Abnormal Development - Mental Health Flashcards
What are the different stress types?
- Good stress
- Tolerable stress
- Toxic stress (negative long-term effects) = allostatic load.
Impacts of toxic stress
- Disruption of brain another organ and metabolic systems (especially during sensitive periods of development)
- Damage to regulation of these systems.
- Leads to chronic mental health illnesses.
- High toxic stress and pre-bedtime cortisol elevation changes brain volume reduction and disruption of protective myelin growth
- Inhibit neurogenesis of the hippocampus
- Effects on the Amygdala, PFC and anterior insula
Impacts of stress overload on brain
- Toxic stress inhibits hippocampus and contextual learning.
- Difficulty discriminating between dangerous situations and safe ones.
OFC PFC develops either to promote vigilance for danger or potential threat
Normally involved in regulating impulses and moods.
- Poor set shifting and mentalising
- Leads to poor mental regulation/impulses and less able to engage in thoughtful planning.
What are epigenetics?
Environmental influences that shape the individual -
- Environmental influences changing how genes are expressed.
- Change in methylation patterns of DNA
Stressors have different effects of gene expressio
What is an exposome?
Captures the essence of nurture; external forces acting upon genome throughout lifepsan.
- Environmental factors comprising the exposome include:
- Where one lives
- What one eats
- The quality of the air one breathes
- One’s social interactions and relationships
- One’s lifestyle choices
What are some epigenetic modifications?
- Cannot reverse epigenetic modifications
- Recovery from earlier experiences is possible by redirecting gene expression to compensate what happened.
- Recovery is possible - plasticity.
what is allostasis?
turning on physiological response when needed and turn off when stressor is over.
What is telomeres and diease?
- Associated with accelerate aging and disease
- Chronic stress contributes to shortening telomeres.
what are the impacts of deprivation?
- Resources impacts ability to bounce back from stress.
- Creates a divide in those who have not
- Leads to significant health difficulties
- Less resources for management.
how does anxiety develop in adolescents
- Large levels of stress can induce anxiety disorders
- Young children report more physiological signals of anxiety
- With puberty they develop ability to name feelings and identify anxiety cognitions.
interventions being explored to reduce mental health issues in adolescents:
- Family Based Interventions
- Stress Reduction aimed at adolescents
- Programs that teach adolescents to cope with stress during the transition from elementary to middle school
- Workshops on what stress is, how the body reacts to it and problem focused methods for coping
- Reduce glucocorticoid levels and reductions in depression symptoms in adolescents with high levels of anger