
A Comprehensive Overview of
Post-traumatic Stress Disorder
Gerald Lewis, Ph.D.
Introduction
What is now referred to as Post-traumatic Stress Disorder
(PTSD) has been around since recorded history under many different
designations and descriptions. As recently as the 1800s it was noted
that people involved in railroad accidents had emotional distress
that was thought to be caused by injury to their spine and were
diagnosed with railroad spine. Even in literature, those who have
Stephen Crane’s “Red Badge of Courage,” or “All Quiet On the Western
Front” will clearly be able to see all of the signs and symptoms
of PTSD as present in these literary accounts of combat from the
American Civil War and World War I.
During the U.S. Civil War, soldier's heart or irritable
heart was the name given to a syndrome similar to today's Post Traumatic
Stress Disorder by physician Jacob DaCosta. 1 He later described
this syndrome in his paper in 1871 on Irritable Heart. From this,
“cardiac neurosis” was the label assigned, as it was thought that
the heart was the source of their emotional distress.
Other labels began to emerge through out the 20th
century as increasing numbers of soldiers seemed to be suffering
from emotional difficulties caused by the experience of combat. Shell
shock and combat fatigue came into vogue during the world wars along
with “combat neurosis” as it became clearer that this was an emotional
disorder precipitated by the extreme circumstances of warfare.
Clearly, combat veterans seemed to be the primary
group of individuals whose experience resulted in this “new” disorder. However,
as the field of psychology developed, it was becoming clearer that
even non-combatants were vulnerable to similar symptoms. Janet,
one of Freud’s earliest colleagues, described, “When people experience
vehement emotions their minds become incapable of matching their
frightening experience with existing cognitive schemes. As a result
memories of the experience cannot be integrated into personal experience
and are split off (dissociated).” (2) Freud noted that many of his
patients would describe dreams and “flashbacks” in which they were
sexually abused or traumatized. Due either to the times or his own
personal issues, he determined that these were not real events that
had occurred, but rather fantasies that the patient had about adults
and coined the theories of Oedipal conflict, penis envy and castration
anxiety along with the potentially misogynist notion that these
accounts of sexual mistreatment were primarily hysterical fantasies
of young woman. (3) One may argue that had Freud taken these recounted
events as reality rather than fantasy, the issues of sexual and
physical abuse may have received greater scrutiny many decades before
it did.
Later, the labels of rape trauma syndrome and battered
child syndrome were utilized to describe the emotional picture of
victims of these tragedies. However, it wasn’t until the 1970-80s,
that a clearer understanding of the impact of sexual mistreatment
on children developed and it was discerned that the symptomatology
of these victims looked very much like those of combat veterans. Thus,
PTSD first appeared in the DSMIII as a diagnostic label delineated
from other diagnoses and could be applied to a wide variety of individuals
who had experienced an intense and traumatic event in their lives. It
has now been more than 25 years and the field has grown to have
even greater understanding as to how PTSD differs from other diagnoses,
the etiology of the disorder, the biological factors and the other
types of experiences that may precipitate such a syndrome.
Diagnostic Criteria
PTSD is characterized by a specific group of symptoms
that set it apart from other types of psychological disorders. First
noted in the DSMIII and now in the DSMIV, PTSD is described as follows
(4):
Posttraumatic Stress Disorder (309.81)
The patient has experienced or witnessed or was confronted
with an unusually traumatic event or events that has both of these
elements: The event(s) involved actual or threatened death or serious
physical injury to the patient or to others, and The patient felt
intense fear, horror or helplessness
The patient repeatedly relives the event in at least
1 of these ways: -Intrusive, distressing recollections (thoughts,
images)
- Repeated, distressing dreams
- Through flashbacks, hallucinations
or illusions, acts or feels as if the event were recurring (includes
experiences that occur when intoxicated or awakening)
- Marked mental distress in reaction
to internal or external cues that symbolize or resemble the event.
- Physiological reactivity (such
as rapid heart beat, elevated blood pressure) in response to these
cues
The patient repeatedly avoids the trauma-related
stimuli and has numbing of general responsiveness (absent before
the traumatic event) as shown by 3 or more of:
- Tries to avoid thoughts, feelings or conversations
concerned with the event
- Tries to avoid activities, people or places
that recall the event
- Cannot recall an important feature of the
event
- Marked loss of interest or participation
in activities important to the patient
- Feels detached or isolated from other people
- Restriction in ability to love or feel other
strong emotions
- Feels life will be brief or unfulfilled (lack
of marriage, job, children)
At least 2 of the following symptoms of hyperarousal
were not present before the traumatic event:
- Insomnia (initial or interval)
- Irritability
- Poor concentration
- Hypervigilance
- Increased startle response
The above symptoms have lasted longer than one month.
