Bachelor of Arts, University of Connecticut (2005)
Doctor of Philosophy, University of California Davis (2017)
Water Contaminant Levels Interact with Parenting Environment to Predict Development of Depressive Symptoms in Adolescents.
Contaminants in drinking water, such as lead, nitrate, and arsenic, have been linked to negative physical health outcomes. We know less, however, about whether such pollutants also predict mental health problems and, if so, the conditions under which such effects are strongest. In this longitudinal study, we examined whether drinking water contaminants interact with negative family environments (parental psychological control) to predict changes in depressive symptoms in 110 adolescents-a developmental period when symptoms often first emerge. We found that for adolescents in psychologically controlling families, levels of drinking water contaminants prospectively predicted depressive symptoms two years later; this effect was not present in adolescents in non-controlling families. Importantly, these associations were not accounted for by family- or community-level socioeconomic resources, demographic features, or by the adolescents' stress exposure. These findings highlight the interplay of physical and psychological environments in influencing depressive symptoms in adolescents. This article is protected by copyright. All rights reserved.
View details for PubMedID 31009144
- Inter-brain synchrony in mother-child dyads during cooperation: An fNIRS hyperscanning study NEUROPSYCHOLOGIA 2019; 124: 117–24
Resting Heart Rate Variability is Negatively Associated with Mirror Neuron and Limbic Response to Emotional Faces.
Whether neurovisceral integration, reflected by resting high-frequency heart rate variability (HRV), constrains or facilitates neural reactivity to other people's emotions is unclear. We assessed the relation between resting HRV and neural activation when observing and imitating emotional faces. We focused on brain regions implicated in sensorimotor resonance, salience detection and arousal. We used electrocardiogram data to compute resting HRV. Resting HRV measures were negatively correlated with activation in a portion of the inferior frontal gyrus showing mirror neuron properties, the insula and the amygdala in response to observation, but not imitation, of emotional faces. Thus, resting HRV appears to be linked to sensitivity to others' emotional cues, both in terms of the tendency to map others' emotional facial expressions onto one's own motor system and to rapidly detect and mark others' emotions as salient events. Resting HRV may reflect, in part, a threshold for increased processing of others' emotional cues.
View details for DOI 10.1016/j.biopsycho.2019.107717
View details for PubMedID 31199946
Linking autonomic physiology and emotion regulation in preschoolers: The role of reactivity and recovery
2018; 60 (7): 775–88
Physiological recovery from negative emotions may be important for effective self-regulation, but little is known about recovery processes in children. The current study investigated links between autonomic physiology, anger expressions, and emotion regulation in a sample of eighty-three 3.5-year-olds. Respiratory sinus arrhythmia and pre-ejection period were measured during an anger induction task as parasympathetic and sympathetic indices, respectively. We examined whether preschoolers' anger expressions and emotion regulation behaviors were associated with individual differences in physiology. Autonomic changes were more strongly linked with emotion regulation than with expressed anger. Verbalized regulatory strategies were linked with greater sympathetic reactivity and also with greater recovery. In contrast, attention diversion was associated with blunted patterns of sympathetic reactivity followed by increased sympathetic arousal in the recovery phase. Disengaging from an emotional challenge may be linked with reduced physiological arousal in the short term, this behavior but also appears to have delayed consequences for physiological recovery.
View details for PubMedID 29926898