Serve and return interactions shape brain architecture. When caregivers are responsive to children’s signals, they help them build critical skills.
Source: Serve and Return
Because responsive relationships are both expected and essential, their absence is a serious threat to a child’s development and well-being. Healthy brain architecture depends on a sturdy foundation built by appropriate input from a child’s senses and stable, responsive relationships with caring adults. If an adult’s responses to a child are unreliable, inappropriate, or simply absent, the developing architecture of the brain may be disrupted, and subsequent physical, mental, and emotional health may be impaired. The persistent absence of serve and return interaction acts as a “double whammy” for healthy development: not only does the brain not receive the positive stimulation it needs, but the body’s stress response is activated, flooding the developing brain with potentially harmful stress hormones.