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Just a few decades ago, many linguists thought the human brain had evolved a special module for language . It seemed plausible that our brains have some unique structure or system. After all, no animal can use language the way people can. However, in the 1990s, scientists began testing the language-module theory using "functional" MRI technology that let them watch the brain respond to words. And what they saw didn't look like a module, says Benjamin Bergen, a researcher at the University of California, San Diego, and author of the book _Louder Than Words_. "They found something totally surprising," Bergen says. "It's not just certain specific little regions in the brain, regions dedicated to language, that were lighting up. It was kind of a whole-brain type of process." The brain appears to be taking words, which are just arbitrary symbols, and translating them into things we can see or hear or do; language processing, rather than being a singular module, is "a highly distributed system" encompassing many areas of the brain. Our sensory experiences can also be applied to imagining novel concepts like "flying pigs". Our sensory capacities, ancestral features shared with our primate relatives, have been co-opted for more recent purposes, namely words and language. Bergen comments, "What evolution has done is to build a new machine, a capacity for language, something that nothing else in the known universe can do," he says. "And it's done so using the spare parts that it had lying around in the old primate brain."

People are capable of learning more than one language at a young age. Bilingual people use a different part of their brain. Bilingual people are also better at various different test than people who speak just one language.

Mental agility can be boosted by even a short period of learning a language, a study suggests. Tests carried out on students of all ages suggest that acquiring a new language improves a person's attention, after only a week of study. Researchers also found that these benefits could be maintained with regular practice.

Re " A Dreaded School Test in France Becomes a Tool of Integration " (Fontenay-sous-Bois Journal, May 12): Several factors contribute to the necessity of retaining the dreaded dictation ( dict ée) as an essential tool in teaching the French language.

Closing your eyes when trying to recall events increases the chances of accuracy, researchers at the University of Surrey suggest. Scientists tested people's ability to remember details of films showing fake crime scenes. They hope the studies will help witnesses recall details more accurately when questioned by police.

Our brains are set up to do two things at once, but not three, a French team reports in the journal Science. Their experiment examined an area of the brain involved in goals and rewards and tested people's abilities to accomplish up to three mental tasks at the same time. When volunteers were doing just one task, there was activity in goal-oriented areas of both frontal lobes, suggesting that the two sides of the brain were working together to get the job done. But when people took on a second task, the lobes divided their responsibilities. Since the brain has only two frontal lobes, researchers surmised there might be a limit to the number of goals and rewards it can handle. Indeed, when people started a third task, one of the original goals disappeared from their brains. Also people slowed down and made many more mistakes.

Excellent study. "While it has long been recognized that certain areas in the brain's left hemisphere enable us to understand and produce language, scientists are still figuring out exactly how those areas divvy up the highly complex processes necessary to comprehend and produce language. ... Two brain areas called Broca's region and Wernicke's region serve as the main computing hubs underlying language processing, with dense bundles of nerve fibers linking the two ... Working with patients suffering from language impairments because of a variety of neurodegenerative diseases, Wilsons' team used brain imaging and language tests to disentangle the roles played by the two pathways. ... The study marks the first time it has been shown that upper and lower tracts play distinct functional roles in language processing."

While the left hemisphere of the brain is where the processing and understanding of language is, different sections of the brain control different parts of language. Two separate areas of the brain control the ability to remember and understand specific words, and the other controls how we construct sentences and make sense of them. If one of these sections is damaged, the other can still work properly, so it is possible to be able to remember words and what they mean but not know how to create sentences.

"A small band of linguists, engineers and computer scientists, among others, are busy training computers to recognize hallmarks of what they call emotional speech - talk that reflects deception, anger, friendliness and even flirtation. ... Algorithms developed by Dr. Hirschberg and colleagues have been able to spot a liar 70 percent of the time in test situations, while people confronted with the same evidence had only 57 percent accuracy ... His lab has also found ways to use vocal cues to spot inebriation, though it hasn't yet had luck in making its computers detect humor - a hard task for the machines, he said."

Stephen Wilson, an associate professor in the University of Arizona's Department of Speech, Language, and Hearing Sciences, studied the upper and lower white-matter connecting pathways between Broca's region and Wernicke's region: the two areas of the brain that are hubs for language processing. Brain imaging and language tests were used to examine patients suffering from language impairments caused by neurodegeneration. Wilson discovered the pathways have distinct functions. Damage to the lower pathway affects lexicon and semantics: "You forget the name of things, you forget the meaning of words. But surprisingly, you're extremely good at constructing sentences." Conversely, damage to the upper pathway creates problems in syntactic processing and figuring out the relationship between words in a sentence.

