Which synaptic connections are formed first in a baby's brain development?

Dr. Michael Roizen, MD
Internal Medicine
Interestingly, synaptic connections are formed in a particular order. First come the primary sensory synapses, so baby can sense the world around him; followed by those synapses that control gross motor skills, so that he can escape from any threats he senses; then fine motor skills, so he can write about what he just did. Last come the synapses that control higher brain functions such as motivation, judgment, and reasoning, so that he learns what he may have done right and wrong in any given situation. These final pathways aren't fully functional until the late teens or even early twenties.
YOU: Raising Your Child: The Owner's Manual from First Breath to First Grade

More About this Book

YOU: Raising Your Child: The Owner's Manual from First Breath to First Grade

There’s little doubt that parenting can be one of the most rewarding and satisfying experiences you’ll ever have. But it can be plenty tough, too: Around the clock, you’re working to keep your...

Continue Learning about Fetal Development Basics & Pregnancy

What are the big developmental milestones during pregnancy?
Dr. Michael Roizen, MDDr. Michael Roizen, MD
Here's what's happening at week number… 6. The heart and a big part of the lungs are formed, as wel...
More Answers
What is the earliest that is healthy for my baby to be born?
Honor Society of Nursing (STTI)Honor Society of Nursing (STTI)
Week 37 is when your baby is considered full-term. At this point, the baby is far enough in developm...
More Answers
Which tests can diagnose impairment in my fetus?
Boston Women's Health Book CollectiveBoston Women's Health Book Collective
Three types of tests screen for or diagnose potential impairments in the fetus are:-The first type i...
More Answers
What are fetal diagnostic procedures?
Deborah Raines, MSNDeborah Raines, MSN
Fetal Diagnostic Procedures include a variety of assessments and test that examine the fetus or stru...
More Answers

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.