Psychologicaltrauma (also known as mental trauma, psychiatric trauma, emotional damage, or psychotrauma) is an emotional response caused by severe distressing events that are outside the normal range of human experiences. It must be understood by the affected person as directly threatening the affected person or their loved ones with death, severe bodily injury, or sexual violence; indirect exposure, such as from watching television news, may be extremely distressing and can produce an involuntary and possibly overwhelming physiological stress response, but does not produce trauma per se. Examples include violence, rape, or a terrorist attack.[1]
Short-term reactions such as psychological shock and psychological denial are typically followed. Long-term reactions and effects include bipolar disorder, uncontrollable flashbacks, panic attacks, insomnia, nightmare disorder, difficulties with interpersonal relationships, and post-traumatic stress disorder (PTSD). Physical symptoms including migraines, hyperventilation, hyperhidrosis, and nausea are often developed.[2]
As subjective experiences differ between individuals, people react to similar events differently. Most people who experience a potentially traumatic event do not become psychologically traumatized, though they may be distressed and experience suffering.[3] Some will develop PTSD after exposure to a traumatic event, or series of events.[4][5] This discrepancy in risk rate can be attributed to protective factors some individuals have, that enable them to cope with difficult events, including temperamental and environmental factors, such as resilience and willingness to seek help.[6]
People who experience trauma often have problems and difficulties afterwards. The severity of these symptoms depends on the person, the types of trauma involved, and the support and treatment they receive from others. The range of reactions to trauma can be wide and varied, and differ in severity from person to person.[7]
After a traumatic experience, a person may re-experience the trauma mentally and physically. For example, the sound of a motorcycle engine may cause intrusive thoughts or a sense of re-experiencing a traumatic experience that involved a similar sound e.g. gunfire. Sometimes a benign stimulus (e.g. noise from a motorcycle) may get connected in the mind with the traumatic experience. This process is called traumatic coupling.[8] In this process, the benign stimulus becomes a trauma reminder, also called a trauma trigger. These can produce uncomfortable and even painful feelings. Re-experiencing can damage people's sense of safety, self, self-efficacy, as well as their ability to regulate emotions and navigate relationships. They may turn to psychoactive drugs, including alcohol, to try to escape or dampen the feelings. These triggers cause flashbacks, which are dissociative experiences where the person feels as though the events are recurring. Flashbacks can range from distraction to complete dissociation or loss of awareness of the current context. Re-experiencing of symptoms is a sign that the body and mind are actively struggling to cope with the traumatic experience.
Triggers and cues act as reminders of the trauma and can cause anxiety and other associated emotions.[9] Often the person can be completely unaware of what these triggers are. In many cases, this may lead a person with a traumatic disorder to engage in disruptive behaviors or self-destructive coping mechanisms, often without being fully aware of the nature or causes of their own actions. Panic attacks are an example of a psychosomatic response to such emotional triggers.[10]
Consequently, intense feelings of anger may frequently surface, sometimes in inappropriate or unexpected situations, as danger may always seem to be present due to re-experiencing past events. Upsetting memories such as images, thoughts, or flashbacks may haunt the person, and nightmares may be frequent.[11] Insomnia may occur as lurking fears and insecurity keep the person vigilant and on the lookout for danger, both day and night. A messy personal financial scene, as well as debt, are common features in trauma-affected people.[12] Trauma does not only cause changes in one's daily functions, but could also lead to morphological changes.[13] Such epigenetic changes can be passed on to the next generation, thus making genetics one of the components of psychological trauma.[14] However, some people are born with or later develop protective factors such as genetics that help lower their risk of psychological trauma.[15]
