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Understanding PTSD

 

Posttraumatic Stress Disorder, or PTSD, is a psychiatric disorder that can occur following the experience or witnessing of life-threatening events such as military combat, natural disasters, terrorist incidents, serious accidents, or violent personal assaults like rape. Most survivors of trauma return to normal given a little time. However, some people will have stress reactions that do not go away on their own, or may even get worse over time. These individuals may develope PTSD. People who suffer from PTSD often relive the experience through nightmares and flashbacks, have difficulty sleeping, and feel detached or estranged, and these symptoms can be severe enough and last long enough to significantly impair the person's daily life.

PTSD is marked by clear biological changes as well as psychological symptoms. PTSD is complicated by the fact that it frequently occurs in conjunction with related disorders such as depression, substance abuse, problems of memory and cognition, and other problems of physical and mental health. The disorder is also associated with impairment of the person's ability to function in social or family life, including occupational instability, marital problems and divorces, family discord, and difficulties in parenting.

Understanding PTSD

PTSD is not a new disorder. There are written accounts of similar symptoms that go back to ancient times, and there is clear documentation in the historical medical literature starting with the Civil War, when a PTSD-like disorder was known as "Da Costa's Syndrome." There are particularly good descriptions of posttraumatic stress symptoms in the medical literature on combat veterans of World War II and on Holocaust survivors.

Careful research and documentation of PTSD began in earnest after the Vietnam War. The National Vietnam Veterans Readjustment Study estimated in 1988 that the prevalence of PTSD in that group was 15.2% at that time and that 30% had experienced the disorder at some point since returning from Vietnam.

PTSD has subsequently been observed in all veteran populations that have been studied, including World War II, Korean conflict, and Persian Gulf populations, and in United Nations peacekeeping forces deployed to other war zones around the world. There are remarkably similar findings of PTSD in military veterans in other countries. For example, Australian Vietnam veterans experience many of the same symptoms that American Vietnam veterans experience.

PTSD is not only a problem for veterans, however. Although there are unique cultural- and gender-based aspects of the disorder, it occurs in men and women, adults and children, Western and non-Western cultural groups, and all socioeconomic strata. A national study of American civilians conducted in 1995 estimated that the lifetime prevalence of PTSD was 5% in men and 10% in women. A revision of this study done in 2005, reports that PTSD occurs in about 8% of all Americans.

How does PTSD develop?

Most people who are exposed to a traumatic, stressful event experience some of the symptoms of PTSD in the days and weeks following exposure. Available data suggest that about 8% of men and 20% of women go on to develop PTSD, and roughly 30% of these individuals develop a chronic form that persists throughout their lifetimes.

The course of chronic PTSD usually involves periods of symptom increase followed by remission or decrease, although some individuals may experience symptoms that are unremitting and severe. Some older veterans, who report a lifetime of only mild symptoms, experience significant increases in symptoms following retirement, severe medical illness in themselves or their spouses, or reminders of their military service (such as reunions or media broadcasts of the anniversaries of war events).

How is PTSD assessed?

In recent years, a great deal of research has been aimed at developing and testing reliable assessment tools. It is generally thought that the best way to diagnose PTSD-or any psychiatric disorder, for that matter-is to combine findings from structured interviews and questionnaires with physiological assessments. A multi-method approach especially helps address concerns that some patients might be either denying or exaggerating their symptoms.

How common is PTSD?

An estimated 7.8 percent of Americans will experience PTSD at some point in their lives, with women (10.4%) twice as likely as men (5%) to develop PTSD. About 3.6 percent of U.S. adults aged 18 to 54 (5.2 million people) have PTSD during the course of a given year. This represents a small portion of those who have experienced at least one traumatic event; 60.7% of men and 51.2% of women reported at least one traumatic event. The traumatic events most often associated with PTSD for men are rape, combat exposure, childhood neglect, and childhood physical abuse. The most traumatic events for women are rape, sexual molestation, physical attack, being threatened with a weapon, and childhood physical abuse.

