Researchers have found that 6-year-olds give more sustained attention to their toys or activities than do younger children.What has this developmental change in attention span been attributed to?

Question

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The developmental change in attention span observed in 6-year-olds, compared to younger children, has been attributed to the myelinization of the reticular formation. Myelinization is the process of forming a myelin sheath around a nerve to allow nerve impulses to move more quickly. The reticular formation is a part of the brain involved in regulating attention and alertness, among other functions. As it becomes more myelinated, children can focus their attention for longer periods.

Researchers Have Found That 6-Year-Olds Give More Sustained Attention to Their