Skip to main content

Home/ Words R Us/ Group items tagged humans

Rss Feed Group items tagged

Lara Cowell

Broca's and Wernicke's Areas: Human Uniqueness Compared to "Great Apes": Relative Diff... - 0 views

  •  
    Other, non-human primates have Broca's and Wernicke's areas in their brains, as do humans. In both species, the Broca's region represents non-linguistic hand and mouth movements. Evidence also suggests that both species may have mirror neurons in this region that are involved in understanding the actions and intentions of others. In both macaques and humans, this region is likely involved in producing orofacial expressions and in understanding the intentions behind orofacial expressions of others. In humans, it has evolved an additional communicative function, namely speech production. Interestingly however, it does not appear to be involved in monkey vocalizations, which are instead mediated by limbic and brainstem areas. In both species, the region represents non-linguistic hand and mouth movements. Evidence also suggests that both species may have mirror neurons in this region that are involved in understanding the actions and intentions of others. In both macaques and humans, this region is likely involved in producing orofacial expressions and in understanding the intentions behind orofacial expressions of others. In humans, it has evolved an additional communicative function, namely speech production. However, unlike in humans, Broca's area does not appear to be involved in monkey vocalizations, which are instead mediated by limbic and brainstem areas. Regarding Wernicke's area, which is responsible for language comprehension in humans, evidence suggests that the left superior temporal gyrus is specialized for processing species-specific calls in macaques, just as it is specialized for speech comprehension in humans.
Lara Cowell

How similar are the gestures of apes and human infants? More than you might suspect - 2 views

  •  
    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
Dane Kawano

Steven Pinker: Linguistics as a Window to Understanding the Brain - YouTube - 2 views

shared by Dane Kawano on 04 Nov 12 - No Cached
  •  
    Copied from Youtube description: "How did humans acquire language? In this lecture, best-selling author Steven Pinker introduces you to linguistics, the evolution of spoken language, and the debate over the existence of an innate universal grammar. He also explores why language is such a fundamental part of social relationships, human biology, and human evolution. Finally, Pinker touches on the wide variety of applications for linguistics, from improving how we teach reading and writing to how we interpret law, politics, and literature."
Ryan Catalani

Interview: Seven questions for K. David Harrison | The Economist - 0 views

  • A language hotspot is a contiguous region which has, first of all, a very high level of language diversity. Secondly, it has high levels of language endangerment. Thirdly, it has relatively low levels of scientific documentation (recordings, dictionaries, grammars, etc.). We've identified two dozen hotspots to date
  • The hotspots model allows us to visualise the complex global distribution of language diversity, to focus research on ares of greatest urgency, and also to predict where we might encounter languages not yet known to science.
  • The human knowledge base is eroding as we lose languages, exacerbated by the fact that most of them have never been written down or recorded
  • ...9 more annotations...
  • Each language is a unique expression of human creativity.
  • there are no exact matches for words or expressions across languages.
  • In Tuvan, in order to say "go" you must first know the direction of the current in the nearby river and your own trajectory relative to it. Tuvan "go" verbs therefore index the landscape in a way that cannot survive displacement or translation.
  • People of all ages, but especially children, can easily be bilingual. New research shows bilingualism strengthens the brain, by building up what psychologists call the cognitive reserve.
  • I and many fellow linguists would estimate that we only have a detailed scientific description of something like 10% to 15% of the world's languages, and for 85% we have no real documentation at all. Thus it seems premature to begin constructing grand theories of universal grammar. If we want to understand universals, we must first know the particulars.
  • Their knowledge of ice, their words for it, and the hunting skills and lifeways are all receding in tandem with the Yupik language itself.
  • If we can learn to value the intellectual diversity that is fostered by linguistic variety, we can all help to ensure its survival.
  • I'll close with the inspiring example of Matukar, a language spoken in a small village in Papua New Guinea. Down to about 600 speakers (out of a tribal group of 900+), Matukar is under immense pressure from the national language Tok Pisin and from English.
  • Working with me under the National Geographic Enduring Voices Project, he devised a written form for what had been until 2010 a purely oral language. Rudolf and his mother Kadagoi Raward patiently recorded thousands of words in their language.
  •  
    "The human knowledge base is eroding as we lose languages, exacerbated by the fact that most of them have never been written down or recorded... Each language is a unique expression of human creativity... it seems premature to begin constructing grand theories of universal grammar...If we can learn to value the intellectual diversity that is fostered by linguistic variety, we can all help to ensure its survival."
Lisa Stewart

Niche Construction - 1 views

  • An important insight from NCT is that acquired characters play an evolutionary role, through transforming selective environments. This is particularly relevant to human evolution, where our species appears to have engaged in extensive environmental modification through cultural practices. Such cultural practices are typicaly not themselves biological adaptations (rather, they are the adaptive product of those much more general adaptations, such as the ability to learn, particularily from others, to teach, to use language, and so forth, that underlie human culture) and hence, cannot acurately be described as extended phenotypes (1). Mathematical models reveal that niche construction due to human cultural processes can be even more potent than gene-based niche construction, and establish that cultural niche construction can modify selection on human genes and drive evolutionary events (2-4). There is now little doubt that human cultural niche construction has co-directed human evolution in this manner (5)
Lara Cowell

