Slides in this set
Transactional model of stress
· Defines stress as an imbalance between
perceived demands on an individual & their
perceived coping resources.
· Primary appraisal The person assesses a
situation to determine potential threats.
· Secondary appraisal The person assesses
their ability to cope with a threatening
SAM & HPA axis
· The biological reaction of the body in
response to a stressor (anything that causes
ANS Pituitary gland
Adrenal medullar ACTH
Adrenalin & noradrenalin Adrenal cortex Liver releases energy
Fight or flight response…read more
The general adaption syndrome of
· Prolonged stress can cause illness as you
become exhausted, when under acute stress,
the SAM & HPA axis kick in.
· Exam link `Discuss the G.A.S model of stress'…read more
Research Stress & the immune
· Kiecolt Glaser (1984) Her group used 75 medical
students preparing for exams, as an index of immunity
they used natural killer cells. Measures of NK cells
were recorded in periods of high & low stress. She
concluded that stress reduces immune function,
making people more vulnerable to illness.
Evidence to support the link between stress & illness.
· Lacks ecological validity as study only used students.
· No manipulation of IV so no cause & effect relationship
can be determined.…read more
Research measuring stress
· Rahe (1970) Investigated the link between
life changes & illness, using 2500 male US
navy personnel, to create an illness score.
Rahe concluded that there was a positive
correlation between life events & the
development of stress related illnesses.
· Evaluation Gender and culturally biased.
· No manipulation of IV so cause & effect cant
be determined.…read more