Biopsychosocial Model, Protective/Perpetuating Factors, Bronfenbrenner Ecological Model, and Application to Youth Delinquency

Biopsychosocial Model: Perpetuating and Protective Factors

  • Perpetuating factors by domain

    • Biological perpetuating factors
    • Chronic illness and ongoing health issues
    • Cognitive deficits that affect functioning or coping
    • Medication adjustments or tolerance issues
    • Ongoing substance use
    • Psychological perpetuating factors
    • Beliefs about the self (self-view) and beliefs about others/world
    • How individuals fit within larger contexts or systems
    • Poor coping behaviors that maintain symptoms or disorders
    • Self-destructive behaviors that help maintain the disorder (or worsen functioning)
    • Social/Cultural perpetuating factors
    • Lack of social support
    • Ongoing life transitions and instability
    • Food insecurity and material stress
    • Any ongoing stressor that remains unresolved; persistence matters
    • Note on clinical perspective
    • Patients may present with one aspect (e.g., biological) but other proximal causes are often at play; clinicians should probe holistically (e.g., precipitating, perpetuating, and protective factors across domains)

  • Positive, protective factors (protective factors):\

    • Biological protective factors
    • Good overall health
    • Higher intelligence or cognitive abilities that aid navigation of stress
    • Psychological protective factors
    • Positive sense of self during hard times
    • Effective coping skills
    • Self-awareness: recognizing strengths and weaknesses; using this awareness to seek help when needed
      • Self-awareness: not just recognizing strengths, but acknowledging weaknesses to seek resources rather than becoming defensive
    • Social protective factors
    • Strong familial relationships; the idea of chosen family or supportive friends
    • Availability of at least one supportive person who has a positive impact
    • Economic/Access protective factors
    • Financial resources that enable access to services (medical, mental health, etc.)
    • Caution: money is helpful but not the sole protective factor; it should not be over-relied upon

  • Practical takeaway for clinicians and students

    • Always assess across biological, psychological, and social domains
    • Consider precipitating and perpetuating factors in a holistic way
    • Recognize thirdhand influences (e.g., thirdhand smoke in asthma) as perpetuating factors in medical presentations
    • Be mindful of environmental and contextual factors that can amplify risk or resilience

  • Application example: a biopsychosocial article on delinquency (Blankenstein et al., 2024)

    • Research question: Is antisocial behavior the result of interactions among biological, psychological, and social factors?
    • Biological measures discussed
    • Resting heart rate, respiration rate, basal cortisol levels associated with increased aggression and conduct problems
    • Psychological constructs discussed
    • Psychopathic traits: callous and unemotional traits; lack of affective empathy
    • Cognitive empathy may be present, but affective empathy is limited
    • Aggression profiles: reactive aggression (in response to provocation) and proactive aggression (for gain or escalation)
    • Under-arousal vs. over-arousal of the stress system
      • Under-arousal: insensitivity to stress leading to risk-taking and sensation-seeking
      • Over-arousal: heightened stress reactivity leading to reactive, impulsive aggression
    • Social/environmental context
    • Socially adverse circumstances (e.g., maltreatment, impoverished environments, marginalization, substance abuse history) can interact with biology/psychology to influence behavior
    • Group profiles observed in the study
    • Bio-psychopathic group: high testosterone, low empathy; high risk of violent delinquency largely unaffected by social/environmental factors
    • Biological reactive group: low testosterone, high empathy; high reactive aggression; risk amplified by low SES, physical abuse, or substance abuse
      • In higher-risk environments (e.g., physical danger, marginalization), violent delinquency can be more likely
      • In lower-risk environments, the path may skew toward nonviolent offenses
    • High-problem group: typical testosterone; very poor psychological functioning
      • Experiences of sexual and emotional abuse increase probability of nonviolent offending; neglect increases probability of violent offending
    • Low-problem group: typical testosterone; similar environmental/psychological risk profile but without pronounced biological predisposition
      • Environmental/psychological factors drive manifestations of offending
    • Interpretations and implications
    • Different profiles suggest tailored interventions
      • For bio-psychopathic group: intervening through mental health supports and addressing core psychopathic traits is complex; safety and risk management are key
      • For bio-reactive group: improve emotional regulation and coping; strengthen protective social/environmental supports to reduce reactive aggression
      • For high-problem group: mental health treatment and safeguarding against abuse; family and caregiver support to reduce overall risk
      • For low-problem group: focus on strengthening psychological functioning and addressing environmental risk factors to prevent escalation
    • The role of mental health services, family resources, and maltreatment prevention as primary intervention targets for high-problem group
    • Ethical and practical cautions: such profiling is not a tool for labeling individuals; it informs prevention and treatment planning while respecting individual rights and avoiding stigmatization

  • Bronfenbrenner’s Ecological Model (contextual framework used in class)

