It’s not just genetics, it’s not just diet—many factors contribute to healthy brain development in people, which continues until about 25 years of age. At yesterday’s International Neuroethics Society (INS) panel, “The Brain in Context,” three neuroscientists talked about different aspects of the physical and social environments that can affect the developing brain.
Even before a baby is born, in utero processes can have long-term effects on brain development. Panelist Moriah Thomason of Wayne State University uses fMRI to study how the different regions of the fetal brain communicate with each other. In a longitudinal, Detroit-based study, she and her colleagues found that babies born pre-term show less brain connectivity than those born full-term. Of particular note, a small area on the left side of the brain associated with language processing showed weaker connectivity with other brain areas.