Pierce, LaraBadal, Ana Alexandra2024-11-072024-11-072024-07-242024-11-07https://hdl.handle.net/10315/42446Associations between maternal socioeconomic stress (SE-stress) at 6 months, quality and quantity of joint attention (JA) at 24 months, and relative alpha and theta activity at rest in 24- to 36-month-old infants were examined. Data from 116 mother-infant dyads from predominantly low-income families were analyzed. Multiple hierarchical regressions indicated significant associations between SE-stress and EEG outcomes, SE-stress and JA quality, and JA quality and 24-month outcomes. Several models tested whether JA quantity/quality mediated or moderated associations between SE-stress and EEG outcomes. A significant moderation effect of JA quantity on the association between stress and theta at 36 months was found, indicating a stronger association between maternal stress and theta power at 36 months when dyads engaged in less JA during play. Overall, findings show SE-stress is associated with both infant resting brain activity and engagement in JA during play. Associations between stress and EEG outcomes vary depending on the quantity of engagement in JA.Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.Developmental psychologyNeurosciencesPsychologyElectronic Thesis or Dissertation2024-11-07Joint attentionInfant neurodevelopmentSocioeconomic stressEEGThetaAlpha