About 30 percent of the men and women who have spent time in war zones experience PTSD. An additional 20 to 25 percent have had partial PTSD at some point in their lives. More than half of all male Vietnam veterans and almost half of all female Vietnam veterans have experienced "clinically serious stress reaction symptoms." PTSD has also been detected among veterans of the Gulf War, with some estimates running as high as 8 percent.

Who is most likely to develop PTSD?

1. Those who experience greater stressor magnitude and intensity, unpredictability, uncontrollability, sexual (as opposed to nonsexual) victimization, real or perceived responsibility, and betrayal

2. Those with prior vulnerability factors such as genetics, early age of onset and longer-lasting childhood trauma, lack of functional social support, and concurrent stressful life events

3. Those who report greater perceived threat or danger, suffering, upset, terror, and horror or fear

4. Those with a social environment that produces shame, guilt, stigmatization, or self-hatred

What are the consequences associated with PTSD?

PTSD is associated with a number of distinctive neurobiological and physiological changes. PTSD may be associated with stable neurobiological alterations in both the central and autonomic nervous systems, such as altered brainwave activity, decreased volume of the hippocampus, and abnormal activation of the amygdala. Both the hippocampus and the amygdala are involved in the processing and integration of memory. The amygdala has also been found to be involved in coordinating the body's fear response.

Psychophysiological alterations associated with PTSD include hyper-arousal of the sympathetic nervous system, increased sensitivity of the startle reflex, and sleep abnormalities.

People with PTSD tend to have abnormal levels of key hormones involved in the body's response to stress. Thyroid function also seems to be enhanced in people with PTSD. Some studies have shown that cortisol levels in those with PTSD are lower than normal and epinephrine and norepinephrine levels are higher than normal. People with PTSD also continue to produce higher than normal levels of natural opiates after the trauma has passed. An important finding is that the neurohormonal changes seen in PTSD are distinct from, and actually opposite to, those seen in major depression. The distinctive profile associated with PTSD is also seen in individuals who have both PTSD and depression.

PTSD is associated with the increased likelihood of co-occurring psychiatric disorders. In a large-scale study, 88 percent of men and 79 percent of women with PTSD met criteria for another psychiatric disorder. The co-occurring disorders most prevalent for men with PTSD were alcohol abuse or dependence (51.9 percent), major depressive episodes (47.9 percent), conduct disorders (43.3 percent), and drug abuse and dependence (34.5 percent). The disorders most frequently comorbid with PTSD among women were major depressive disorders (48.5 percent), simple phobias (29 percent), social phobias (28.4 percent), and alcohol abuse/dependence (27.9 percent).

PTSD also significantly impacts psychosocial functioning, independent of comorbid conditions. For instance, Vietnam veterans with PTSD were found to have profound and pervasive problems in their daily lives. These included problems in family and other interpersonal relationships, problems with employment, and involvement with the criminal justice system.

Headaches, gastrointestinal complaints, immune system problems, dizziness, chest pain, and discomfort in other parts of the body are common in people with PTSD. Often, medical doctors treat the symptoms without being aware that they stem from PTSD.

How is PTSD treated?

PTSD is treated by a variety of forms of psychotherapy (talk therapy) and drug therapy. There is no definitive treatment, but some treatments appear to be quite promising, especially cognitive-behavioral therapy, group therapy, and exposure therapy. Exposure therapy involves having the patient repeatedly relive the frightening experience under controlled conditions to help him or her work through the trauma. Studies have also shown that medications help ease associated symptoms of depression and anxiety and help with sleep. The most widely used drug treatments for PTSD are the selective serotonin reuptake inhibitors, such as Prozac and Zoloft. At present, cognitive-behavioral therapy appears to be somewhat more effective than drug therapy. However, it would be premature to conclude that drug therapy is less effective overall since drug trials for PTSD are at a very early stage. Drug therapy appears to be highly effective for some individuals and is helpful for many more. In addition, the recent findings on the biological changes associated with PTSD have spurred new research into drugs that target these biological changes, which may lead to much increased efficacy.

 

Information Taken from The National Centre For PTSD fact sheet.