These symptoms cause clinically important distress
or impair work, social or personal functioning.
Specify whether:
Acute. Symptoms have lasted less than 3 months
Chronic. Symptoms have lasted 3 months or longer
With Delayed Onset. The symptoms did not appear until at least 6
months after the event. Coding note
In children, response to the traumatic event may be
agitation or disorganized behavior. Young children may relive the
event through repetitive play, trauma-specific reenactment or nightmares
without recognizable content. The following is a brief(er) summarization
of the aforementioned symptoms of PTSD: The individual had to experience/witness
an intense event in their life in which they perceived that they
and/or others were in extreme danger.
Re-experiencing symptoms involves a sort of mental
replay of the trauma, often accompanied by strong emotional reactions. This
can happen in reaction to thoughts or reminders (triggers) of the
experience when the person is awake or… in the form of nightmares
during sleep. For children the re-experiencing may take the place
of reenacting the trauma in play, art, etc.
Avoidance symptoms are often exhibited as efforts
to evade activities, places, or people that are reminders of the
trauma. The avoidance may be hidden behind a defensive style, or
an anxiety disorder/phobic reaction.
Numbing symptoms are typically experienced as a loss
of emotions, particularly positive feelings. Alcohol or other drugs
may be used to facilitate the numbing.
Arousal symptoms reflect excessive physiological activation
and include a heightened sense of being on guard as well as difficulty
with sleep and concentration.
The symptoms must persist for over one month, cause
significant distress, and affect the individual's ability to function
socially, occupationally, or domestically.
“Simple” and “Complex” PTSD While PTSD is characterized
by the aforementioned symptoms, it is understood by mental health
professionals that there are two types of PTSD, “simple” and “complex.” Complex
PTSD (Disorder of Extreme Stress) is defined as the disorder that
results from long-term, on-going stress, prolonged trauma especially
that is experienced during childhood or adolescence. Usually it
is also characterized by disruptive environmental conditions and
colors the child’s total life experience. Examples of this would
be on-going physical or sexual abuse, severe neglect, growing up/living
in a war zone, etc. As will be discussed later in this paper, it
is believed that this type of experience may disrupt the child’s
normal development resulting in organic and hormonal changes that
can impact memory and emotions (See Biology of PTSD). For adults,
the same conditions would apply to the same events as well as being
imprisoned, tortured, in combat, etc. Simple PTSD is the result
of one single event that has occurred in the individual’s life and
is over. Examples, range from accidents, assaults, to being the
victim of an earthquake, tornado, etc. The event itself has closure
and the individual may return to a regular and stable life.
Not All Victims Of Trauma Develop PTSD While many
individuals who experience traumatic events may develop PTSD, it
is essential to note that not all become symptomatic to the point
where they would “qualify” for a diagnosis. Studies after WWII of
concentration camp survivors indicated that long-term extreme trauma
had severe biological, psychological, and social consequences…including
a diminished capacity to cope with both psychological and biological
stressors later in life. However, not all holocaust survivors had
PTSD.
In recent years, it seems that the Viet Nam war rocketed
the label of PTSD into the regular lexicon of America. Yet, only
about 15% of Viet Nam veterans suffer(ed) from long term PTSD.
In a study by Foa and Rothman with victims of rape,
94% had symptoms that reached the level of PTSD 1 week after the
assault. After two months, only 52% had symptoms at that level and
9 months later only 47% of the victims evidenced the diagnostic
criterion.
To summarize, “…the experience of traumatic events
is extremely common - for example, a random sample of young adults
living in urban Detroit found that the prevalence of trauma was
39% (Breslau et al., 1991). Second, only a percentage of people
exposed to a traumatic event go on to develop the picture of PTSD,
indicating the importance that vulnerability and resilience factors
play in the aetiology of the disorder. In the Detroit study, 23.6%
of those exposed to traumatic events had lifetime PTSD (Breslau
et al., 1991). Third, although only some of those exposed develop
PTSD, this disorder is nevertheless highly prevalent, with estimated
lifetime prevalence of up to 8% or 9% in the general population
of the United States (Davidson et al., 1991; Helzer et al., 1987;
Solomon and Davidson, 1987). In vulnerable communities and high-risk
groups, such as war veterans and rape victims, the incidence of
PTSD is far higher; 30% in war veterans (Kulka et al., 1990), 47%
of sexual assault victims (Rothbaum et al., 1992).” (5)
It is essential to remember that humans have a great
capacity for resiliency and self healing. To overdiagnose does an
injustice to the individuals who truly suffer from PTSD. Further,
when working in the legal arena, it is essential to be sure that
the plaintiff qualifies for a diagnosis that cannot be refuted by
the other side’s expert.
