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In the womb

Just 16 days after conception – way before you know you are pregnant – your unborn baby�鶹APP�s neural plate (the foundation of your baby’s brain and spinal cord) is forming.

“At the same time, neural cells start travelling throughout the embryo to form the beginnings of nerves,” says Heidi Murkoff, the author of What to Expect.

The nerve cells form but are not actually developed as a brain during the first 12 weeks.

“Impulses begin to fire without pattern or direction,” explains the Developing Human Brain website. “Sensory organs and nerves are not developed at this point, so the foetus does not feel pain.”

Over the next few months, the sensory organs and nerves begin to develop. 

Research shows that outside influences can affect the unborn child�鶹APP�s brain development – both positively and negatively. 

In fact, the sounds made by dolphins can stimulate an unborn baby�鶹APP�s brain even more than music or talking to your “bump”! 

“The high-range sounds dolphins emit are registered by the baby. These sounds stimulate the nerves in the brain and the child’s audible senses,” said Elizabeth Yalan, dean of the Obstetrician College of Peru.

Neuroscientists can now identify patterns in brain activity that appear to be associated with some types of negative early experiences. 

The long-term effects of early stress, poverty, neglect and maltreatment were well-documented and virtually uncontested years before scientists could �鶹APP�see�鶹APP� them with brain-scanning tools.

While most mothers in developed countries are given every opportunity to stimulate their unborn child, nourish it and protect it, it�鶹APP�s often a very different story for pregnant women in the developing world.

Birth to age three

A child�鶹APP�s brain undergoes a rapid period of development during these three years , producing 700 new neural connections every second. When a baby is born, 100 billion neurons – or brain cells – have already been produced.

The future of a child�鶹APP�s developing brain is in our hands. Parents, caregivers and family members all have a part to play in helping to form a baby�鶹APP�s brain.

Scientists are rapidly untangling how a child goes from seeing images when just born to being able to feed, talk, play and communicate by the age of three.

�鶹APP�Different stimuli and tasks, such as hearing a lullaby or reaching for a toy, help establish different neural networks,” wrote Yudhijit Bhattacharjee in an article for National Geographic.

�鶹APP�Between the ages of one and five, the brain goes through cycles of growth and streamlining, with experience playing a key role in engraving the circuits that will endure.�鶹APP�

Judit Gervain, a cognitive neuroscientist at Paris Descartes University, uses behavioural methods, optical brain imaging and electrophysiological measures to understand how babies learn their native language. 

She says: �鶹APP�For a long time we had this linear view. First, babies are learning sounds, then they are understanding words, then many words together.

�鶹APP�From recent results, we know that almost everything starts to develop from the get-go. Babies are starting to learn grammatical rules from the beginning.�鶹APP�

Researchers have shown that children around two and a half years old are savvy enough to correct grammatical mistakes made by puppets. By the age of three most children seem to master a considerable number of grammatical rules. 

Despite coming prewired with huge capabilities and potential, the brain depends heavily on environmental input to keep “growing” and developing. 

Scientists are now discovering precisely how that development is moulded by the interplay between nature and nurture.

Dr Alison Gopnik, a professor of psychology and affiliate professor of philosophy at UC Berkeley and author of Philosophical Baby, said: �鶹APP�One of the biggest changes I think that�鶹APP�s happened most recently is how amazingly much babies know from the time they�鶹APP�re born.  

“So, far from being a blank slate, even the youngest babies already seem to have some basic ideas about other people, about language, about the physical world about the objects around them.

�鶹APP�And one of the evolutionary ideas is that early period … is where we�鶹APP�re just free to learn and explore without actually having to put all that learning to work.   �鶹APP�The picture is that having a caregiver who�鶹APP�s actually willing to invest in taking care of you is one of the prerequisites for being able to do all this amazing learning that we know babies are capable of.�鶹APP�

Age three to age five

A five-year-old�鶹APP�s brain uses twice as much glucose (the energy that fuels the brain) as that of a full-grown adult, researchers at Northwestern University anthropologists have discovered.

The study shows that because the brain needs so much, the body doesn�鶹APP�t grow as rapidly. 

�鶹APP�Our findings suggest that our bodies can�鶹APP�t afford to grow faster during the toddler and childhood years because a huge quantity of resources is required to fuel the developing human brain,�鶹APP� said Christopher Kuzawa, an IPR biological anthropologist and first author of the study. 

�鶹APP�As humans we have so much to learn – and that learning requires a complex and energy-hungry brain.

�鶹APP�After a certain age it becomes difficult to guess a toddler or young child�鶹APP�s age by their size. Instead you have to listen to their speech and watch their behaviour.” 

Kuzawa said the study suggests this is no accident. He added: “Body growth grinds nearly to a halt at the ages when brain development is happening at a lightning pace because the brain is sapping up the available resources.�鶹APP� 

And because the preschool years are a period of extremely rapid brain development, it is crucial that this age group receive proper stimulation and nutrition. 

Children living in poverty, deprivation, abusive and war-torn environments are most at risk from not reaching their full potential because they are deprived of getting their most basic needs met.

Just by talking and interacting with a young child, you are increasing their brain development – and increasing their “usable” vocabulary. This period from age three to five is critical for language skills. 

�鶹APP�On average, a child�鶹APP�s vocabulary expands from 55 words at 16 months to 225 words at 23 months to 573 words at 30 months,�鶹APP� according to Professor Usha Goswami, Director of the Centre for Neuroscience in Education at the University of Cambridge.