 

Psychological Trauma

We all use the word "trauma" in every day language to mean a highly stressful event. But the key to understanding traumatic events is that it refers to extreme stress that overwhelms a person's ability to cope. There is no clear divisions between stress (which leads to ) trauma (which leads to ) adaptation. Although I am writing about psychological trauma, it is also important to keep in mind that stress reactions are clearly physiological as well.

Different experts in the field define psychological trauma in different ways. What I want to emphasize is that it is an individual's subjective experience that determines whether an event is or is not traumatic.

Psychological trauma is the unique individual experience of an event or enduring conditions, in which:

The individual's ability to integrate his/her emotional experience is overwhelmed, or
The individual experiences (subjectively) a threat to life, bodily integrity, or sanity.
Thus, a traumatic event or situation creates psychological trauma when it overwhelms the individual's perceived ability to cope, and leaves that person fearing death, annihilation, mutilation, or psychosis. The individual feels emotionally, cognitively, and physically overwhelmed. The circumstances of the event commonly include abuse of power, betrayal of trust, entrapment, helplessness, pain, confusion, and/or loss.

This definition of trauma is fairly broad. It includes responses to powerful one-time incidents like accidents, natural disasters, crimes, surgeries, deaths, and other violent events. It also includes responses to chronic or repetitive experiences such as child abuse, neglect, combat, urban violence, concentration camps, battering relationships, and enduring deprivation. This definition intentionally does not allow us to determine whether a particular event is traumatic; that is up to each survivor. This definition provides a guideline for our understanding of a survivor's experience of the events and conditions of his/her life.

Jon Allen, a psychologist at the Menninger Clinic in Topeka, Kansas and author of Coping with Trauma: A Guide to Self-Understanding (1995) reminds us that there are two components to a traumatic experience: the objective and the subjective.

"It is the subjective experience of the objective events that constitutes the trauma...The more you believe you are endangered, the more traumatized you will be...Psychologically, the bottom line of trauma is overwhelming emotion and a feeling of utter helplessness. There may or may not be bodily injury, but psychological trauma is coupled with physiological upheaval that plays a leading role in the long-range effects".

In other words, trauma is defined by the experience of the survivor. Two people could undergo the same noxious event and one person might be traumatized while the other person remained relatively unscathed. It is not possible to make blanket generalizations such that "X is traumatic for all who go through it" or "event Y was not traumatic because no one was physically injured." In addition, the specific aspects of an event that are traumatic will be different from one individual to the next. You cannot assume that the details or meaning of an event, such as a violent assault or rape, that are most distressing for one person will be same for another person.

Trauma comes in many forms, and there are vast differences among people who experience trauma. But the similarities and patterns of response cut across the variety of stressors and victims, so it is very useful to think broadly about trauma.

Single Blow vs. Repeated Trauma

Lenore Terr, in her studies of traumatized children, has made the distinction between single blow and repeated traumas. Single shocking events can certainly produce trauma reactions in some people:


Natural disasters such as earthquakes, hurricanes, floods, volcanoes, etc.

Closely related are technological disasters such as auto and plane crashes, chemical spills, nuclear failures, etc. Technological disasters are more socially divisive because there is always energy given towards finding fault and blaming.

Criminal violence often involves single blow traumas such as robbery, rape and homicide, which not only have a great impact on the victims, but also on witnesses, loved ones of victims, etc. (Interestingly, there is often overlap between single blow and repeated trauma, because a substantial majority of victimized women have experienced more than one crime.) Unfortunately, traumatic effects are often cumulative.
As traumatic as single-blow traumas are, the traumatic experiences that result in the most serious mental health problems are prolonged and repeated, sometimes extending over years of a person's life.

Natural vs. Human Made

Prolonged stressors, deliberately inflicted by people, are far harder to bear than accidents or natural disasters. Most people who seek mental health treatment for trauma have been victims of violently inflicted wounds dealt by a person. If this was done deliberately, in the context of an ongoing relationship, the problems are increased. The worst situation is when the injury is caused deliberately in a relationship with a person on whom the victim is dependent---most specifically a parent-child relationship.

