Outline 15 Stress and Post Traumatic Stress Disorder

Outline 15 Stress and Post Traumatic Stress Disorder -...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Outline 15 Stress and Post Traumatic Stress Disorder (PTSD) Book Chapter Readings for this Outline: Chapter 17, Sections 17.3-17.5 I. Stress is both good and bad Good o Increased energy and attention in response to emergencies or urgent situations e.g., enhanced performance during tests Bad o Effects of severe and/or chronic stressors And onslaught of several stressors at once e.g., war, famine, death, abuse, lack of control in high pressure situations II. Seyle’s General Adaptation Syndrome: Alarm o Heightened activation of sympathetic nervous system--> Increased epinephrine (adrenalin) and norepinephrine o Hypothalamus releases corticotropin releasing hormone (CRH) --> Pituitary releases adrenocorticotropic hormone (ACTH) --> Adrenal glands secrete glucocorticoids --> widespread effects in brain and body o Glucocorticoid receptors are found in the brain and are particularly abundant in the hippocampus Resistance o Body resources are mobilized to deal with and terminate the stressor i.e., flight or fight response o In a normal stress response, the individual returns to normal after the resistance stage. With unrelieved stress, the body enters stage 3. Exhaustion o anxiety, major disruption of bodily and brain systems, possible death Chronic stress is related to several health problems: Heart disease, Diabetes, Ulcers, Growth problems, Compromised immune system Stress and the cardiovascular system o During stress there is: Increased heart rate (blood moves faster and with more force) Constriction of major arteries (like a garden hose) increased blood pressure o Short-term consequences Facilitates fight-or-flight response Adaptive for the survival of the species o Long-term consequences- heart disease How does chronic stress heart disease? Blood vessels more to prone to damage due to increased blood pressure
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

Outline 15 Stress and Post Traumatic Stress Disorder -...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online