19/10 Flashcards
What is Parkinson’s
a neurodigenerative disorder characterised by both motor and non-motor symptoms caused by a lack of dopamine in the substantia nigra
What is the role of dopamine
Inhibitory neuron that coordinates fine muscle movement of the skeletal muscles
Parkinson’s main motor symptoms
Tremors, muscle rigiditiy, slowness of voluntary movement and postural instability
Parkinson’s non-motor symptoms
Increased sensitivity to temperature, fatigue, depression, anxiety, slowness of thinking and impaired decision making
Functions of medications used to treat Parkinson’s
Can be converted into dopamine by neurons or mimic dopamine
GAS 1
Alarm reaction
- immediate response
- shock and counter-shock
Shock
- occurs when the person first becomes aware of the stressor
- body acts as if it is injured and goes into a temporary state of shock
Counter-shock
- quick rebound
- sympathetic nervous system is activated (FFF)
- body becomes ready to deal with the stressor
GAS 2
Resistance
- maximises resources to cope and adapt
- all unnecessary processes shut down
- cortisol is released into the bloodstream
GAS 3
Exhaustion
- occurs when the stressor is unable to be dealt with
- resources for coping are very weak/nonexistant
- increased vulnerability to physical and mental disorders
GAS 3
Exhaustion
- occurs when the stressor is unable to be dealt with
- resources for coping are very weak/nonexistant
- increased vulnerability to physical and mental disorders
GAS strengths
- further understanding of the links between stress and disease
- identifies biological processes associated with stress
- explains potentially detrimental effects of the adaptation process
GAS weaknesses
- ‘one size fits all model’ that assumes each person’s response is the same
- does not take cognitive aspects of stress into account
- results were primarily based on animals
Transactional method of stress and coping
an encounter between an individual and their internal environment
Primary appraisal
the assesment of the relevance of a stressor to a particular person