The Brain on Grandchildren
Dr. James Rilling, a professor of anthropology and psychiatry at Emory University, conducted a study involving 50 grandmothers who viewed photographs of their grandchildren while undergoing fMRI scans. The results indicated notable activity in brain regions associated with emotional empathy, which allows individuals to share and reflect the emotions of others. When the women saw images of their grandkids, their brains mirrored the child’s expressions—joy elicited joy, while distress triggered a corresponding response.
Rilling noted that the data highlighted significant activation in areas tied to emotional empathy, suggesting that grandmothers may be particularly attuned to their grandchildren’s feelings during interactions. This response differed from how the same women’s brains reacted to photos of their own children. In those cases, the scans showed activity in regions linked to cognitive empathy, which involves understanding emotions without necessarily sharing them. Cognitive empathy supports problem-solving and guidance, while emotional empathy fosters an immediate, intuitive connection.
The study had limitations, including a focus solely on grandmothers and a relatively small sample size. Additionally, the research was conducted within a specific cultural context, leaving questions about how these findings might apply more broadly. Despite these constraints, the results align with anecdotal accounts from many grandparents, who describe a bond with their grandchildren that feels both familiar and uniquely powerful.
Love on Steroids
In an essay exploring her experience as a grandmother, one woman reflected on the difference between raising her children and loving her grandsons. She described the latter as an overwhelming surge of emotion, a feeling that resonated with many others in similar roles. This intensity, while not universal, is a common theme among grandparents who report a deep, almost instinctive connection to their grandchildren.

Nancy Claus, a grandmother from Connecticut, shared her experience of holding her granddaughter Isabella. She recalled the moment the child locked eyes with her and smiled, saying the interaction left her flooded with warmth and happiness. While not every grandparent may relate to such vivid descriptions, those who do often find the science behind these emotions validating. Research suggests that the brain’s response to grandchildren is not merely a product of nostalgia or habit but may involve distinct neurological patterns that prioritize emotional attunement.
Why It Matters for Grandchildren
The emotional connection between grandparents and grandchildren may have meaningful effects on child development. When a grandparent reflects a child’s joy or distress, it can reinforce the child’s sense of being understood, which may contribute to emotional security. This attunement could play a role in fostering resilience and social skills as the child grows.
Practical considerations also come into play, as grandparents are increasingly involved in caregiving. Recent data indicates that a significant portion of grandparents in the U.S. provide some form of care for their grandchildren, whether through regular childcare or financial support. While the research does not yet draw direct policy conclusions, it highlights the importance of understanding the dynamics of intergenerational relationships, particularly as family structures continue to evolve.
The research also raises important questions. For instance, how does the grandparent-grandchild bond function when distance or estrangement disrupts it? Do grandparents who are less involved with their grandchildren exhibit different neural responses? Additionally, as families become more geographically dispersed and digital communication becomes more common, how might these dynamics shift over time?
What We Still Don’t Know
Despite its contributions, Rilling’s study leaves several unanswered questions. One notable gap is the absence of grandfathers in the research, which means it remains unclear whether similar neural patterns apply to them. Cultural differences also warrant further exploration. For example, do grandparents in collectivist societies, where extended families often live together, exhibit the same brain activity as those in more individualistic cultures? What about grandparents who serve as primary caregivers—does their brain activity resemble that of parents?

Another unresolved question is whether this neural wiring is innate or developed through experience. Some evidence suggests a combination of both, but the precise mechanisms are not yet fully understood. Researchers have also not determined whether the emotional empathy grandparents feel for their grandchildren influences their own well-being. While some studies indicate that strong intergenerational relationships may reduce loneliness and improve mental health in older adults, the Emory study did not measure long-term outcomes, leaving this connection speculative.
For many grandparents, the science simply aligns with their lived experiences. One grandmother described the duality of joy and vulnerability that defines the relationship, capturing the intensity of the bond. As research continues to uncover the neurological underpinnings of these connections, it may shape how society views aging, family, and the enduring ties between generations.
Worth a look
