PCLI - Artigos em revistas internacionais
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Browsing PCLI - Artigos em revistas internacionais by Author "Bakermans-Kranenburg, Marian J."
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- Effects of a soft baby carrier on fathers’ behavior and hormones: A randomized controlled trialPublication . Verhees, Martine W. F. T.; Lotz, Anna M.; de Moor, Marleen H. M.; van IJzendoorn, Marinus H.; Fidder, Annabeth A. E. J.; Buisman, Renate S. M.; Bakermans-Kranenburg, Marian J.Increased father–infant physical contact may promote early paternal caregiving. This randomized controlled trial, preregistered on https://osf.io/qwe3a , tested the effects of a soft baby carrier intervention on fathers’ parenting behavior and hormonal levels. Eighty first-time fathers of 2- to 4-month-old infants were randomly assigned to a baby carrier intervention group (n = 41 fathers) or a control group receiving an infant seat (n = 39 fathers). Fathers were instructed to use the baby carrier or seat for 3 weeks. Fathers’ sensitive parenting behavior, involvement, salivary oxytocin and cortisol basal levels and reactivity to interacting with the infant were assessed at pre-test (on average 2 weeks before the intervention) and at post-test (on average 1 week after the intervention period ended). The results showed that the intervention did not enhance fathers’ sensitive parenting or involvement. Involvement operationalized as hours spent with the infant decreased over time for fathers in the carrier condition compared to fathers in the control condition. The baby carrier intervention had no effect on fathers’ basal oxytocin or cortisol levels, nor did it affect fathers’ oxytocin or cortisol reactivity to interacting with their infant. Our findings indicate that 3 weeks of using a baby carrier does not have immediate beneficial effects on fathers’ parenting behavior or hormonal functioning as assessed here. Future research may examine whether infant carrying has beneficial effects on the longer term or in different groups of fathers, and how fathers’ infant carrying affects their infants.
- Genetic differences in reactivity to the environment impact psychotic-like and affective reactivity in daily life neusPublication . Barrantes-Vidal, Neus; Torrecilla, Pilar; Mas-Bermejo, Patricia; Papiol, Sergi; Bakermans-Kranenburg, Marian J.; Rosa, Araceli; Kwapi, Thomas R.Background and Hypothesis: Consistent with diathesisstress models, psychosis research has focused on genetic moderation of adverse environmental exposures. In contrast, the Differential Susceptibility (DS) model suggests that the same genetic variants that increase risk-inducing effects of adverse experiences also enhance benefcial effects from positive experiences. This study examined whether individuals with high genetic susceptibility to the environment showed differential psychotic-like and affective reactivity in response to positive and negative events in daily life. Study Design: Experience sampling methodology assessed context (positive and stressful) and momentary levels of paranoia, psychotic-like experiences (PLE), and positive (PA) and negative affect (NA) in 217 non-clinical adults oversampled for schizotypy. Linear mixed models examined whether Polygenic Risk Scores of Environmental Sensitivity (PRS-ES) moderated the impact of current context on subsequent experiences. Study Results: PRS-ES moderated positive, but not stressful, context on subsequent levels of momentary paranoia, NA, and PA, but not PLE. Genetic and environmental (G × E) interactions indicated diathesis-stress at lower thresholds of PRS-ES, but a DS model at the highest threshold of the PRS-ES. Participants with elevated PRS-ES showed increased paranoia and NA and decreased PA in subsequent assessments when reporting low levels of positive situations, but also decreased paranoia and NA and increased PA when rating contexts as positive. Conclusions: Findings support the infuence of genetic sensitivity to the environment on psychotic-like and affective reactivity in daily life, particularly in response to positive contexts. This highlights the transdiagnostic protective role of positive experiences and informs ecological momentary interventions.
- Genetic susceptibility to the environment moderates the impact of childhood experiences on psychotic, depressive, and anxiety dimensionsPublication . Barrantes-Vidal, Neus; Torrecilla, Pilar; Mas-Bermejo, Patricia; Papiol, Sergi; Bakermans-Kranenburg, Marian J.; Kwapil, Thomas R.; Rosa, AraceliBackground and Hypothesis: Consistent with diathesisstress models, psychosis research has focused on genetic moderation of adverse environmental exposures. In contrast, the Differential Susceptibility (DS) model suggests that the same genetic variants that increase risk-inducing effects of adverse experiences also enhance beneficial effects from positive experiences. This study examined whether individuals with high genetic susceptibility to the environment showed differential psychotic-like and affective reactivity in response to positive and negative events in daily life. Study Design: Experience sampling methodology assessed context (positive and stressful) and momentary levels of paranoia, psychotic-like experiences (PLE), and positive (PA) and negative affect (NA) in 217 non-clinical adults oversampled for schizotypy. Linear mixed models examined whether Polygenic Risk Scores of Environmental Sensitivity (PRS-ES) moderated the impact of current context on subsequent experiences. Study Results: PRS-ES moderated positive, but not stressful, context on subsequent levels of momentary paranoia, NA, and PA, but not PLE. Genetic and environmental (G × E) interactions indicated diathesis-stress at lower thresholds of PRS-ES, but a DS model at the highest threshold of the PRS-ES. Participants with elevated PRS-ES showed increased paranoia and NA and decreased PA in subsequent assessments when reporting low levels of positive situations, but also decreased paranoia and NA and increased PA when rating contexts as positive. Conclusions: Findings support the influence of genetic sensitivity to the environment on psychotic-like and affective reactivity in daily life, particularly in response to positive contexts. This highlights the transdiagnostic protective role of positive experiences and informs ecological momentary interventions.