Recent Research on the Brain and Early Childhood Development
As research in neuroscience advances, our understanding of the brain and healthy brain development continues to change. The following are some recent reports and news releases highlighting cutting-edge research related to the brain and child development. Examples of recent brain research are also highlighted on the BBB Home Page.
New research shows the amygdala is also active in response to pleasant experiences.
The function of the brain may actually be influenced by individuals’ cultural environments.
Building structural connections in a young child’s developing brain is essential for higher-order brain functioning.
Research shows that children as young as age 6 understand what practice is and deliberately practice for the future.
New research shows that dendrite activity has a role in storing long-term memories.
A review of the research on the effectiveness of cognitive training that promises to delay or reduce mental decline.
In a new working paper, the National Scientific Council on the Developing Child explains how early experiences can actually change the way genes express themselves, with long-term implications.
New research confirms that early experiences have the power to change brain circuits.
Even though children cannot actively remember life events before the age of 3 or 4, recent research shows that babies begin using the hippocampus, the brain’s memory center, as young as 3 months old.
Research with twins suggests that genetics heavily influence gaze patterns, which contribute to children’s attention and interaction with the environment.
A new study of twins shows that differences in the development of aggression in toddlers are partly due to genetic differences.
Glial cells, the support cells that help neurons function, also play a role in learning and memory in mice.
Children who believe their intelligence can grow are more likely to learn from their mistakes than children who think their intelligence is fixed.
A new technology known as SWIFT provides more in-depth information about how the human brain categorizes images.
New research from Norway shows how the brain maps the environment to make navigation in space possible.
New research suggests that infants may make rational deductions, showing surprise when an unexpected outcome occurred.
In a sample of teenagers, students who did not take math classes had lowered amounts of chemicals important for brain plasticity.
A baby’s memory can depend on their mood. Babies who learned something while in one mood, such as happy, recalled it better when they were happy again later.
A newly-discovered group of brain cells in the prefrontal cortex have been found to be related to sociability. When children are socially isolated, this connection can have long-term impacts on the brain into adulthood.
Children who are spanked show greater activity in brain regions that respond to threats.
Brain Disorders and Disabilities
Researchers have discovered that child abuse changes the thickness of the myelin coating of axons in the brain. These changes could have long-lasting negative effects on emotion regulation and attachment.
Young adults diagnosed with ADHD in adolescence have different brain structures than young adults who do not have ADHD.
Mothers who drink even small amounts of alcohol during pregnancy can increase the risk of alcoholism in the next three generations.
Parents who faced severe stress or trauma as children are more likely to have children with ADHD and mental health issues.
Developmental differences in late-preterm babies may not show up until after age 2.
Many parents of premature babies fear that their child will have later difficulties in school, but research shows that most babies born prematurely are ready for kindergarten on time and achieve similar academic outcomes to full-term babies.
Babies exposed to tobacco products in utero, or shortly after birth, have an increased risk of behavior problems.
Infant-directed song may have evolved as a way for adults to signal to infants that their needs are being met.
The visual word form area (VWFA) in the language center of the brain is prewired to see words and letters beginning at birth.
Toddlers in noisy environments may have more difficulty learning new words.
Regularly reading out loud to children, beginning in infancy, can increase vocabulary and reading skills even before they enter school.
Even brief exposure to a language in infancy affects how the brain is wired for language.
What does toddlers’ use of “a” and “the” tell us about their language development?
People who stutter have less blood flow to Broca’s area, which controls productive language in the brain.
Researchers have found a significant relationship between poor sleep in adolescence and later mental health issues. Teens who experience very poor sleep are more likely to experience poor mental health in later life.
Babies’ brains are more active in sleep than previously thought. The twitching of limbs during REM sleep helps babies control motor movements when awake. A recent study found this twitching also occurs during a new sleep stage called “quiet sleep.”
Any amount of breastfeeding can be beneficial for baby. Even babies who had only been breastfed for a few days had lower blood pressure as toddlers compared to their peers who had not been breastfed at all.
Even though many parents expect their babies to sleep through the night by 6 months, sleep patterns vary greatly from baby to baby, and even from night to night in the same baby.
Preschoolers with better fine and gross motor skills perform better on kindergarten readiness measures.
Do physical activity interventions lead to improved cognitive skills in children? Researchers who re-analyzed data from 3 studies found that regular exercise improves cognition more in children with poor cognitive performance before the intervention.
Researchers have discovered that many infants begin eating complementary foods too soon. Current recommendations suggest introducing solid foods to infants at 6 months of age.
Attachment, Relationships, and Social-Emotional Development
Research suggests that both older and younger siblings contribute to the development of empathy in each other.
Harsh parenting practices can have long-term impacts on brain development. Increased hitting, shaking, yelling, and anger are related to smaller brain structures in adolescence.
Research suggests that infants learn prosocial behavior through imitation. When they observe helping behavior, they are more likely to be helpful.
Children notice race years before many adults want to talk about it. Parents believe children should be at least 5 before they bring up the conversation of race, but infants and preschoolers may already be aware of race.
Music training positively changes children’s brain structure, leading to lasting benefits.
Consistency and Stress
Researchers using an experimental model of a newborn brain damaged by oxygen deprivation at birth have discovered that an enriched environment – with increased opportunities for physical activity, socialization and exploring novel stimuli – helped lessen the brain’s deficits.
Child abuse and neglect may be related to life expectancy. People who experience sexual abuse are at higher risk for dying in middle age.
Children who experience abuse or other traumatic experiences at an earlier age show markers of rapid biological aging.
Although the COVID-19 pandemic has affected everyone’s life, children are especially struggling because their agency, or ability to control and make choices within adult-imposed limits, has been reduced. As children return to school and other everyday activities, giving them time for play—and setting up chances to exercise reasonable ‘agency’ during this transition—are two key ways to support their well-being.
The stress of early abuse and neglect may make the brain less able to process positive emotions and rewards.
Mothers’ stress levels during pregnancy can increase their child’s risk of developing disease throughout their lifetime by altering the developing baby’s mitochondrial DNA.
Regular bedtimes, mealtimes, and other routines help preschoolers regulate emotions, which may help reduce obesity risk later in life.
Elementary students whose teachers are experiencing burnout tend to have higher cortisol levels, indicating more stress.