Study Notes on Disorders of Trauma and Stress

CHAPTER 5: Disorders of Trauma and Stress

Overview of Chapter Topics

  • Vulnerable Disposition (2019, Emma Prempeh)
  • Major themes:
    • Stress and Arousal: The Fight-or-Flight Response
    • Acute and Posttraumatic Stress Disorders
    • Triggers for Acute and Posttraumatic Stress Disorders
    • Development of Acute and Posttraumatic Stress Disorders
    • Treatment of Acute and Posttraumatic Stress Disorders
    • Dissociative Disorders
    • Dissociative Amnesia
    • Dissociative Identity Disorder
    • Theories on Dissociative Amnesia and Dissociative Identity Disorder
    • Treatment of Dissociative Amnesia and Dissociative Identity Disorder
    • Depersonalization-Derealization Disorder

Understanding Trauma and Stress

Case Study: Army Corporal Xavier Jackson

  • Background Information:

    • 28 years old, served two tours in Afghanistan
    • Grew up in economically unstable household in Baltimore
    • Experienced mother's death at age 5; raised by father with two brothers in a small apartment
    • Known for optimism and cheerfulness, resisted pessimism in others
    • Motivated to join the army for financial reasons and desire for control

  • Service Experience:

    • Beloved by peers, mentored fellow Black soldiers
    • Received commendation for bravery in combat situations (evacuating wounded soldiers)
    • Initially happy until devastating attack occurred

  • Traumatic Incident:

    • Severe leg injury from explosives, two comrades killed
    • Hospitalization marked by increasing irritability and critical views on military strategy
Post-Service Changes:
  • Mental and Emotional Toll:
    • Notable behavioral changes upon return: anxiety, anger, isolation
    • Signs of psychological issues:
    • Nightmares, intense fear, hyper-specific stress responses (e.g., reaction to loud noises)
    • Disconnect from family and friends
    • Thoughts of his wartime comrades’ deaths versus his survival
    • Harmful ideation
Support and Seeking Help:
  • Sarah, his wife, prompts him to seek help after observing disturbing behaviors.
  • Sessions with a therapist arranged via videoconference.

Defining Stress

  • Stress defined as:
    • Stressor: An event that creates demands.
    • Stress Response: The person’s reactions to these demands.
Types of Stressors:
  • Annoying Hassles: e.g., traffic
  • Turning-Point Events: e.g., graduation, marriage
  • Long-Term Problems: e.g., poverty, discrimination, health issues
  • Traumatic Events: e.g., accidents, assaults, disasters
Key Insights on Stress Responses:
  • Individual interpretation and reaction to stressors can vary greatly
  • Coping resources significantly determine stress response effectiveness (Chu et al., 2022; Lazarus & Folkman, 1984).

Psychological Disorders Related to Stress

  • Stress reactions can lead to or exacerbate psychological disorders:
    • Anxiety disorders, depression, schizophrenia, etc.
  • DSM-5-TR categorizes trauma and extraordinary stress as triggers for specific disorders:
    • Acute Stress Disorder
    • Post-Traumatic Stress Disorder (PTSD)
    • Dissociative Disorders
Features of Trauma- and Stressor-Related Disorders
  • Severe symptoms: heightened arousal, anxiety, mood issues, memory problems, and behavioral disturbances.

Exploring Arousal and the Fight-or-Flight Response

Biological Mechanisms of Arousal
  • Hypothalamus: Trigger point for arousal
    • Releases neurotransmitters during perceived danger
  • Activation Paths:
    • Autonomic Nervous System (ANS)
    • Endocrine System
Autonomic Nervous System (ANS) Explained:
  • Definition: Extensive nerve network linking the central nervous system to body organs
    • Controls involuntary activities: heartbeat, blood pressure, respiration
  • Components:
    • Sympathetic Nervous System: Increases arousal
    • Parasympathetic Nervous System: Decreases arousal to return to norm
Detailed Mechanism of Stress Response
  • Fight-or-Flight Response Interactions:
    • Sympathetic division activates to accelerate physiological responses (e.g., increased heart rate via direct stimulation of the heart).
    • Neurotransmitters like epinephrine (adrenaline) and norepinephrine (noradrenaline) are released from adrenal glands, enhancing arousal responses.
Hypothalamic-Pituitary-Adrenal (HPA) Axis
  • Activation of the HPA axis leads to secretion of Adrenocorticotropic Hormone (ACTH): stimulates adrenal cortex to release corticosteroids (e.g., cortisol) for widespread arousal.
Summary of Arousal Reactions
  • Varied individual responses to stressors based on personal perception and experience of threats
    • Examples: Flying might be terrifying for some, yet mundane for others.

Illustrations of the Stress Experience

  • Fig. 5-1: Autonomic Nervous System Overview
  • Fig. 5-2: HPA Axis Process

Therapeutic Considerations in Difficult Cases

  • Importance of interpreting and validating experiences of trauma and stress in treatment settings

Note: The content above captures detailed descriptions, processes, and explanations involved in the study of trauma and stress disorders, established through the case study of Xavier Jackson and scientific theories surrounding physiological responses to stress.