Varieties of Man-Made Violence


War/political violence - Massive in scale, severe, repeated, prolonged and unpredictable. Also multiple: witnessing, life threatening, but also doing violence to others. Embracing the identity of a killer.[/font]

Human rights abuses - kidnapping, torture, etc.

Criminal violence - discussed above.

Rape - The largest group of people with posttraumatic stress disorder in this country. A national survey of 4000 women found that 1 in 8 reported being the victim of a forcible rape. Nearly half had been raped more than once. Nearly 1/3 was younger than 11 and over 60% were under 18. Diana Russell's research showed that women with a history of incest were at significantly higher risk for rape in later life (68% incest history, 38% no incest).[/font]

Domestic Violence - recent studies show that between 21% and 34% of women will be assaulted by an intimate male partner. Deborah Rose's study found that 20-30% of adults in the US, approved of hitting a spouse.

Child Abuse - the scope of childhood trauma is staggering. Everyday children are beaten, burned, slapped, whipped, thrown, shaken, kicked and raped. According to Dr. Bruce Perry, a conservative estimate of children at risk for PTSD exceeds 15 million.

Sexual abuse- According to Dr. Frank Putnam of NIMH, at least 40% of all psychiatric inpatients have histories of sexual abuse in childhood. Sexual abuse doesn't occur in a vacuum: is most often accompanied by other forms of stress and trauma-generally within a family.
We must be careful about generalizations about child sexual abuse: research shows that about 1/3 of sexually abused children have no symptoms, and a large proportion that do become symptomatic, are able to recover. Fewer than 1/5 of adults who were abused in childhood show serious psychological disturbance.

More disturbance is associated with more severe abuse: longer duration, forced penetration, helplessness, fear of injury or death, perpetration by a close relative or caregiver, coupled with lack of support or negative consequences from disclosure.


Physical abuse often results in violence toward others, abuse of one's own children, substance abuse, self-injurious behavior, suicide attempts, and a variety of emotional problems.

Emotional/verbal abuse

Witnessing. Seeing anyone beaten is stressful; the greater your attachment to the victim, the greater the stress. Especially painful is watching violence directed towards a caregiver, leaving the child to fear losing the primary source of security in the family.

Sadistic abuse- we generally think about interpersonal violence as an eruption of passions, but the severest forms are those inflicted deliberately. Calculated cruelty can be far more terrifying than impulsive violence. Coercive control is used in settings like concentration camps, prostitution and pornography rings, and in some families.
One of the best-documented research findings in the field of trauma is the DOSE-RESPONSE relationship --the higher the dose of trauma, the more potentially damaging the effects; the greater the stressor, the more likely the development of PTSD.

The most personally and clinically challenging clients are those who have experienced repeated intentional violence, abuse, and neglect from childhood onward. These clients have experienced tremendous loss, the absence of control, violations of safety, and betrayal of trust. The resulting emotions are overwhelming: grief, terror, horror, rage, and anguish.

Their whole experience of identity and of the world is based upon expectations of harm and abuse. When betrayal and damage is done by a loved one who says that what he or she is doing is good and is for the child's good, the seeds of lifelong mistrust and fear are planted. Thus, the survivor of repetitive childhood abuse and neglect expects to be harmed in any helping relationship and may interact with us as though we have already harmed him or her.


Summary

Psychological effects are likely to be most severe if the trauma is:

Human caused
Repeated
Unpredictable
Multifaceted
Sadistic
Undergone in childhood
And perpetrated by a caregiver
Who Are Trauma Survivors?


Because violence is everywhere in our culture and because the effects of violence and neglect are often dramatic and pervasive,


most clients/patients/recipients of services in the mental health system are trauma survivors.
Because coping responses to abuse and neglect are varied and complex,


trauma survivors may carry any psychiatric diagnosis and frequently trauma survivors carry many diagnoses.
And, because interpersonal trauma does not discriminate,


survivors are both genders, all ages, all races, all classes, all sizes, all sexual orientations, all religions, and all nationalities. Although the larger number of our clients are female, many men and boys are survivors of childhood abuse and trauma. Under-recognition of male survivors, combined with cultural gender bias has made it especially difficult for these men to get help.
What are the Lasting Effects of Trauma?

