Midterm - History & Concepts Flashcards
Who is Rene Descartes and his contribution?
- 17th century French Philosopher.
- Dualism: “Non-physical” soul/mind separate from the physical body.
- Soul/Mind governs behavior through a point of contact, such as the pineal gland.
Who is Robert Hooke and his ideals?
- 17th century engineer.
- Talked about Load, Stress, and Strain.
- Load = demand placed on a structure
- Stress = the area affected by the demand
- Strain = change in form that occurs because of the interaction between the load and stress
- Body as a “machine” that is subject to wear and tear.
What did Lazarus quote on in relation to Robert Hooke?
“Stress is an external demand placed on a bio-social-psychological system”.
In the 18th century, what did “passions” refer to?
- Nerves, vapors, hysteria.
2. Used to explain different diseases (1/3 of all diseases)
What was the general fear in the 19th century about the human nervous system?
That it was ill adapted to cope with the increased complexity of modern life. (Wozniak, 1992)
Who was George Beard and his contribution?
- 19th century American physician.
- Suggested neurasthenia: an overload of the nervous system due to 19th century demands of life. (nervous exhaustion characterized by anxiety, unexplained fatigue, and irrational fears…. ie. STRESS)
Who was Claude Bernard and his ideas?
- 19th century French physician.
- Milieu intérieur: internal environment of living organisms must remain fairly constant in response to changes in the external environment.
- Survival is determined by consistent maintenance of the internal environment via continual compensatory reactions.
4 main facts from history and concepts of stress?
- Interactions between mind and body.
- Life leads to wear and tear on body.
- Concept of steady state (milieu interieur).
- Impact of pace of life on body and mind.
Who was Walter Cannon and his contribution?
- 20th century American physiologist.
- Developed concept of Homeostasis from the idea of milieu interieur (Claude Bernard).
- First used the term stress to refer to external factors that disrupted homeostasis.
Who coined the term “fight or flight”?
Walter Cannon
What is the Cannon-Bard theory?
Emotional experience and emotional expression are parallel processes with no direct causal relation.
EG. Autonomic responses are independent of our feelings. (Heart racing and fear = different)
What is Bi-directional feedback?
There is feedback between the systems of mind-body/body-mind.
Who is Hans Selye and what did his work lead to?
- “Syndrome of just being sick” all patients were tired, no appetite, etc.
- During his experiment with rat injections, noticed that any challenge/disturbance to homeostasis resulted in a consistent pattern or response.
Who developed the General Adaptation Syndrome theory and what is it?
- Hans Selye
- 3 phases of stress:
- Alarm reaction: body shows change to stressor, resistance is diminished, could result in stress.
- Stage of Resistance: Resistance acquired if exposure continues, alarm reaction disappears and resistance goes above normal.
- Stage of exhaustion: long-term exposure of same stressor = depletion of adaptation energy = signs of alarm reaction reappear, but now irreversible and individual dies.
What is the typical triad of the alarm reaction observed?
- Adrenals got bigger and darkened.
- Thymus shrunk
- Group of 3 lymph nodes shrunk
(Stomach ulcers were also observed in alarmed rats).