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Study examined the medical records of 648 Alzheimer's patients in Hyderabad and found that bilinguals developed dementia four to five years later than monolinguals. 

This article states that even brief, early exposure to a language influences how the brain processes sounds from a second language later in life- even when the first language learned is no longer spoken

This study followed 1,000 people and compared their test results as children vs. at age 50. The kids who could name objects/animals in pictures, form a sentence, and share experiences more quickly than other children tended to show higher IQ's later on in life.

We use both sides of our brain for speech, New York University researchers have discovered: a finding that alters previous conceptions about neurological activity. Many in the scientific community have posited that both speech and language are lateralized -- that is, we use only one side of our brains for speech, which involves listening and speaking, and language, which involves constructing and understanding sentences. However, the conclusions pertaining to speech generally stem from studies that rely on indirect measurements of brain activity, raising questions about characterizing speech as lateralized. In their examination, the researchers tested the parts of the brain that were used during speech. Here, the study's subjects were asked to repeat two "non-words" -- "kig" and "pob." Using non-words as a prompt to gauge neurological activity, the researchers were able to isolate speech from language. An analysis of brain activity as patients engaged in speech tasks showed that both sides of the brain were used -- that is, speech is, in fact, bi-lateral. The results also offer insights into addressing speech-related inhibitions caused by stroke or injury and lay the groundwork for better rehabilitation methods.

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."

In 1954, psychologist James Olds and his team were working in a laboratory at McGill University, studying how rats learned. They would stick an electrode in a rat's brain and, whenever the rat went to a particular corner of its cage, would give it a small shock and note the reaction. One day they unknowingly inserted the probe in the wrong place, and when Olds tested the rat, it kept returning over and over to the corner where it received the shock. He eventually discovered that if the probe was put in the brain's lateral hypothalamus and the rats were allowed to press a lever and stimulate their own electrodes, they would press until they collapsed.

This month, the journal Pediatrics published a study that used functional magnetic resonance imaging to study brain activity in 3-to 5-year-old children as they listened to age-appropriate stories. The researchers found differences in brain activation according to how much the children had been read to at home. Children whose parents reported more reading at home and more books in the home showed significantly greater activation of brain areas in a region of the left hemisphere called the parietal-temporal-occipital association cortex. This brain area is "a watershed region, all about multisensory integration, integrating sound and then visual stimulation," said the lead author, Dr. John S. Hutton, a clinical research fellow at Cincinnati Children's Hospital Medical Center. This region of the brain is known to be very active when older children read to themselves, but Dr. Hutton notes that it also lights up when younger children are hearing stories. What was especially novel was that children who were exposed to more books and home reading showed significantly more activity in the areas of the brain that process visual association, even though the child was in the scanner just listening to a story and could not see any pictures. "When kids are hearing stories, they're imagining in their mind's eye when they hear the story," said Dr. Hutton. "For example, 'The frog jumped over the log.' I've seen a frog before, I've seen a log before, what does that look like?" The different levels of brain activation, he said, suggest that children who have more practice in developing those visual images, as they look at picture books and listen to stories, may develop skills that will help them make images and stories out of words later on. "It helps them understand what things look like, and may help them transition to books without pictures," he said. "It will help them later be better readers because they've developed that part of the brain

"[In] A new study led by researchers at the University of California, Berkeley ... Brain scans revealed that people with no symptoms of Alzheimer's who engaged in cognitively stimulating activities throughout their lives had fewer deposits of beta-amyloid, a destructive protein that is the hallmark of the disease. ... While previous research has suggested that engaging in mentally stimulating activities - such as reading, writing and playing games - may help stave off Alzheimer's later in life, this new study identifies the biological target at play. ... Notably, the researchers did not find a strong connection between amyloid deposition and levels of current cognitive activity alone. "What our data suggests is that a whole lifetime of engaging in these activities has a bigger effect than being cognitively active just in older age," said Landau. The researchers are careful to point out that the study does not negate the benefits of kicking up brain activity in later years."

Playing a series of sounds to infants can speed up the way they process language and can also predict which infants will have trouble with language as they develop. Researchers concluded that processing language sounds sets up the neural foundation in babies.

The way that babies react to certain sounds can indicate their learning patterns and language capabilities later in life.

"When a surgeon cut into Henry Molaison's skull to treat him for epilepsy, he inadvertently created the most important brain-research subject of our time - a man who could no longer remember, who taught us everything we know about memory. Six decades later, another daring researcher is cutting into Henry's brain. Another revolution in brain science is about to begin."

By Lauren Lowry Hanen Certified Speech-Language Pathologist and Hanen Staff Member Do you ever wonder if boys really do talk later than girls? Or if it's confusing to speak two languages to a child? And when grandma says using a pacifier is going to cause speech problems later, should you believe her?

Interesting article that talks about becoming a bilingual later on in life and how one becomes bilingual.

The age at which children learn a second language can have a significant bearing on the structure of their adult brain, according to a new joint study by the Montreal Neurological Institute and Hospital -- The Neuro at McGill University and Oxford University. The study concludes that the pattern of brain development is similar if you learn one or two language 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.

An article discussing how when babies are in the womb and they listen to music, it builds a solid foundation for learning language later on.

ATLANTA - Sky is playing and playing. His mom tells him to take a break and drink some water. He does. A little while later, after they play some more, his mom tells him to go lay down. He does. Sky is a Border Collie. His mom is Doctor Melody Jackson.

"Biologists using tools developed for drawing evolutionary family trees say that they have solved a longstanding problem in archaeology: the origin of the Indo-European family of languages. ... Dr. Atkinson's work has integrated a large amount of information with a computational method that has proved successful in evolutionary studies. But his results may not sway supporters of the rival theory, who believe the Indo-European languages were spread some 5,000 years later by warlike pastoralists who conquered Europe and India from the Black Sea steppe."

"... I picked up a Nature's Promise product called Organic Raspberry Fruit Spread. Why did I not see the obvious syntactic danger? Some grammarian, I thought to myself later, when I saw what I'd missed."

"Talking or texting on a phone while walking can make it difficult to stay on course and may interfere with memory recall ... Moreover, participants who were texting while walking veered off course demonstrating a 61 percent increase in lateral deviation and 13 percent increase in distance traveled."