5 Year Project by Antonio Damasio to Look at Music and Child Brain Development

Famed neuroscientist Antonio Damasio and associates at USC will follow children for 5 years -- during the period between roughly the ages of 6 years old up to 12 years old -- in order to qualify and quantify the effects of high intensity music training on brain development.

Childhood music training has been linked to superior language skills, better math skills, and enhanced creativity. The study described in the article below should add significant information in relationship to those questions.

Researchers at USC Brain and Creativity Institute will explore the effects of intense music training on cognitive development...The five-year research project, Effects of Early Childhood Musical Training on Brain and Cognitive Development, will offer USC researchers an important opportunity to provide new insights and add rigorous data to an emerging discussion about the role of early music engagement in learning and brain function.

Starting when the children are between the age of 6 and 7, to ages 11 and 12, the researchers will use standard psychological assessments and advanced brain imaging techniques to track brain, emotional and social development. The group of children involved in the YOLA at HOLA program will be compared to a control group of children matched in age, socio-economic status and cognitive abilities, but with no musical training.

All children will be followed for five consecutive years, providing a rare chance for researchers to discover the effects of musical training on emotional, social and cognitive aspects of development as they actually occur, rather than inferring later-life effects. The USC Brain and Creativity Institute team began working with YOLA at HOLA students in September 2012. _NeuroscienceNews

The young human brain passes through developmental windows -- or critical periods of development -- when specific brain plasticity leading to the ability to learn particular skills becomes optimal. After these windows for specific cognitive skills are closed, it is more difficult for the child to develop those skills to a mastery level.

This is true not only for musical skills, but for foreign language skills -- and probably for some cognitive skills that lead to later mastery of some forms of higher mathematics.

The early and middle childhood years are quite precious in terms of fortifying the child's brain for meeting the difficult challenges he will meet in the future. Modern societies typically squander these early years -- despite what is already known about critical windows of development.

The truly explosive knowledge regarding developmental windows of opportunity is likely yet to be discovered.

Musical Prodigies in Diapers? Science and Early Music Training

A recent study published in Developmental Science suggests that early training in active "participitory" musical experience boosts a six month old's communications and social skills.

We found that random assignment to 6 months of active participatory musical experience beginning at 6 months of age accelerates acquisition of culture-specific knowledge of Western tonality in comparison to a similar amount of passive exposure to music. Furthermore, infants assigned to the active musical experience showed superior development of prelinguistic communicative gestures and social behaviour compared to infants assigned to the passive musical experience. These results indicate that (1) infants can engage in meaningful musical training when appropriate pedagogical approaches are used, (2) active musical participation in infancy enhances culture-specific musical acquisition, and (3) active musical participation in infancy impacts social and communication development. _Developmental Science (abstract)

Six months has always been considered too early to begin musical training for infants. But if, in fact, the infant brain is particularly "plastic" to musical training at, or near, the age of six months, it may someday be seen as a sign of parental neglect to deprive infants of active participatory musical training!

More:

The researchers describe a six-month experiment featuring 34 infants and their parents. The babies’ average age at the time of the first session was six and one-half months; the last week of classes occurred around their first birthday. Twenty of the infants and their parents participated in weekly, hour-long interactive music classes, which utilized the well-known Suzuki method.

“Two teachers worked with the parents and infants to build a repertoire of lullabies, action songs and nursery rhymes,” the researchers write. “Parents were encouraged to use the curriculum CD at home and to repeat the songs and rhymes daily.”

The other 14 infants and their parents enrolled in passive music classes, where they listened to “a rotating series of recordings from the popular Baby Einstein series” while playing together with balls, blocks or books. After six months, those who took part in the active music lessons demonstrated a preference for tonal over atonal music—a pattern not found in the passive group. In addition, the researchers found “significantly larger and/or earlier responses” to piano tones in the brains of the babies who took active lessons.

But the benefits of this training went far beyond early indications of music appreciation.

“After participation in active music classes, infants showed much lower levels of distress when confronted with novel stimuli than after participation in passive music classes,” the researchers report. All the babies smiled and laughed less as they aged during the experiment, but the fall-off was greater among the passive listeners.

Communication skills were also positively affected. “Use of gestures increased greatly between six and 12 months of age,” the researchers note, “but increased more so for those in the active compared to the passive music classes.”

