LEARNING
OUTCOMES
1.What is PTSD???
2.Who is at risk for PTSD???
3.When does PTSD start???& How
long does it last???
4.Symptoms
5.Consequences
Physiological outcomes
Psychological outcomes
Self-destructive behaviors
1.Treatment
Psychotherapy
Pharmacotherapy
INTRODUCTION
Disorder driven by pathogenic memories of past
danger.
Symptoms must last for more than a month
Acute stress disorder, which occurs earlier than
PTSD
PTSD is an anxiety
disorder that develops in
response to a stressful
event or situation of
exceptionally threatening
or catastrophic nature
What is PTSD?
EPONYMS OF PTSD
Civil War-Irritable heart
World War I-shell shock
/Effort syndrome
World war II – combat stress
syndrome
Vietnam War- brought the
concept of PTSD.
Gulf war syndrome
PTSD entered the DSM-III in
1980
Traumatic events that may trigger
PTSD include:
violent personal assaults
Sexual assault
Physical attack
Abuse
Stabbing
natural disasters
Accidents
Military combat.
Traumatic events
COMMON FEATURE SHARED BY ALL
SYNDROMES
Fatigue, fainting
Shortness of breath,
Palpitations,
Headache, dizziness,
Excessive sweating,
Disturbed sleep,
Difficulty in
concentration
Forgetfulness
EPIDEMIOLGY
Lifetime prevalence -8 percent in general population
5 to 15 percent -subclinical forms of the disorder.
Among high-risk groups -5 to 75 percent.
10 to 12 percent among women
5 to 6 percent among men.
Higher in women, single, divorced, widowed, socially
withdrawn, of low socioeconomic level
Sexual assault-higher impact
Sudden unexpected death of
a loved one
People with military combat
experience or civilians who have been
harmed by war
People who have been raped, sexually
abused, or physically abused
People who have been involved in or
who have witnessed a life-threatening
event
People who have been involved in a
natural disaster, such as a tornado or
an earthquake
Who is at risk for PTSD??
RISK FACTORS FOR PTSD AMONG
THOSE EXPOSED TO TRAUMA
Female, neuroticism
Lower social support
Lower IQ
Pre-existing
psychiatric illness
Family history of
mood, anxiety, or
substance abuse
disorders
Neurological soft signs
PREDICTORS
Previous exposure to trauma
Peritraumatic responses
Negative interpretations of one's acute responses
Borderline, paranoid, dependent, or antisocial
personality disorder traits
Presence of childhood trauma
Inadequate family or peer support system
Recent stressful life changes
Recent excess alcohol intake
GENETICS
1/3rd of variance in
symptoms is genetic
Trauma exposure-little or
no effect on measures of IQ
&neurocognitive
functioning
Similarity in the test scores
between co-twins implies
genetic influence on
cognitive performance
Above average cognitive
ability -protect
PSYCHODYNAMIC FACTORS
Trauma has reactivated a previously quiescent, yet
unresolved psychological conflict
The subjective meaning of a stressor may determine its
traumatogenicity.
Traumatic events can resonate with childhood traumas.
Inability to regulate affect can result from trauma.
Somatization and alexithymia may be among the after
effects of trauma.
Common defenses -denial, minimization, splitting,
projective , dissociation, and guilt
Mode of object relatedness involves projection and
introjection
COGNITIVE FACTORS
Affected persons cannot process or rationalize the
trauma that precipitated the disorder.
They continue to experience the stress and attempt to
avoid experiencing it by avoidance techniques.
Less decline in vividness, emotional intensity, and
accuracy of traumatic memories.
Exhibit difficulty retrieving specific memories
Difficulties of attentional control
EMOTIONAL STROOP PARADIGM
Delayed naming of
the word's colour
Heightened stroop
interference for
trauma words in
PTSD
FEAR CONDITIONING
MOWRER'S TWO-FACTOR
CONDITIONING THEORY
Traumatic stimuli (UCS) fear&arousal
UCS+CS fear response stimulus
generalization variety of stimuli become triggers
avoidance of CS negative reinforcement by
operant conditioning prevents extinction of
conditioned fear responses maintains the problem.
NORADRENERGIC SYSTEM
Nervousness, increased blood
pressure and heart rate,
palpitations, sweating,
flushing, and tremors
-symptoms of adrenergic
drugs.
Increased 24-hour urine
epinephrine concentrations in
veterans
Increased urine
catecholamine concentrations
in sexually abused girls
Platelet alpha
2
- and
lymphocyte beta 2 adrenergic
receptors are downregulated
STRUCTURAL CHANGES
Lower average volume
in the hippocampal
region
Structural changes in
the amygdale
SYMPTO
MS
The symptoms of PTSD can start
after a delay of weeks, or even
months. They usually appear
within 3 months after the
traumatic event.
Some people get better within 6
months. Others may have the
illness for much longer.
When does PTSD start??
& How long does it last???
Re-experiencing the event through flashbacks or
nightmares
Avoiding people, places or thoughts that bring
back memories of the trauma
Feeling angry & unable to trust people
Social withdrawal
Numbness
Insomnia
Lack of concentration
Symptoms
CONSEQUEN
CES
1)Physiological outcomes
2)Psychological outcomes
3)Self-destructive behaviors
Neurobiological changes (alterations in
brainwave activity and in functioning of processes such
as memory and fear response)
Psychophysiological changes
Hyper-arousal of the sympathetic nervous system,
Sleep disturbances
Increased neurohormonal changes that result in
increased stress & depression
Headache
Stomach or digestive problems
Dizziness
1)Physiological outcomes
Depression
Other anxiety disorders (such as phobias,
panic, and social anxiety)
Splitting off from the present
Eating disorders
2)Psychological outcomes
Low self esteem
Alcohol and drug abuse
Suicidal attempts
Self-injury
Risky sexual behaviors
leading to unplanned
pregnancy or STDs, including
HIV
3)Self-destructive behaviors
TREATME
NT
PTSD is treated by a variety of forms of psychotherapy
(talk therapy) and pharmacotherapy (medication).
There is no single best treatment, but some treatments are
quite promising, especially cognitive behavioral therapy
(CBT).
Treatment
COGNITIVE BEHAVIORAL
THERAPY (CBT)
A Cognitive Behavioral Therapy (CBT) is a
psychotherapy based on modifying beliefs and
behaviors, with the aim of influencing disturbed
emotions.
CBT includes a number of
techniques such as:
I.Cognitive restructuring
II.Exposure therapy
III.Eye movement desensitization
and reprocessing (EMDR)
Cognitive restructuring aims at replacing
dysfunctional thoughts with more realistic &
helpful ones.
e.g.
“I’ll never be normal again..I am gonna die”
“I’ll get better..It will just take time”
Or “I feel scared..But I am safe”
I. Cognitive Restructuring
In exposure therapy your goal is to
have less fear about your
memories.
By talking about your trauma
repeatedly with your therapist,
you'll learn to get control of your
thoughts and feelings about the
trauma.
You'll learn that you do not have to
be afraid of your memories
anymore.
II. Exposure Therapy
EMDR is a new therapy for PTSD.
In EMDR, patients are instructed to focus on the
traumatic memory while they visually track something
that is moving from side to side (such as the therapist’s
finger).
Thus, the therapist supplies positive emotional beliefs
to replace the negative ones.
III. EMDR
MEDICATION
The use of medication in addition
to psychotherapy has been shown
to be beneficial in the treatment of
PTSD.
The most widely used drug
treatments for PTSD are the
selective serotonin reuptake
inhibitors (SSRIs), such as Prozac
& Zoloft
N.B. Drug trials for PTSD are still
at a very early stage