Thursday, June 25, 2009

Evolutionary Origins of Your Right and Left Brain

Filed under: Origins of language

The division of labor by the two cerebral hemispheres—once thought to be uniquely human—predates us by half a billion years. Speech, right-handedness, facial recognition and the processing of spatial relations can be traced to brain asymmetries in early vertebrates.

Full article: Scientific American




 
Saturday, June 13, 2009

Why can we talk? ‘Humanized’ mice speak volumes

Filed under: Origins of language

Mice carrying a “humanized version” of a gene believed to influence speech and language may not actually talk, but they nonetheless do have a lot to say about our evolutionary past, according to a report in the May 29th issue of the journal Cell, a Cell Press publication.

Full article: EurekAlert




 
Sunday, May 31, 2009

Human speech gene gives mouse a baritone squeak

Filed under: Origins of language

Mice can’t talk, but a transgenic rodent could shed light on the evolution of language. A team of German researchers has created mice with a human gene implicated in speech problems and thought to play a role in the evolution of language.

Full article: New Scientist



Tuesday, December 23, 2008

Monkey gossip hints at social origins of language

Filed under: Origins of language

Women may be fed up with being stereotyped as the chattier sex, but the cliche turns out to be true - in female-centric monkey groups at least. The gossipy nature of female macaques also adds weight to the theory that human language evolved to forge social bonds.

Full article: New Scientist



Friday, December 12, 2008

Orangutan’s spontaneous whistling opens new chapter in study of evolution of speech

Filed under: Origins of language

In a paper published this month in Primates, an international journal of primatology that provides a forum on all aspects of primates in relation to humans and other animals, Great Ape Trust scientist Dr. Serge Wich and his colleagues provide the first-ever documentation of a primate mimicking a sound from another species without being specifically trained to do so. Bonnie, a 30-year-old female orangutan living at the Smithsonian National Zoological Park in Washington, D.C., began whistling – a sound that is in a human’s, but not an orangutan’s, repertoire – after hearing an animal caretaker make the sound.

Full article: EurekAlert



Wednesday, November 19, 2008

Monkey gossip hints at social origins of language

Filed under: Origins of language

Women may be fed up with being stereotyped as the chattier sex, but the cliche turns out to be true - in female-centric monkey groups at least. The gossipy nature of female macaques also adds weight to the theory that human language evolved to forge social bonds.

Full article: New Scientist



Sunday, November 16, 2008

Scientists hope parrots will teach humans the secrets of language

Filed under: Origins of language

Scientists at a Scottish university are to analyse parrots, ravens and pigeons in a bid to discover how human language evolved, it was revealed yesterday.

Full article: scotsman.com



Saturday, November 8, 2008

Gorilla study gives clues to human language development

Filed under: Origins of language

A new University of Sussex study provides evidence that gorilla communication is linked to the left hemisphere of the brain - just as it is in humans.

Full article: Physorg



Sunday, September 14, 2008

Monkey Brains Hint at Evolutionary Root of Language Processing

Filed under: Origins of language

The use of vocalizations, such as grunts, songs or barks, is extremely common throughout the animal kingdom. Nevertheless, humans are the only species in which these vocalizations have attained the sophistication and communicative effectiveness of speech. How did our ancestors become the only speaking animals, some tens of thousands of years ago? Did this change happen abruptly, involving the sudden appearance of a new cerebral region or pattern of cerebral connections? Or did it happen through a more gradual evolutionary process, in which brain structures already present to some extent in other animals were put to a different and more complex use in the human brain?

A recent study in Nature Neuroscience yields critical new information, uncovering what could constitute the “missing link” between the brain of vocalizing nonhuman species and the human brain: evidence that a cerebral region specialized for processing voice, known to exist in the human brain, has a counterpart in the brain of rhesus macaques. …

Full article: Scientific American



Monday, July 14, 2008

Loud and Clear

Filed under: Origins of language

Fossil finds suggest an early origin for human speech — It may be time to rethink the stereotype of grunting, wordless Neandertals. The prehistoric humans may have been quite chatty — at least if the ear canals of their ancestors are any indication. …

Full article: Science News



Friday, April 18, 2008

Neanderthals speak out after 30,000 years

Filed under: Origins of language

Robert McCarthy, an anthropologist at Florida Atlantic University in Boca Raton has used new reconstructions of Neanderthal vocal tracts to simulate the voice. He says the ancient human’s speech lacked the “quantal vowel” sounds that underlie modern speech.

Read the full story from New Scientist



Sunday, February 17, 2008

MIT: No easy answers in evolution of human language

Filed under: Origins of language

The evolution of human speech was far more complex than is implied by some recent attempts to link it to a specific gene, says Robert Berwick, professor of computational linguistics at MIT. …

Read the full news article at EurekAlert



Saturday, October 27, 2007

Cave Speak: Did Neandertals Talk?

Filed under: Origins of language

German researchers have discovered Neandertals apparently had the human variant of a gene that is linked to speech and language. A team of scientists, primarily from the Max Planck Institute for Evolutionary Anthropology in Leipzig, made the discovery during efforts to reconstruct a full genome of the extinct hominid. …

Read the full news article at Scientific American



Early Apes Walked Upright 15 Million Years Earlier Than Previously Thought, Evolutionary Biologist Argues

Filed under: Origins of language

An extraordinary advance in human origins research reveals evidence of the emergence of the upright human body plan over 15 million years earlier than most experts have believed. More dramatically, the study confirms preliminary evidence that many early hominoid apes were most likely upright bipedal walkers sharing the basic body form of modern humans. …

Read the full news article at Science Daily



Friday, September 21, 2007

Gene Involved In Human Language Development Also Involved In Bat Echolocation

Filed under: Origins of language

When it comes to the FOXP2 gene, humans have had most to shout about. Discoveries that mutations in this gene lead to speech defects and that the gene underwent changes around the time language evolved both implicate FOXP2 in the evolution of human language. … A new study, undertaken by a joint of team of British and Chinese scientists, has found that this gene shows unparalleled variation in echolocating bats. …

Read the full article at ScienceDaily