Dr. D.P.D Wijesinghe and Dr. Ruwan M
Jayatunge
Sri Lanka underwent a prolonged armed conflict
lasting 30 years, during which many combatants ended up with severe
post-traumatic reactions (Jayasinghe & de Silva, 2024). Beyond
post-traumatic stress disorder, a subset of soldiers exhibited temporary
psychotic reactions, and some soldiers ended up in full-blown psychosis that
was directly linked to the intense combat stress encountered during warfare.
This particular manifestation of psychological distress has not been
extensively explored within the medical literature.
PTSD and Psychosis are two different mental
health conditions, but sometimes they can overlap. There are few studies that
have found direct evidence for a link between PTSD and psychosis. Psychotic
phenomena may also be a relatively common manifestation in patients with
chronic PTSD (Seedat et al.,2003). Morrison and team (2003) provide evidence to
support the relationship between trauma and psychosis.
Stress is a significant factor in many theories
regarding the origins of psychotic disorders (Holtzman et al., 2012). Extreme
battlefield conditions can precipitate the onset of Brief Psychotic Disorders
in some soldiers. The severe trauma encountered by military personnel during
combat may result in various psychotic disorders, such as Post-Traumatic Stress
Disorder with Psychotic Features, Stress-Induced Schizophreniform Disorders,
and Bipolar Disorder.
Investigating combat-induced psychotic
manifestations in Sri Lanka Army personnel is essential as it highlights a
significant and often overlooked aspect of psychiatric trauma that conventional
PTSD frameworks do not adequately address. While much of the global military
research tends to concentrate on symptoms such as anxiety, hypervigilance, and
depression linked to traditional PTSD, a thorough examination of these
psychotic manifestations is crucial for enhancing regional public health, advancing
military medicine, and ensuring long-term societal stability.
Brief Psychotic Disorders Following Combat Trauma
In high-stress combat situations, certain
soldiers may experience Brief Psychotic Disorders, or Brief Reactive Psychosis,
which is marked by an abrupt and transient emergence of psychotic symptoms. Umbrasas (2010) highlights that
extreme combat stress acts as a direct precipitant for Brief Psychotic Disorder
(BPD) in vulnerable soldiers. This disorder can emerge following combat trauma,
resulting in a significant disruption in the brain's ability to interpret
reality due to the overwhelming stress encountered in such environments.
The mental resilience of soldiers is severely
compromised by combat stress, which can lead to a complete breakdown of the
brain's stress response. The amygdala, which plays a crucial role in processing
fear, may become overstimulated, resulting in acute panic (van Wingen et
al.,2011). Simultaneously, heightened levels of cortisol and adrenaline can
impair the functioning of the prefrontal cortex, hindering logical reasoning and
accurate reality assessment (Arnsten, 2009). Furthermore, an excessive release of neurotransmitters like
dopamine and glutamate can distort sensory perceptions (Master, 2024), complicating
the soldier's ability to effectively engage with their surroundings.
Consequently, this condition can result in hallucinations, delusions,
disorganized speech, or catatonic behavior, with episodes typically lasting
from several days to less than a month (Bashir
& Ahmad, 2023).
Corporal KJX's experience illustrates the onset
of Brief Psychotic Disorder in a soldier during wartime. Following a
devastating mortar attack, he witnessed the violent deaths of two fellow
soldiers, an event that left him horrified as he saw their brain matter
exposed. This traumatic incident triggered an acute stress reaction, leading to
a psychotic episode characterized by incoherent speech and unresponsiveness to
verbal commands. Additionally, he exhibited signs of agitation and
disorientation, becoming confused about his environment. Subsequently, he was
transported to Palali Hospital, where he was diagnosed with Brief Psychotic
Disorder. Remarkably, after three weeks, he regained his normal cognitive functions.
Combat
Related PTSD with Psychotic Features
Research conducted by Hamner and colleagues
(2000) indicates that between 30% and 40% of combat veterans suffering from
chronic PTSD exhibit psychotic symptoms. The Sri Lankan war theatre has seen
numerous soldiers develop post-traumatic stress disorder (PTSD), a condition
that has been further exacerbated by the emergence of psychotic symptoms.
Post-Traumatic Stress Disorder (PTSD) is
strictly classified as a trauma- and stressor-related disorder, not a psychotic
disorder (Friedman, 2014). The experience
of severe and persistent trauma can lead some soldiers with PTSD to exhibit
psychotic symptoms, a consequence of significant neurochemical and cognitive
strain. This overload arises from the intense stress associated with their
traumatic experiences (Arnsten, 2009).
According to Hamner and team (1999), combat stress
causes PTSD with psychotic features by triggering a profound neurobiological
and chemical collapse in the brain. Chronic combat stress leads to a physical
weakening and down-regulation of the medial prefrontal cortex (mPFC) and the
anterior cingulate cortex (Shin et
al.,2011). In the absence of the
regulatory function of the prefrontal cortex, the amygdala becomes hyperactive,
resulting in a constant release of adrenaline and cortisol into the nervous
system (Koenigs & Grafman, 2009). Prolonged exposure to elevated cortisol levels can cause
hippocampal atrophy, damaging neurons in the hippocampus, which is crucial for
contextualizing and time-stamping memories
(McEwen,2007). Additionally,
dysregulation of dopamine can trigger a series of failures in the brain's
ability to accurately process reality (Kapur, 2003). This neurobiological breakdown can cause
psychosis.
