Psychogenic Non Epileptic Seizures: Symptoms, Risk Factors, and Possible Complications

Psychogenic non epileptic seizures, often shortened to PNES, are episodes that look like epileptic seizures but are not caused by the abnormal electrical brain activity that defines epilepsy. They are real, involuntary events. A person is not “faking,” choosing, or consciously producing the symptoms.

PNES sits at the overlap of neurology and mental health. The episodes may involve shaking, collapse, altered awareness, unresponsiveness, sensory changes, or emotional distress. Because these events can closely resemble epileptic seizures, fainting, panic attacks, movement disorders, and other medical problems, careful evaluation matters. The goal is not only to name the condition correctly, but also to avoid missed epilepsy, missed medical causes, and unnecessary emergency interventions.

Key points to understand first

• PNES episodes can look very similar to epileptic seizures, but they do not show the same seizure-related electrical activity on EEG.
• The symptoms are involuntary and can be frightening or disabling, even when the cause is not epilepsy.
• PNES is also described as functional seizures or dissociative seizures in many clinical settings.
• Common features may include prolonged episodes, closed eyes, irregular limb movements, fluctuating awareness, crying, or movements that change during the event, but no single sign proves PNES.
• PNES can coexist with epilepsy, so a person may have more than one type of seizure-like episode.
• Urgent professional evaluation matters for first seizures, injury, prolonged unresponsiveness, breathing problems, pregnancy, new neurological symptoms, or any uncertainty about what is happening.

Table of Contents

• What Psychogenic Non Epileptic Seizures Are
• PNES Symptoms During an Episode
• Signs That May Distinguish PNES From Epilepsy
• Causes and Mechanisms Behind PNES
• Risk Factors and Coexisting Conditions
• How PNES Is Evaluated and Diagnosed
• Complications and Daily Life Effects
• When Urgent Evaluation Matters

What Psychogenic Non Epileptic Seizures Are

Psychogenic non epileptic seizures are seizure-like events that involve changes in movement, awareness, sensation, behavior, or emotion, but they are not caused by epileptic brain discharges. They are best understood as functional neurological symptoms: the nervous system is producing real symptoms, but not through the same mechanism as epilepsy.

The wording can be confusing. “Psychogenic” means that psychological, emotional, stress-related, developmental, or trauma-related factors may be involved. It does not mean imaginary. “Non epileptic” means the event is not an epileptic seizure. It does not mean the episode is harmless, voluntary, or unimportant. Many clinicians now use the term functional seizures because it avoids implying that the cause is purely psychological. Others use dissociative seizures, especially when the episode involves a disruption in awareness, memory, body control, or the sense of connection to the surroundings.

PNES belongs to a wider group of functional neurological disorders. In these conditions, the brain and nervous system have difficulty controlling a function such as movement, sensation, speech, awareness, or seizure-like episodes. The symptom can be very physical, even when standard tests do not show the pattern expected in a structural neurological disease.

The most important distinction is between PNES and epilepsy. Epileptic seizures happen when abnormal, excessive, synchronized electrical activity in the brain produces a sudden change in behavior, movement, awareness, or sensation. PNES can produce similar outward changes, but a typical PNES episode does not show the same epileptic electrical activity. This is why EEG testing and especially video EEG monitoring can be central to diagnostic clarity.

PNES can occur in children, teenagers, and adults. It is often diagnosed in specialty neurology or epilepsy settings because many people are first evaluated for possible epilepsy. Some people are diagnosed after months or years of seizure-like episodes that did not respond as expected to antiseizure medication. Others are diagnosed after a first dramatic event that leads to emergency evaluation.

A key point is that PNES and epilepsy can coexist. A person may have epileptic seizures and separate PNES episodes. This makes diagnosis more complex because one normal EEG, one unusual event, or one witness description may not capture the full picture. Clinicians often need to identify whether all episodes are the same or whether there are multiple event types.

The term “pseudoseizure” is outdated and often harmful. It can sound as though the episode is fake, which misrepresents the condition. PNES episodes are not consciously produced in the way malingering or intentional deception would be. They are real events that can cause distress, injury risk, disability, stigma, and major disruption to daily life.

PNES Symptoms During an Episode

PNES symptoms vary widely, but they usually involve sudden changes in body control, awareness, responsiveness, sensation, or emotional expression. Some episodes look convulsive, while others are quieter and may resemble fainting, dissociation, panic, or a period of unresponsiveness.

During an episode, a person may have motor symptoms such as:

• shaking or jerking of the arms, legs, head, or whole body
• stiffening, tremor, thrashing, or flailing movements
• side-to-side head movements
• back arching or pelvic movements
• movements that appear irregular, variable, or out of rhythm
• collapse, weakness, or inability to move
• eyelid fluttering or forceful eye closure

Awareness can also change. Some people appear unconscious or unable to respond. Others may hear what is happening but cannot speak or move normally. Some describe feeling detached from their body, dreamlike, overwhelmed, frozen, trapped, or unable to control the event. Afterward, they may remember parts of the episode, none of it, or only fragments.

