Flashcards in Stress Deck (84)
What is meant by 'fight or flight'?
The bodys inbuilt response to stressful situations
What is the purpose of the fight or flight response?
Prepares the body to respond
Name a study into the fight or flight response?
How does the fight or flight response prepare the body to respond to stressful situations?
Short term changes mobilise for activity
What is the fight or flight response triggered by?
What catecholamines trigger the fight or flight response?
What does adrenaline do in the fight or flight response?
Increases heart rate, so increases energy available in muscles
What is the physiological response to stress?
Increased oxygen availability Enhanced mental functioning Increased fuel availability Preparation for tissue damage/fatigue Conservation of energy resources Enhanced physical functioning
How is oxygen availability increased in stress?
Increased respiratory rate Increased haematocrit
What mental functions are enhanced in stress?
Sensory awareness Alertness
How is fuel availability increased in stress?
Liberation of glucose Protein breakdown Insulin resistance
Why does insulin resistance increase fuel availability?
Because it increases blood sugar, so more fuel available for responses
How is the body prepared for tissue damage/fatigue in stress?
Fluid conservation Blood clotting Endogenous analgesia Immune and inflammatory response
How are energy resources conserved in stress?
Non-essential systems such as the digestive system and sexual response are reduced
How is physical functioning enhanced in stress?
Cardiac output BP Sweating Muscle responsiveness
What effect does stress have on performance?
A bit of stress can improve performance to a point, but if too stressed, can be detrimental
Why is too much stress detrimental to performance?
It can make a person chaotic and disorganised
What condition can be caused by long term stress?
General adaptation syndrome
When was General Adaptation syndrome discovered?
In a study by Selye in 1956
What happens in General Adaptation Syndrome?
Alarm induces fight or fight Can't maintain this state Over days/weeks/months of stress, body is still performing at increased homeostatis levels, but body adapts, leading to resistance
Resistance can't be maintained, leads to exhaustion
Exhaustion is a state of physiological/psychological exhaustion Can get initial stress symptoms again Chance of physiological damage and death
What is the provlem with the stress response?
Stress response is adapted for survival advantage, as hunter-gatherers are more likely to be exposed to acute stressores, however modern life has a change in sorts of stressors
What sorts of stressors are faced in everyday life?
Frequent daily hassles and chronic stressors
What is the problem with the type of stressors faced in modern life?
The physiological response is ill suited to long term stress
What are the limitations of a purely physiological model of stress?
Individual differences Context
How can individual differences and context affect stress?
An individual may have different things that make something more or less stressful
Who proposed the transitional model of stress?
Lazarus and Folkman, 1984
How does the transitional model of stress define stress?
As the perception of interaction with individual person and what's going on around them
What does a person do in the transitonal model of stress?
Demands Resources Constantly appraises this
What can demands be?
Life events Daily hassles Chronic stressors