The Biology of PTSD
Until recently, the only way to look into the human
brain was to wait until the individual died, perform an autopsy,
remove the brain and take gross slices of tissue and look at them
under a microscope. This, along with animal studies, allowed for
only the most rudimentary observations. With the advent of new technologies
such as CAT and PET scans and MRIs, the human brain and its activities
may be viewed while the individual remains alive and the brain active. PTSD
has always been viewed as primarily a psychological disorder marked
by specific symtomatology. Now, studies indicate that there is a
significant biological component that may, in fact, be the cause
of these psychological symptoms. Although still in the early stages,
the findings are pointing to changes in both brain chemistry as
well as neuroanatomy. To simplify, the production of neurotransmitters,
(the chemicals that are produced in the brain and that keep the
brain working) seems to be disrupted by acute stress of a significant
level and duration. Further, there is evidence to suggest that parts
of the brain infrastructure may be underdeveloped as a result of
the types of events that result in complex PTSD. Further, these
parts of the brain are located in the limbic system which is thought
to be the seat of human emotion. Specifically, the amygdala and
the hippocampus are the areas that seem to be uniquely disquieted
by trauma.
When the brains of victims of PTSD are viewed by the
aforementioned technology, it appears as if these areas in the brain
are constantly “on” and unable to be regulated as in a normal brain. Thus,
intense emotions, hyperarousal, mood swings, agitation are thought
to be the result of this trauma to the brain development or even
just the brain chemistry. Further, there is evidence to suggest
that parts of the brain may shrink or develop abnormally as a result
of traumatic experiences. This may account for the often seen comorbidity
of substance abuse along with the myriad of other manifestations
of long term PTSD. (See Comorbidity) When working with PTSD victims,
I often use the metaphor of a computer that has received a virus
and thus experiences significant disruption and corruption of the
software. The longer the virus remains on board without “treatment,”
the greater level of impairment. As individuals attempt to cope
with their difficulties, they may develop a wide range of coping
mechanisms including some that are inappropriate or maladaptive,
yet these mechanisims provide the ability to put the computer into
sleep mode, or a screen freeze rather than have a total system crash.
The following is a more complex description of some
of the recent findings with respect to the biological/neurological
issues.
A number of biological factors have been linked to
PTSD symptoms. It has been claimed that they make people with PTSD
hyper-responsive to stressful stimuli, especially stimuli that are
reminiscent of the trauma.
Chronic Stress Reaction
Chronically enhanced secretion of adrenaline and noradrenaline in
patients of PTSD are consistent with a chronic stress reaction.
In keeping with the enhanced secretion of these stress hormones,
patients show enhanced startle response and higher baseline heart
rates and blood pressure.
Hypothalamic-pituitary-adrenal axis abnormalities
Patients with PTSD have abnormally low levels of cortisol. On administration
of low dose dexamethasone, patients exhibit hypersuppression of
cortisol, the pattern of findings suggesting enhanced negative feedback
in the hypothalamic- pituitary- adrenal axis and that it is set
to produce large response to further stressors.
Neuroendocrinological abnormalities
Several neurotransmitter systems seem to be dysregulated in PTSD
- Sensitization of the noradrenergic system - in
particular downregulation of the alpha 2 adrenergic receptors
causing increased levels of noradrenaline and enhanced locus coeruleus
activity, explaining in part symptoms of autonomic hyperarousal
and re-experiencing (through the effects of beta adrenergic receptors
in the amygdalae and cortical structures)
- Sensitization of the serotonergic system - serotonin
controls the function of septohippocampal behavioral inhibition
system, sensitization would lead to activation of the same by
mild everyday stressors, explaining in part symptoms of hyperarousal
- Endogenous opiates have been suspected to mediate
the symptoms of emotional numbing and amnesia
- Veterans with PTSD have been found to have enhanced
levels of corticotrophin releasing factor (CRF) in the cerebrospinal
fluid, this might be the reason behind enhanced plasma adrenaline
and noradrenaline concentration and the consequent anxiety and
fear related behavior
Thyroid function
Some studies have detected increased levels of thyroid hormones
in PTSD patients, the levels correlating with the severity of hyperarousal
symptoms.
