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Related Concept Videos

Psychological Responses to Stress01:20

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Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
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Stress analysis under multiple loading conditions is intricate, necessitating a comprehensive grasp of normal and shearing stresses. Consider a small cube at point O, subjected to stress on all six faces, visible or not. Normal stress components σx, σy, σz act perpendicularly to the x, y, and z axes. Shearing stress components τxy and τxz are exerted on faces perpendicular to these axes.
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Related Experiment Video

Updated: Sep 18, 2025

Using a Murine Model of Psychosocial Stress in Pregnancy as a Translationally Relevant Paradigm for Psychiatric Disorders in Mothers and Infants
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Maternal Stress Responses and Coping Following a NICU Experience.

Kim K Doheny1,2, Fumiyuki C Gardner2, Saher Ali2

  • 1Department of Neural and Behavioral Sciences, Penn State College of Medicine, Hershey, PA 17033, USA.

Children (Basel, Switzerland)
|June 26, 2025
PubMed
Summary

Maternal stress in the neonatal intensive care unit (NICU) impacts mental health. Different coping styles, like anger/trauma versus gratitude/optimism, show distinct physiological stress responses, influencing maternal well-being.

Keywords:
NICUcopingheart rate variabilitymaternalsalivary cortisolstress

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Area of Science:

  • Psychoneuroendocrinology
  • Maternal mental health
  • Neonatal intensive care unit (NICU) research

Background:

  • Neonatal intensive care unit (NICU) admission causes significant maternal stress.
  • This stress can negatively affect maternal mental health and parent-infant bonding.
  • Understanding maternal stress responses is crucial for developing supportive interventions.

Purpose of the Study:

  • To explore maternal stress response, coping mechanisms, and resilience.
  • To examine physiological stress markers (salivary cortisol, heart rate variability) alongside maternal narratives.
  • To identify patterns in maternal stress perception and their link to physiological responses.

Main Methods:

  • Mixed-methods study involving 28 mothers with infants previously in the NICU.
  • Laboratory session included stress induction via the Trier Social Stress Test (TSST).
  • Measured salivary cortisol (sCort) and heart rate variability (HRV) for physiological stress assessment.

Main Results:

  • Maternal narratives revealed distinct groups: anger/trauma (AT), gratitude/optimism (GO), and mixed (M).
  • Gratitude/optimism mothers showed significantly higher cortisol reactivity during recovery (p < 0.01).
  • Higher baseline high-frequency heart rate variability (HF-HRV) was observed in GO mothers, but HRV responses did not differ significantly between groups.

Conclusions:

  • Maternal perception of NICU experiences correlates with unique physiological stress patterns.
  • Stress appraisal and coping strategies are vital components of maternal well-being post-NICU.
  • Findings underscore the need for tailored support addressing individual maternal stress responses.