There is no one diagnosis that contains all abuse survivor clients; rather individuals carrying any diagnosis can be survivors. Often survivors carry many diagnoses.

Abuse survivors may meet criteria for diagnoses of:


substance dependence and abuse,
personality disorders (especially borderline personality disorder),
depression,
anxiety (including post traumatic stress disorder),
dissociative disorders, and
eating disorders, to name a few.
PTSD is the only diagnostic category in the DSM that is based on etiology. In order for a person to be diagnosed with PTSD, there had to be a traumatic event. Because most diagnoses are descriptive and not explanatory, they focus on symptoms or behaviors without a context: they do not explain how or why a person may have developed those behaviors (e.g., to cope with traumatic stress).

For purposes of identifying trauma and it adaptive symptoms, It is much more useful to ask "What HAPPENED to this person" rather than "what is WRONG with this person."


Symptoms as Adaptations

The traumatic event is over, but the person's reaction to it is not. The intrusion of the past into the present is one of the main problems confronting the trauma survivor. Often referred to as re-experiencing, this is the key to many of the psychological symptoms and psychiatric disorders that result from traumatic experiences. This intrusion may present as distressing intrusive memories, flashbacks, nightmares, or overwhelming emotional states.

The Use of Maladaptive Coping Strategies

<span style='font-family:Courier'>Survivors of repetitive early trauma are likely to instinctively continue to use the same self-protective coping strategies that they employed to shield themselves from psychic harm at the time of the traumatic experience. Hypervigilance, dissociation, avoidance and numbing are examples of coping strategies that may have been effective at some time, but later interfere with the person's ability to live the life s/he wants.

It is useful to think of all trauma "symptoms" as adaptations. Symptoms represent the client's attempt to cope the best way they can with overwhelming feelings. When we see "symptoms" in a trauma survivor, it is always significant to ask ourselves: what purpose does this behavior serve? Every symptom helped a survivor cope at some point in the past and is still in the present -- in some way. We humans are incredibly adaptive creatures. Often, if we help the survivor explore how behaviors are an adaptation, we can help them learn to substitute a less problematic behavior.


Developmental Factors

Chronic early trauma -- starting when the individual's personality is forming -- shapes a child's (and later adult's) perceptions and beliefs about everything.

Severe trauma can have a major impact on the course of life. Childhood trauma can cause the disruption of basic developmental tasks. The developmental tasks being learned at the time the trauma happens can help determine what the impact will be. For example, survivors of childhood trauma can have mild to severe deficits in abilities such as:


self-soothing
seeing the world as a safe place
trusting others
organized thinking for decision-making
avoiding exploitation
Disruption of these tasks in childhood can result in adaptive behavior, which may be interpreted in the mental health system as "symptoms." For example, disruptions in:

 

self-soothing can be seen as agitation
seeing the world as a safe place paranoia
trusting others paranoia
organized thinking for decision-making psychosis
avoiding exploitation self-sabotage
Physiologic Changes

The normal physiological responses to extreme stress lead to states of physiologic hyperarousal and anxiety. When our fight-or-flight instincts take over, the wash of cortisol and other hormones signal us to watch out! We humans are incredibly adaptive. When this happens repeatedly, our bodies learn to live in a constant state of "readiness for combat," with all the behaviors-scanning, distrust, aggression, sleeplessness, etc. that entails.

Cutting edge neurological research is beginning to show to what extent trauma effects us on a biological and hormonal basis as well as psychologically and behaviorally. Research suggests that in trauma, interruptions of childhood development and hypervigilance of our autonomic systems are compounded and reinforced by significant changes in the hard-wiring of the brain.

This may make it even more challenging (but not impossible) for survivors of childhood trauma to learn to do things differently. But it may also hold the promise of pharmaceutical interventions to address the biological/chemical effects of child abuse.

So, as scientists learn more about what trauma is, we are seeing see that it is truly a complex mixture of biological, psychological, and social phenomena.

 


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