Neuroimaging
- Magnetic Resonance Imaging has shown a reduced
hippocampal volume in war veterans and women with a history of
childhood sexual abuse. Disturbances of hippocampal function may
lead to enhanced reactivity to stimulation and deficits in autobiographical
memory.
- Dysfunction of the amygdala is often considered
as the key to delay in the extinction of fear responses to reminders
of the traumatic event. Positron emission tomography has depicted
reduced blood flow in the middle temporal cortex, which is supposed
to play a role in the extinction of fear through inhibition of
amygdala function. (6)
A Bio-psycho-social Trap:
To sum it up, Shalve & Rogel-Fuchs describe PTSD as
a biological-psychological-social trap characterized by: 1) a permanent
alteration in the neurobiological processes that results in hyperarousal; 2)
The acquisition of conditioned fear/avoidance response to trauma-related
stimuli; 3) Altered cognitive schemata and social apprehension result
from the dissonance of the traumatic event and one’s previous knowledge
of the world. (7)
Other Factors
Much thought has gone into trying to understand why
some individuals develop PTSD, while others may develop other or
no symptoms after a dramatic incident. A wide range of factors may
account for the variance in reactions. While this list is too long
to go into detail, it is important to have an understanding of each
factor when dealing with victims of PTSD.
- Type and circumstance of incident. For example,
reactions to sexual assault may be very different to those of
being a victim of an earthquake.
- Age of the victim at the time of incident
- Duration of the incident
- How much time has elapsed since
the incident occurred
- Psychological preparation for the event
- Who/what was the perpetrator/cause of the incident
- Type(s) of injury to the victim
- Multiple or individual victims of the incident
- Prior traumatic incidents in the lives of the individual
- Did the individual keep it a secret or did they
receive support
- Other than the traumatic event, does the individual
have a stable, supportive lifestyle
- Comorbidity issues
From both a psychological as well as a legal perspective,
these issues may generate a significant orientation to both treatment
as well as legal strategy.
The Role Of Shame
One of the key features that often accompanies a diagnosis
of PTSD is shame. So often, there is an underlying sense of responsibility
for what has occurred. Or, a faulty perception that, perhaps he/she
might have been able to avoid the event, perpetrator, accident,
etc. Even though he/she may rationally acknowledge that they were
a child at the time or that they had no control over the earthquake
or their buddy died as a result of a firefight with the enemy, or
the rapist assaulted them in their hotel room, there is often an
underlying sense of culpability. This sense of guilt and shame is
what often leads to greater levels of depression, and suicidality…
especially if others in their familial or social circle mirror any
of this dynamic. Further, these potential improbabilities are often
played upon by the defending side of legal cases. The questioning
of plaintiffs around these issues may generate a significant amount
of distress leading to an intensification of psychological impairment. The
client must understand and be well prepared for this type of “retraumatization.”
(See “What lawyers need to know”).
As Terrance Real describes in his book, I Don’t Want
to Talk About It, when dealing with trauma there are two levels,
active trauma and passive trauma. (8) Active trauma is the actual
event or incident that has resulted in the injury. Passive trauma
refers to the response of others… or lack thereof. As an example,
consider a victim of sexual assault, certainly a dramatic and traumatic
event. This would be considered the active trauma. Let’s further
consider the further emotional impact upon her if her husband or
parents responded with the non-nurturing attitude of blaming her
for being “in the wrong place” or wearing seductive clothing Another
example might be the woman who has the active trauma of a surgery
that disfigures her body and the passive trauma of her husband rejecting
her sexually. Even on a national level one can see the interaction
between active and passive trauma when one reviews how eighteen
to twenty year old Viet Nam era soldiers were sent into combat for
a year and then were reject upon their return to the US, often labeled
as “baby killers,” “war criminals,” etc. What we understand about
trauma is that many people have a natural inborn resiliency that
can help them to manage and move beyond many terrible and awful
situations and events. However, what is most devastating is not
the active but rather the passive trauma as it plays on the guilt
and shame that must be resolved as part of the recovery process.
Co-morbidity
The lifestyles of victims of unresolved (and often
untreated) PTSD are often characterized by a range of other problems
and difficulties. With mood, hyperarousal, and avoidance being difficult
to regulate, the individual may be vulnerable to self-medicating
with drugs and/or alcohol. In addition, relationships may be fraught
with intense bouts of overreactive anger accompanied by distance
and remoteness. This, in combination with guilt and shame, may result
in a lifestyle punctuated by impulsivity, poor judgment, risk taking
behaviors and further incidents of victimization. Clinicians often
see patients whose “computer” has been severely infected by a virus
to the point where it has interfered with many of individual’s “programs.” Getting
to the core PTSD issues often means dealing with a wide variety
of other “surface” issues such as drug/alcohol, relational and occupational
issues. Many victims of complex PTSD may not present as the most
appropriate of clients.