Is Language Unique to Humans? - 1 views

  •  
    Primates, birds, cetaceans, dogs and other species have proven able, through extensive training, to understand human words and simple sentences. And as Ed Yong explained, in some exceptional cases, such as Kanzi and Alex, they've even been able to engage in two-way communication with humans. However, language is more than a process through which meaning is attached to words or short sentences. Language might be described as the ability to take a finite set of elements (such as words), and using a set of rules (grammar and syntax) to create infinite combinations, each of which is comprehensible. In addition, as far as we can tell, humans are the only species who can create and comprehend understandable silliness, like "Colourless green ideas sleep furiously".
Ryan Catalani

Futurity.org - Human speech is music to our ears - 7 views

  •  
    "Humans may love music, biologically speaking, because it mimics the sounds of our own voices. Neuroscientists say the use of 12 tone intervals in the music of many human cultures is rooted in the physics of how our vocal anatomy produces speech and conveys emotion." The study: http://purveslab.net/publications/bowling_purves_2009.pdf
Lara Cowell

Babies may practice crying months before they're born - 0 views

  •  
    When a human baby is born, its first cry is a normal sign of good health. Having never taken a breath before, the baby signals its first inhalation and exhalation-in the form of a screech. How do babies know to create a sound they've never made before? And is their first yelp truly the start of speech development? As it turns out, human babies may be practicing how to cry long before they ever make a sound. That is, if they're anything like marmosets, humans' primate cousins. A study of marmosets by Daniel Takahashi, a co-author of the study and an animal behaviorist at the Brain Institute at the Federal University of Rio Grande do Norte in Brazil. shows fetal monkeys practicing crying in the womb. Takahashi notes, "marmosets are monkeys that we know vocalize a lot, and they share a lot of features with humans." For instance, both male and female parents raise their offspring together, and unlike other primates, marmoset babies are relatively helpless when they're born, like human infants. Takahashi says the central finding will help illuminate when speech development begins, and that studying pre-birth-rather than the moment of birth-may help identify speech or motor development problems earlier. "There are a lot of things going on in the womb that might be relevant to what's going on afterwards," he says.
Lisa Stewart

A whale with a distinctly human-like voice - 4 views

  • For the first time, researchers have been able to show by acoustic analysis that whales—or at least one very special white whale—can imitate the voices of humans.
  • That's all the more remarkable because whales make sounds via their nasal tract, not in the larynx as humans do. To make those human-like sounds, NOC had to vary the pressure in his nasal tract while making other muscular adjustments and inflating the vestibular sac in his blowhole, the researchers found. In other words, it wasn't easy.
  •  
    You can actually listen to an audio recording of this white whale--it sounds like a human talking through a kazoo....Amazing! But he died five years ago...I'm bummed that they didn't study it more.
Parker Tuttle

A Human Language Gene Changes the Sound of Mouse Squeaks - NYTimes.com - 5 views

  • creation of a mouse with a human gene for languag
  • genetically engineered a strain of mice whose FOXP2 gene has been swapped out for the human version
  • humanized baby mice, when isolated, made whistles that had a slightly lower pitch, among other differences
  • ...1 more annotation...
  • gene does seem to have a great effect on pathways of neural development in mice
  •  
    The importance of FOXP2, and how it affects language.
  •  
    People have a deep desire to communicate with animals, as is evident from the way they converse with their dogs, enjoy myths about talking animals or devote lifetimes to teaching chimpanzees how to speak. A delicate, if tiny, step has now been taken toward the real thing: the creation of a mouse with a human gene for language.
Lara Cowell

Facebook researchers design Stickers to mimic human emotions - 2 views

  •  
    Emoticons - representations of facial expressions using colons, dashes, parentheses and other text symbols - originated in the days of the telegraph as a substitute for the facial expressions, hand gestures and vocal clues for different emotions that humans pick up during in-person meetings. Because printed words alone can't always convey the full emotional meaning of a conversation, emoticons have evolved into a separate language, especially with the world increasingly relying on texting, tweeting and e-mail. Called Stickers, Facebook's emoticons were born out of more than two years of research into the compassion of Facebook members, then fine-tuned by scientists specializing in human facial expressions. And while they were inspired by evolutionist Charles Darwin's studies in the mid-19th century, Facebook believes they could be a vital part of human-to-human relationships in the digital 21st century.
Lisa Stewart

Early Human Evolution:  Early Transitional Humans - 0 views

  • Early transitional humans had brains that on average were about 35% larger than those of Australopithecus africanus
  • chimpanzees 300-500 australopithecines 390-545 early transitional humans 509-752 modern humans 900-1880
daralynwen19

Yes, We Can Communicate with Animals - Scientific American Blog Network - 3 views