Language isn't found in just one part of the brain but rather in separate individual parts that are responsible for different aspects of language. Neurodegentive diseases that target specific areas of the brain affecting language, only have a partial effect on the patients ability to understand and communicate.

"Two vital parts of mentally organizing the world are classification, or the understanding that similar things belong in the same category; and induction, an educated guess about a thing's properties if it's in a certain category. ... 'For the last 30 to 40 years it has been believed that even for very young children, labels are category markers, as they are for adults,' explains psychologist Vladimir M. Sloutsky ... To test their hypothesis, the psychologists showed pictures of two imaginary creatures to preschoolers and college undergraduates. Both animals had a body, hands, feet, antennae, and a head. ... The difference arose when the head was a jalet's but [the] label was "flurp," or vice-versa. Then, most of the adults went with the label (we accept that a dolphin is a mammal, even though it looks and swims like a fish). The children relied on the head for identification. Regardless of its name, a thing with a jalet's head is a jalet." Link to the study (PDF): http://cogdev.cog.ohio-state.edu/Papers/2011/SD-VS-PsychScience.pdf

"Preschool children who hear their parents describe the size and shape of objects and then use those words themselves perform on average 23 percent better on spatial skill tests later on."

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. :-)

According to research led by V. S. Ramachandran, director of the Center for Brain and Cognition at the University of California, San Diego, a region of the brain known as the angular gyrus is probably at least partly responsible for the human ability to understand metaphor. Ramachandran and colleagues tested four right-handed patients with damage to the left angular gyrus. Fluent in English and otherwise intelligent and mentally lucid, the patients showed gross deficits in comprehending such common proverbs as "the grass is always greener on the other side" and "an empty vessel makes more noise." Asked to explain the sayings, the patients tended give responses that were literal. The metaphorical meaning escaped them almost entirely.

This study was conducted in a repeated-measured design; therefore, a paired sample t-test was used for the analysis. An alpha level of .05 was used for the analysis. The independent variable was the type of music played at two different levels of intensity: high intensity and low intensity.

New Jersey now requires it's students to learn a foreign language. They are starting instruction at a younger age, in the hopes of having it be more effective. The state is basing it's decision on studies that show acquiring more than one language boosts brain function in children, and leads to success in standardized tests. They are also hoping to end a shortage of bilinguals needed in the workforce.

UCLA researchers Oppenheimer and Mueller wondered if there was something about paper and the act of writing that explained this phenomenon, so they conducted an experiment. They asked about 50 students to attend a lecture. Half took notes on laptops and half with pen and paper. Both groups were then given a comprehension test. It wasn't even close. The students who used paper scored significantly higher than those who used laptops. Mueller attributes this unexpected finding - published in the journal, Psychological Science - to the fact that the "analog" note takers were forced to synthesize rather than merely transcribe. It's a phenomenon known as "desirable difficulty." "Desirable difficulty is some small roadblock that is in your path that actually improves your understanding of a topic," she explains.

Examining the results and methodology of a large Whorfian study (17 languages), which tested differences if there are differences in cognition between speakers of verb-frame languages (like Spanish, if the "Path is characteristically represented in the main verb or verb root of a sentence") and satellite-frame languages (like English, if the path is "characteristically represented in the satellite and/or preposition"). Important conclusion regarding study methodology: "Strong claims regarding the (in)validity of the Whorfian hypothesis in the encoding of motion events cannot be made on the basis of a limited number of languages or a restricted range of manner and path contrasts." They could have reached opposite conclusions if they only compared certain language pairs.  This is made in contrast with studies by, e.g., Boroditsky, which had relatively small sample sizes.

"An array of electrodes receiving input from a non-tactile information source (a camera, for instance) applies small, controlled, painless currents...to the skin at precise locations according to an encoded pattern. The encoding of the electrical pattern essentially attempts to mimic the input that would normally be received by the non-functioning sense. ... When the encoded pulses are applied to the skin, the skin is actually receiving image data." "After training in laboratory tests, blind subjects were able to perceive visual traits like looming, depth, perspective, size and shape."