The
following case study examines a Sri Lankan soldier, Corporal XLC, who
participated in the Eelam War and subsequently developed PTSD with psychotic
features. Having served in the operational area for several years, he was
exposed to numerous traumatic combat experiences, which significantly impacted
his mental health. By 2003, after more than five years of service, Corporal
XLC's condition had severely declined, leading to a diagnosis of combat-related
PTSD. In addition to the core symptoms of PTSD, he displayed signs of paranoid
surveillance, extreme hypervigilance, and delusions characterized by feelings
of depression and guilt. He also experienced traumatic replays, including
auditory hallucinations of deceased comrades' voices and phantom sounds reminiscent
of the battlefield, such as gunfire and helicopter sounds. On one occasion, he
experienced environmental distortion, mistaking an old lorry near his residence
for a Unicorn APC, a type of mine-protected personnel carrier developed by the
Sri Lanka Army.
War Trauma and Schizophreniform
Disorders
The
emergence of Schizophreniform Disorder, or a complete schizophrenia-spectrum
disorder, in soldiers after experiencing intense combat stress can be
comprehensively explained by the Stress-Vulnerability-Sensitization Model
(Stefanis et al.,2020). It is important to note that the onset of such
disorders is not solely attributable to stress; rather, a pre-existing genetic
predisposition is necessary (Van Os & Kapur, 2009). Extended exposure to
the traumatic conditions of a combat environment can lead to lasting changes in
the brain's biochemical pathways (Southwick et al.,2011). This includes
dopaminergic hyper-reactivity, sympathetic overload, and a surge in cortisol
levels. (Pruessner et al.,2014). Chronic
stress results in an excess of cortisol, which can inflict damage on critical
brain regions such as the hippocampus and prefrontal cortex, ultimately
contributing to dopamine dysregulation and the development of Schizophreniform
Disorders among combatants (Grace, 2016).
Lance
Corporal PNXG's experience illustrates how combat stress can lead to
Schizophreniform Disorder. As a seasoned combatant, he took part in Operation
Liberation in 1987, where he encountered traumatic events, including the deaths
of two fellow soldiers, which left him emotionally overwhelmed. Six months’
post-operation, he began to exhibit symptoms such as combat-themed delusions
and paranoia, particularly when he saw airplanes. Additionally, he experienced
trauma-echoing hallucinations, hearing the voices of his deceased platoon
members, and developed a belief that his thoughts were being manipulated by the
enemy to extract critical intelligence from his mind. His condition was further
characterized by affective flattening and avolition, resulting in significant
neglect of self-care.
Battle Stress and Bipolar Disorder
Clinical
studies show a shockingly high presence of bipolar symptoms in heavily
traumatized military cohorts. The experience of battle stress can lead some
combatants to develop Bipolar Disorder due to the brain's adaptation to
prolonged hyper-vigilance in active combat zones (Gordon et al., 2014). This heightened state triggers a relentless
release of dopamine and glutamate, enhancing focus, energy, and reaction times
(Popoli et al.,2012). However, chronic exposure to combat stress inflicts
lasting damage on the Hypothalamic-Pituitary-Adrenal (HPA) axis, which
regulates the body's stress response, resulting in excessive cortisol levels in
the bloodstream. Following such stress, the brain experiences significant
emotional and chemical upheaval, with repeated traumatic events forging deep
neurological pathways (Herman et al.,2016). Over time, the brain becomes increasingly
sensitive to stress, leading to emotional extremes that can occur without any
external threat. Consequently, the internal mood-regulation system operates
independently, oscillating between manic and depressive states. Additionally,
sustained high cortisol levels contribute to the structural shrinkage of the
hippocampus and prefrontal cortex, impairing the brain's capacity to manage
emotional fluctuations and reinforcing the cycle of Bipolar Disorder
(Tomaszewska & Nowak, 2025).
Sargent
BCX dedicated 12 years of service in the Army, primarily in operational areas,
where he encountered gruesome battle experiences that significantly affected
his mental health. This exposure led to a complex psychological profile
characterized by severe mood fluctuations, marked by episodes of both manic and
depressive phases. During the manic phase, he displayed explosive rage,
restlessness, and grandiose beliefs. Conversely, in the depressive phase, he
suffered from emotional numbness, survival guilt, social isolation, and
suicidal thoughts.
Concluding Thoughts
A
considerable number of military veterans from Sri Lanka endured extended
deployments, often lasting as long as ten consecutive years, in intensely
active operational areas located in the North and East during the protracted
Eelam War, which spanned three decades. This prolonged exposure to combat
situations has led to a significant prevalence of combat-related stress among
these soldiers, with some experiencing severe psychotic manifestations directly
linked to their wartime experiences. These psychotic disorders represent a
particularly complex and serious form of trauma, arising from encounters with
traumatic events that are far removed from typical human experiences. It is
important to be vigilant not to miss psychotic symptoms in soldiers presenting
with PTSD as early treatment directly improves long-term recovery and reduces
symptoms by shortening the duration of untreated psychosis.
(Dr. D.P.D. Wijesinghe serves as a consultant psychiatrist and is also a visiting lecturer at the University of Wayamba)
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