Cheshire City Council
(1995) definition of
critical incidents
Charged with profound
emotion which may
involve serious
injury/death
Generate a high level
of immediate or
delayed emotional
reaction
Involve serious threat or extremely
unusual circumstances
Attract unusual attention from
the community or media
Surpass an individual, group,
or organisation's normal
coping mechanisms
Post-traumatic Stress (PTS) = "the development of
certain characteristic symptoms following a
psychologically distressing event which is outside the
range of normal human experience" DSM (1987)
Examples from Parkinson (1993): flashbacks/intrusive
memories, headaches, difficulty concentrating, feeling
guilty/worthy of blame, feeling detached from others
Reactions to incidents vary depending on
age, experience, personality, nature of
the incident, and degree of involvement
(McNally, 2003)
PTS is "a normal reaction of normal people to events
which, for them, are unusual or abnormal" (Parkinson,
1993). Is it?
Post-traumatic stress disorder (PTSD) occurs when symptoms of PTS
emerge later, persist or intensify long after the event (i.e. more than 6
weeks), and/or disrupt normal living
DSM crtieria for adults and children over 6 years involves 3
aspects: re-experiencing; avoidance; arousal (DSM IV) or
negative cognition and mood (DSM V)
For younger children, symptoms
differ and may include reenacting,
repetitive play, and
emotional/behavioural difficulties
"The vast majority of people
exposed to serious traumatic
events do not develop PTSD"
(McNally, 2003)
More than 90% had begun to
re-experience some level of anxiety
within 5 hours of rescue (Wiesaeth,
1983)