonding and help with networking or negotiating. mirroring can help you create powerful connections with others. This behavior, often called "the chameleon effect," often causes others to like and trust you more. Professional networkers, negotiators and salespeople say they use mirroring to help them engage more deeply in a conversation and understand the person they're talking with. Retail salespeople who were told to mimic the nonverbal and verbal behavior of customers sold more products and left customers with a more positive opinion of the store, according to a 2011 study of 129 customers by French researchers. In another study, published in 2008 in the Journal of Experimental Social Psychology, 62 students were assigned to negotiate with other students. Those who mirrored others' posture and speech reached a settlement 67% of the time, while those who didn't reached a settlement 12.5% of the time.

Mark Zuckerberg, the CEO of Meta, which owns Facebook, wants to break language barriers across the globe using artificial intelligence (AI). Meta announced an ambitious AI driven project, which will be key to building its Metaverse. The company said that it is building a universal speech translator, along with an AI powered virtual assistant. CEO Mark Zuckerberg, in an online presentation, stated, "The ability to communicate with anyone in any language - that's a superpower people have dreamed of forever, and AI is going to deliver that within our lifetime.For people who understand languages like English, Mandarin, or Spanish, it may seem like today's apps and web tools already provide the translation technology we need. Nearly half the world's population can't access online content in their preferred language today. No Language Left Behind is a single system capable of translating between all written languages. "We're also working on Universal Speech Translator, an AI system that provides instantaneous speech-to-speech translation across all languages, even those that are mostly spoken," said the company in a blog.