Parental acceptance and trauma resilience are linked to faster brain development in 9-13-year-olds
An analysis of the Adolescent Brain Cognitive Development study data showed that children accepted by their parents and more resilient to trauma tend to have an accelerated pace of cortical thinning, an indicator of brain development. In contrast, children exposed to household abuse tended to show slower microstructural development of the brain. The paper was published in Psychological Medicine. As children grow, the cerebral cortex undergoes major structural and physiological changes that support increasingly complex thinking and behavior. In early childhood**,** the brain produces a very large number of synaptic connections between neurons, a process known as synaptogenesis. This overproduction makes the young brain highly plastic and responsive to environmental experiences and learning. As development progresses, many of these connections are gradually removed through synaptic pruning, strengthening frequently used neural pathways while eliminating less efficient ones. One visible consequence of this process is cortical thinning, where the thickness of the gray matter in the cortex decreases as redundant synapses are pruned and neural circuits become more efficient. At the same time, axons become increasingly wrapped …