The person may not remember what actually happened, while emotions experienced during the trauma may be re-experienced without the person understanding why (see Repressed memory). This can lead to the traumatic events being constantly experienced as if they were happening in the present, preventing the subject from gaining perspective on the experience. This can produce a pattern of prolonged periods of acute arousal punctuated by periods of physical and mental exhaustion. This can lead to mental health disorders like acute stress and anxiety disorder, prolonged grief disorder, somatic symptom disorder, conversion disorders, brief psychotic disorder, borderline personality disorder, adjustment disorder, etc.[16] Obsessive- compulsive disorder is another mental health disorder with symptoms similar to that of psychological trauma, such as hyper-vigilance and intrusive thoughts.[17] Research has indicated that individuals who have experienced a traumatic event have been known to use symptoms of obsessive- compulsive disorder, such as compulsive checking of safety, as a way to mitigate the symptoms associated with trauma.[18]
In time, emotional exhaustion may set in, leading to distraction, and clear thinking may be difficult or impossible. Emotional detachment, as well as dissociation or "numbing out" can frequently occur. Dissociating from the painful emotion includes numbing all emotion, and the person may seem emotionally flat, preoccupied, distant, or cold. Dissociation includes depersonalisation disorder, dissociative amnesia, dissociative fugue, dissociative identity disorder, etc. Exposure to and re-experiencing trauma can cause neurophysiological changes like slowed myelination, abnormalities in synaptic pruning, shrinking of the hippocampus, cognitive and affective impairment. This is significant in brain scan studies done regarding higher-order function assessment with children and youth who were in vulnerable environments.
Some traumatized people may feel permanently damaged when trauma symptoms do not go away and they do not believe their situation will improve. This can lead to feelings of despair, transient paranoid ideation, loss of self-esteem, profound emptiness, suicidality, and frequently, depression. If important aspects of the person's self and world understanding have been violated, the person may call their own identity into question.[7] Often despite their best efforts, traumatized parents may have difficulty assisting their child with emotion regulation, attribution of meaning, and containment of post-traumatic fear in the wake of the child's traumatization, leading to adverse consequences for the child.[19][20] In such instances, seeking counselling in appropriate mental health services is in the best interests of both the child and the parent(s).
There are several behavioral responses commonly used towards stressors including the proactive, reactive, and passive responses. Proactive responses include attempts to address and correct a stressor before it has a noticeable effect on lifestyle. Reactive responses occur after the stress and possible trauma has occurred and is aimed more at correcting or minimizing the damage of a stressful event. A passive response is often characterized by an emotional numbness or ignorance of a stressor.
There is also a distinction between trauma induced by recent situations and long-term trauma which may have been buried in the unconscious from past situations such as child abuse. Trauma is sometimes overcome through healing; in some cases this can be achieved by recreating or revisiting the origin of the trauma under more psychologically safe circumstances, such as with a therapist. More recently, awareness of the consequences of climate change is seen as a source of trauma as individuals contemplate future events as well as experience climate change related disasters. Emotional experiences within these contexts are increasing, and collective processing and engagement with these emotions can lead to increased resilience and post-traumatic growth, as well as a greater sense of belongingness. These outcomes are protective against the devastating impacts of psychological trauma.[23]
All psychological traumas originate from stress, a physiological response to an unpleasant stimulus.[24] Long-term stress increases the risk of poor mental health and mental disorders, which can be attributed to secretion of glucocorticoids for a long period of time. Such prolonged exposure causes many physiological dysfunctions such as the suppression of the immune system and increase in blood pressure.[25] Not only does it affect the body physiologically, but a morphological change in the hippocampus also takes place. Studies showed that extreme stress early in life can disrupt normal development of hippocampus and impact its functions in adulthood. Studies surely show a correlation between the size of hippocampus and one's susceptibility to stress disorders.[26] In times of war, psychological trauma has been known as shell shock or combat stress reaction. Psychological trauma may cause an acute stress reaction which may lead to post-traumatic stress disorder (PTSD). PTSD emerged as the label for this condition after the Vietnam War in which many veterans returned to their respective countries demoralized, and sometimes, addicted to psychoactive substances.
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