Peer-reviewed article
Investigation of the Prolonged Impact of Severe Socioeconomic Hardship and Mother's Perceived Social Support on Neurocognitive Development in Young Children in the Rural Ecuadorian Amazon.
Matthew L Cook, Lisa K Boyce, Spencer D Bradshaw, Marcela Santos, Eduardo Ortiz et al. ·
Summary
Written by AI, not yet AICS's view · claude-haiku-4-5-20251001This study followed 28 Indigenous children in rural Ecuador from age 2 to 5 years to understand how poverty affects brain development. Children whose mothers reported having strong social support showed normal brain activation patterns during a thinking task, while children whose mothers had less support showed unusual patterns. The findings suggest that helping mothers build stronger social networks may protect children's developing brains from the stress of living in poverty.
Key points
- 28 Indigenous children from rural Ecuadorian Amazon were assessed for cognitive ability at age 28 months and brain activation at age 58 months
- Maternal perceived social support acted as a buffer: children of mothers with high support showed normal brain activation regardless of early cognitive ability
- Children of mothers with low social support showed atypical cortical activation patterns (hyper- or hypoactivation) linked to early cognitive ability
- Socioeconomic hardship is associated with neurocognitive delays, but this relationship may be modified by maternal social support
- The study emphasizes the importance of culturally embedded social resources and maternal social networks in promoting resilience
Limitations
The study includes only 28 children, a small sample size that limits generalizability. The cross-sectional design at T2 and lack of a comparison group with higher socioeconomic status prevents firm causal conclusions about how social support protects development.
Abstract
Children living in conditions of severe socioeconomic (SES) hardship are at elevated risk for neurocognitive delays, yet most developmental neuroscience research has focused on children in high-income, Western populations, limiting our understanding of diverse developmental contexts. This study examined maternal perceived social support as a potential buffer against the stressors associated with SES hardship on child neurocognitive development in a longitudinal sample of Indigenous families in the rural Ecuadorian Amazon. Twenty-eight children (M age = 28.02 months at T1; 57.6 months at T2) participated in the study completing an assessment of early cognitive ability at T1 and an inhibition task while functional near-infrared spectroscopy (fNIRS) measured cortical activation at T2. A three-level linear mixed model revealed a significant interaction between early cognitive ability and maternal perceived social support on functional activation. Specifically, children of mothers with high social support showed no association between early cognitive ability and cortical activation, while those with low support exhibited atypical patterns (hyper- or hypoactivation), suggesting that increased maternal perceived social support may help buffer the risk exposure of chronic stressors associated with SES hardship. These findings underscore the importance of culturally embedded social resources in promoting resilience among children facing cumulative risk. Supporting maternal social networks may be a promising pathway for improving child neurodevelopment in underrepresented, low-resource communities and contributes to more inclusive global models of brain development.
Findings the Hub has extracted
Each claim below is labelled by its type of design and links back to this report.
Problem
Children living in severe socioeconomic hardship show elevated risk for neurocognitive delays
- Intervention
- Maternal perceived social support as a potential protective factor/buffer
- Population
- 28 Indigenous children (M age 28 months at baseline, 58 months at follow-up) and their mothers in rural Ecuadorian Amazon
Key finding
Children of mothers with high social support showed no association between early cognitive ability and cortical activation (normal pattern)
Cook et al. · PubMed (US National Library of Medicine) · 19 Oct 2026