PTSD In The Workplace With increasing frequency, more
cases are coming forward where the workplace or individuals within
are seen as the perpetrators or cause of extreme of stress. Sexual
harassment, bullying, wrongful termination, intimidating management
style have been cited as the cause of severe emotional duress. While
perhaps not rising to the level of PTSD, a number of these types
of cases have been settled against the work organization. While
this paper cannot cover this topic in appropriate detail, one may
review some of the recent cases by visiting the website, www.bullyonline.org/stress/ptsd.htm#Legal.
What Lawyers Need To Know
Taking on a case that involves a client who is suffering
from PTSD (or any other emotional condition) requires a significant
amount of care both for the client as well as the attorney him/herself. For
victims of complex PTSD, the legal process can re-open the original
trauma in a very intense and significant way. Often, the individual
has constructed a defensive style that has facilitated a lifestyle
allowing the individual to remain distant from the incident. As
discussed, the numbing, memory problems, hypervigilance, social
isolation (and often times, substance misuse) are all methods to
keep the intense emotions at bay. The attorney (and his/her entire
staff) must understand that the client is, once again, being placed
in harm’s way. Not only is the individual being asked to “revisit”
the original trauma in great detail, and in a way that may overwhelm
the fragile defenses, the legal process itself can mirror and be
experienced as yet, another form of abuse and/or neglect. Safeguards
to manage the potential of both types of “retraumatization” must
be in place. This usually can be accomplished by the following:
- The client must have a good social/family support
system;
- The client should have an established relationship
with a therapist;
- The attorney should be very
clear about the goals of the legal intervention as well
as with all of the potential problems and pitfalls;
- The attorney must have an “unconditional positive
regard” for the client; and a willingness to “go there with him/her;”
- The client must know in advance the potential pain
for him/her and his/her family and friends) that may be the result
of media coverage, discovery, depositions, others’ testimony and
taking the stand him/herself;
- There must be availability of the attorney beyond
the usual and customary level;
- Regular communication with the client is essential;
- The client must not feel coerced into pursuing
the case beyond his/her emotional limits;
- In addition to the private therapist for the client,
it is important to have an evaluation done by an “outside” consultant/expert;
- The client should be
prepared for the “post-litigation” reactions… another reason to
have a therapist;
- Impact on lawyers
There are concepts known in the mental health field
as compassion fatigue and vicarious traumatization. Simply put,
these terms refer to the wear and tear experienced when working
with individuals who are the victims of significant trauma, abuse,
neglect, etc. When intervening in a professional capacity with these
victims one must understand the potential for absorbing what I refer
to as emotional hazardous waste material. Over the years, well-
trained and qualified professionals may become affected by the experience
of working with these types of cases and lose a sense of professional
boundaries and propriety. This infraction of professional boundary
may take the form of financial, emotional and/or sexual involvement. In
the mental health field, this is considered a serious lapse in professional
ethics and may leave the therapist vulnerable to a range of malpractice
suits. For any professional working with victims of intense and
extreme trauma, whether it be mental health, legal, medical, law
enforcement, clergy, etc, it is essential to remember to take care
of one’s self in order to continue to care for others.
Additional Resources
PTSD, the Traumatic Principle and Lawsuits, C.B.
Scrignar, M.D. Psychiatric Times , August 1999 , Vol. XVI , Issue
8 http://www.psychiatrictimes.com/p990853.htm
References
- T. Lewis:, The Soldier's Heart and the Effort
Syndrome. New York, Paul B. Hoeber, 1919
- van der Kolk, et. Al. Traumatic Stress, Guildord
Press, NY 1996 pg. 52.
- Ibid
- Diagnostical Statistical Manual of Mental Disorders,
American Psychiatric Association, Washington, D.C. 2000
- www.brainexplorer.org/ptsd/PTSD
- www.twilightbridge.com/psychiatryproper/ailmentguide/ptsd/bio.htm
- Shalev AY, Rogel-Fuchs Y, Pitman RK. Conditioned
Fear and Psychological Trauma (Editorial). Biological Psychiatry
31:863-856, 1992.
- Terrence Real. I Don’t Want to Talk About It. Scribner
Book Company, 1997
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