  •  
    This article discusses human communication with other animals. It states that animals won't be able to remember words like "bacteria" or "economy" because they don't have the brain capacity to understand those words. However, if you tell a dog to "sit", the dog is able to differentiate the sound of that particular word from other verbal signals, and can carry out the action. This is how learning words works. The article also discusses IQ and explains that human brains have been genetically modified for communication, and the size of our brains is also much bigger than expected in animals of the same size.
  •  
    The article also underscores a quality that differentiates human language from other animal communication: grammatical orderliness. Human languages have word categories such as nouns, verbs, adjectives, adverbs, prepositions, and so on. We can modify word order and word endings to create different tenses so that we can describe events from the past or imaginary ones from the future. This grammatical complexity emerges quite early in child development, beginning in the second year of life and exploding with full force in the third year of life. No nonhuman animal to date has demonstrated the ability to construct sentences with the level of grammatical complexity typical of a three-year-old human child.
Arthur Johnston

Can any animals talk and use language like humans? - 4 views

  •  
    This article gives a nice overview of how different animals can utilize vocalizations in meaningful ways (vocal mimicry), a behavior that's the precursor to human speech and language.
  •  
    In April 2010, Adriano Lameira set up his video camera in front of an enclosure at Cologne Zoo in Germany. Inside was an orangutan called Tilda. There was a rumour that Tilda could whistle like a human, and Lameira, of Amsterdam University in the Netherlands, was keen to capture it on camera. The results of this experiment were shocking and led to the question "can animals talk like humans?"
kpick21

Human languages vs. Programming languages - 0 views

  •  
    Similarities: Both are used to communicate, both form language families, both have semantics and syntax Differences: Human language used to communicate between humans, programming languages used to communicate between human and computer, no morphology in programming languages, No synonyms, cultural significance, metaphors, analogies, in programming languages, no room for interpretation in programming languages
Lara Cowell

Is language the ultimate frontier of AI research? | Stanford School of Engineering - 0 views

  •  
    Learning the intricacies of human languages is hard even for human children and non-native speakers - but it's particularly difficult for AI. Scientists have already taught computers how to do simple tasks, like translating one language to another or searching for keywords. Artificial intelligence has gotten better at solving these narrow problems. But now scientists are tackling harder problems, like how to build AI algorithms that can piece together bits of information to give a coherent answer for more complicated, nuanced questions. "Language is the ultimate frontier of AI research because you can express any thought or idea in language," states Stanford computer science professor Yoav Shoham. "It's as rich as human thinking." For Shoham, the excitement about artificial intelligence lies not only in what it can do - but also in what it can't. "It's not just mimicking the human brain in silicon, but asking what traits are so innately human that we don't think we can emulate them on a computer," Shoham said. "Our creativity, fairness, emotions, all the stuff we take for granted - machines can't even come close."
michaelviola17

Why has the human brain evolved so much more than any other animals? - 0 views

  •  
    It's misleading to say that the human brain evolved "more". Every brain is specialized to its own niche. We declare the human brain to be best because that's the one we have.
Lara Cowell

Language and Genetics - 0 views

  •  
    Recent advances in our understanding of the genetic basis of human cognition (thinking) have enabled scientists at the Max Planck Institutes for Psycholinguistics, Evolutionary Anthropology, and Human Cognitive and Brain Sciences. to better understand 3 areas of language: 1. Language processing: The human genome directs the organization of the human brain and some peripheral organs that are prerequisites for the language system, and is probably responsible for the significant differences in language skills between individuals. At the extremes are people with extraordinary gifts for learning many languages and undertaking simultaneous interpretation, and people with severe congenital speech disorders. 2. Language and populations: Genetic methods have revolutionized research into many aspects of languages, including the tracing of their origins. 3. Structural differences: While languages are not inborn, certain genetic predispositions in a genetically similar population may favour the emergence of languages with particular structural characteristics - an example thereof is the distinction between languages that are tonal (such as Chinese) and non-tonal (such as German).
Lara Cowell

The Human Voice May Not Spark Pleasure in Children With Autism - 4 views

  •  
    The human voice appears to trigger pleasure circuits in the brains of typical kids, but not children with autism, a Stanford University team reports. The finding could explain why many children with autism seem indifferent to spoken words. The Stanford team used functional MRI to compare the brains of 20 children who had autism spectrum disorders and 19 typical kids. In typical kids there was a strong connection between areas that respond to the human voice and areas that release the feel-good chemical dopamine, but that connection was reduced in autistic children. Connections between voice areas and areas involved in emotion-related learning also were weaker, creating greater communication difficulties. The new study's suggestion that motivation is the problem could explain why speech often comes late to children with autism even though the brain circuit involved in processing spoken words seems to function normally; the reward circuitry isn't working the way it does in typical children.
lpark15

The Development of Language: A Critical Period in Humans - Neuroscience - NCBI Bookshelf - 0 views

  •  
    This article talks about a critical period in the human life for the development of language.
1 - 20 of 302 Next › Last »
Showing 20 items per page