Trainor and her colleagues do not view these developments as isolated. “Positive social interactions between infants and parents likely lead to better communication and earlier acquisition of communicative gestures, which in turn lead to more positive social interactions,” they write. _PSMag

It is important to emphasise that parental participation was key to the positive social and communication skills results obtained from the "active participatory" training group. Parent-child bonding was almost certainly enhanced as well.

It is difficult to overstate the importance of parental involvement in critical period training of children. If parents are too busy to help children take optimal advantage of developmental windows, it is unlikely that anyone else will take the necessary amount of care in such training opportunities.

If parents are there every step of the child's critical development and skills acquisition, the bonding of common experience and the building of trust as the child gains confidence and competence, will pay lifetime dividends for both parent and child.

Dangerous Child: Critical and Sensitive Periods of Plasticity

The term "neural plasticity" means the ability of the brain to reshape itself. Critical periods of brain plasticity are times when particular circuits and intercircuits of the brain are particularly prepared for experiences which will assist the genetically encoded development of those circuits.

The brain tends to develop from posterior to anterior. From the occipital lobe in infancy to the prefrontal lobes in late adolescence and early adulthood, brain circuits mature and myelinate according to a particular sequence which is genetically encoded -- but can be altered somewhat by experience.

If a newborn's eyelids are sewn shut so that he cannot see from the time of birth, his occipital lobes will eventually be used for other types of processing rather than seeing. If only one eye is unable to see, the other eye's visual input will move into the brain territory which would have been used for the "dark eye's" input.

More about what is known scientifically about critical periods, with an emphasis on the visual system:

From polyglots to virtuosi, human performance reflects the neural circuits that are laid down by early experience. Although learning is possible throughout life, there is no doubt that those who start younger fare better, and that plasticity is enhanced during specific windows of opportunity. An understanding of the neural basis of such CRITICAL or SENSITIVE PERIODS of brain development would inform not only classroom and educational policy, but also drug design, clinical therapy and strategies for improved learning into adulthood. Although which might be the critical periods for higher cognitive functions such as language, music or emotional control is the subject of popular debate, such sweeping questions fail to acknowledge the sequential nature of a multistage process that involves many brain regions. _Critical Periods in Local Cortical Circuits (PDF)

Critical Periods in Language Acquisition (PDF)

Much of the knowledge about critical and sensitive developmental periods of plasticity was learned from animal research. Here is an intriguing study demonstrating the restoration of critical period plasticity in the auditory cortex of rats (PDF).

The concept of "critical periods" is quite controversial. Perhaps one reason for the controversy is that many scientists do not want to consider that very young children may have special needs which are not easily met except by persons who are heavily invested in that child. Many child psychologists are women who in fact were unable to take time away from their careers to spend intense time with a child who may have been passing through several critical periods. Subconsciously, such a scientist might wish to minimise any blame to herself for pursuing her career -- even if the only person who might possibly point a finger is herself.

But careful research in animals has clearly demonstrated that animals raised in an environmentally complex -- stimulus rich -- environment, experience superior neural and brain support structure development than animals raised in a stimulus poor environment. It is not likely that the developing brains of human infants are an exception to this tendency to thrive on the richness of stimuli in the environment.

We are accustomed to hearing -- in regard to aging and memory -- "use it or lose it!" But that maxim is likely to apply in a much deeper manner to the developmental time windows in the young brain.

But there is a problem, in that very few neuroscientists, cognitive scientists, or child and adolescent developmental specialists actually understand how the mature brain works, much less how the working brain came to be the way it is through various developmental periods.

It is easily possible for an interested and intelligent parent to know far more about the natural development of the child than most "experts", through observation, careful reading, and trial and error. And if a parent wants his child to develop into a "dangerous child," the parent will need to work hard to understand the process -- preferably before the child reaches each critical period.

It may seem a bit unprofessional to think of a child's developing brain in these terms, but in many ways a child's developing brain is much like a fine gourmet dish, or a carefully prepared perfume. The sequence of assembly is crucial, as is the skillful touch applied to each step, each finely textured layer.

Of course, the developing brain is undergoing many active processes simultaneously, and is not a passive recipient of "the master's touch." Brains are capable of turning out rather well in spite of what seem like a large number of stupid mistakes on the part of caregivers, parents, teachers, and society. But that is no excuse for being sloppy or negligent.

We will look at critical periods more, and at the related concept of "rites of passage."