    • Core idea: developmental variability arises from interactions between the individual and multiple environmental layers
    • Center: the child or individual with their own characteristics (biology, cognition, identity, etc.)
    • Microsystem (immediate environment)
    • Direct contact environments: family, school, peers, neighborhood, church, etc.
    • Examples: a three-year-old in preschool, home, church nursery, favorite playground
    • Mesosystem (interactions between microsystems)
    • Interconnections among microsystems; how one microsystem affects another (often via relationships and expectations)
    • Example scenario: parent-child relationships and the preschool classroom influencing child behavior; if a parent says no, teachers’ expectations may shift and vice versa
    • Exosystem (settings the child does not directly engage with but that affect them)
    • Social and economic settings: parents’ workplace, extended family dynamics, media influences
    • Example: underpaid/overworked parent returns home stressed, influencing parenting and child behavior
    • Macrosystem (cultural and societal context)
    • Broad cultural values, laws, economic systems, social norms
    • Example: federally mandated parental leave policies (illustrative contrast between countries) and how policy shapes family life
    • Chronosystem (changes over time)
    • Major historical events, life transitions, environmental changes that alter the developmental context
    • Examples provided: puberty timing (everyone experiences puberty between roughly 9–16 but varies; timing affects outcomes), parental divorce timing (early vs. later in childhood), first-child timing (early vs. late), major events (economic recessions, pandemics, 9/11) and their differential impact
    • Techno subsystem (not in core text but discussed in lecture)
    • Technology environments as their own contextual layer; digital interactions shape development
    • Examples: increased screen time in children; use of iPads in early education; “COVID babies” and the long-term implications of digital environments
    • Integrated takeaway
    • Variability is not solely due to genetics; it emerges from interactions across physical, social, and cultural environments
    • The model emphasizes holistic assessment across multiple layered systems to explain and address developmental outcomes

  • Additional considerations and practical ties

    • The clinician’s takeaway
    • In real-world practice, patients often present with a single dimension; clinicians should probe for other related factors to avoid missing key precipitating or perpetuating influences
    • Example: asthma perpetuating factors like thirdhand smoke exposure may be overlooked if one focuses only on airflow limitation
    • The value of holistic assessment for students entering medical/health professions
    • Understanding that patient lives are complex and that treatment should consider multiple interacting factors rather than a single cause
    • Ethical considerations and limitations
    • Avoid simplistic labeling of individuals based on group risk profiles
    • Use models to inform prevention, early intervention, and supportive care while respecting autonomy and privacy

  • Quick reference to formulas and concepts (LaTeX-ready)

    • Biopsychosocial interaction (conceptual):
    • R=f(B,P,S,BoP,BoS,PoS,BoPoS)R = f(B, P, S, B o P, B o S, P o S, B o P o S)
    • This emphasizes that risk (R) arises from biological (B), psychological (P), and social (S) factors and their interactions
    • Under-arousal and over-arousal concepts (described qualitatively in class) can be summarized as:
    • Under-arousal: decreased biological stress responsiveness leading to sensation-seeking behaviors
    • Over-arousal: heightened biological stress responsiveness leading to reactive, impulsive responses
    • Resting physiological markers mentioned: extRestingheartrate,extRespirationrate,extBasalcortisolext{Resting heart rate}, ext{Respiration rate}, ext{Basal cortisol} as correlates of aggression/conduct problems (no numerical values provided in transcript)

  • Connections to real-world relevance and ethics

    • Understanding protective factors helps in designing resilience-building programs (strengthening social supports, improving family functioning, aiding access to services)
    • Recognizing the role of environment in delinquency emphasizes the importance of community and policy-level interventions (economic supports, parental leave, access to mental health care)
    • Ethical practice requires avoiding determinism; use the model to tailor interventions, empower individuals, and advocate for resources rather than stigmatize groups

  • Summary takeaways for exam preparation

    • Perpetuating vs. protective factors span biological, psychological, and social domains
    • Bronfenbrenner’s Ecological Model provides a layered framework for understanding how environment shapes development
    • The Blankenstein et al. (2024) study illustrates how biological predispositions and psychological traits interact with social contexts to influence types of delinquency, suggesting targeted interventions
    • In clinical and educational settings, adopt a holistic, systems-oriented approach, and recognize time-based changes (chronosystem) and technological influences (techno subsystem) as relevant factors

  • Possible exam-style prompts you should be able to answer

    • Explain how a biological protective factor might mitigate risk in a high-stress environment, with examples
    • Describe the four groups identified in the Blankenstein et al. study and discuss how environment moderated risk in each group
    • Outline Bronfenbrenner’s ecological model and provide concrete classroom or clinical examples for each level
    • Discuss why protective factors are not merely the absence of risk factors but active resources for functioning amid hardship

  • Connections to broader themes

    • Integrates foundational principles of health psychology, developmental psychology, and social determinants of health
    • Exemplifies how research translates into practical prevention and intervention strategies across micro-level interactions to macro-level policy