Sensory and internal symptoms can occur before, during, or after an episode. These may include dizziness, headache, tingling, numbness, blurred vision, nausea, chest tightness, shortness of breath, heat sensations, trembling inside the body, or a feeling that something is about to happen. Some people describe an “aura,” but this word can be misleading because auras also occur in focal epilepsy. The presence of a warning feeling does not by itself distinguish PNES from epilepsy.

Emotional signs can be prominent. A person may cry, panic, appear frightened, become overwhelmed, or show distress during or after the event. In some cases, the emotional component is obvious. In others, the episode may appear mostly physical, and the person may not feel aware of any clear stress or trigger.

Episodes may last seconds, minutes, or longer. Some PNES episodes are prolonged, especially compared with many generalized tonic-clonic epileptic seizures, which often have a shorter convulsive phase. However, duration alone is not enough to diagnose PNES. Some epileptic seizures can last longer than expected, and prolonged unresponsiveness always requires careful medical judgment.

After a PNES episode, people may feel exhausted, sore, embarrassed, confused, ashamed, frightened, or emotionally drained. Some have headaches, muscle pain, weakness, or difficulty concentrating. Others recover quickly. The after-effects can resemble those after epileptic seizures, which is another reason witness descriptions and diagnostic testing can be important.

Children and adolescents may show PNES differently from adults. Episodes can occur in school, during family stress, after illness, after bullying, around academic pressure, or without an obvious trigger. In younger people, clinicians must be careful not to assume the episodes are behavioral problems. They require the same thoughtful medical and psychological assessment as adult episodes.

Signs That May Distinguish PNES From Epilepsy

Some signs can raise suspicion for PNES, but no single symptom proves the diagnosis. The safest way to think about signs is as clues that guide evaluation, not as a checklist that confirms or rules out epilepsy.

Certain features are reported more often in PNES than in epileptic seizures. These include closed eyes during the event, eyelid fluttering, asynchronous limb movements, side-to-side head movement, fluctuating intensity, long duration, crying, or movements that pause and resume. Some people with PNES show partial awareness or respond in small ways to voices, touch, or events around them.

Epileptic seizures, especially generalized tonic-clonic seizures, more often have abrupt onset, a stereotyped sequence, rhythmic synchronized jerking, loss of awareness, and a postictal phase with confusion or deep sleep. But real life is messier than textbook descriptions. Focal epileptic seizures can look unusual, especially when they arise from frontal or temporal brain regions. Some epileptic seizures involve bizarre movements, vocalizations, emotional symptoms, or brief episodes during sleep. This is why overconfidence based on appearance alone can be risky.

A comparison can help show why clinical judgment is needed:

Feature	More suggestive of PNES	More suggestive of epileptic seizure
Eye appearance	Eyes closed tightly or fluttering	Eyes open or forced deviation in some seizure types
Movement pattern	Irregular, changing, asynchronous, or waxing and waning	More stereotyped, rhythmic, or predictable for that person
Duration	Often longer or fluctuating	Often brief, though exceptions occur
Awareness	May be variable, with partial responsiveness	May be clearly impaired depending on seizure type
After-effects	Fatigue, distress, soreness, or variable recovery	Postictal confusion, sleepiness, headache, or injury can occur
Diagnostic certainty	Requires compatible history and appropriate evaluation	Requires seizure classification and neurological evaluation

Some commonly mentioned signs are less reliable than people assume. Tongue biting, urinary incontinence, injury, and falls can happen in epileptic seizures, but they are not exclusive to epilepsy. Likewise, emotional stress before an event may occur with PNES, but stress can also trigger epileptic seizures in some people. A person having an event in front of others does not prove that the event is psychological or attention-seeking.

Video from a witness can be useful when obtained safely and respectfully. A smartphone recording may help a neurologist compare movement pattern, duration, responsiveness, eye position, breathing, and recovery. It should not replace medical evaluation, but it can add valuable information when the event is not captured in clinic.

Several other conditions can mimic PNES or epilepsy, including fainting, heart rhythm problems, sleep disorders, migraine, movement disorders, panic attacks, dissociative episodes, low blood sugar, medication effects, intoxication, withdrawal, and transient neurological events. When symptoms include sudden confusion, collapse, abnormal movements, or altered awareness, broad differential diagnosis is essential. A separate discussion of screening versus diagnosis in mental health can be useful because PNES is not diagnosed by a simple questionnaire or self-test.

Causes and Mechanisms Behind PNES

PNES usually does not have one simple cause. It is better understood as the result of interacting biological, psychological, social, and neurological factors that affect how the brain processes threat, emotion, body signals, attention, memory, and voluntary control.

Older explanations often framed PNES as a direct expression of emotional conflict. That idea is too narrow. Some people with PNES have clear trauma histories, major stressors, dissociation, anxiety, or depression. Others do not identify a specific emotional trigger. Some have physical illness, pain, sleep disruption, head injury, neurodevelopmental differences, family stress, or long periods of uncertainty around unexplained symptoms. Many have a mixture of vulnerabilities rather than one obvious cause.

A useful clinical model separates contributing factors into three groups:

• Predisposing factors: long-standing vulnerabilities that may increase risk, such as childhood adversity, trauma exposure, anxiety traits, dissociation, chronic pain, previous neurological illness, or family patterns around illness and stress.
• Precipitating factors: events near the onset of symptoms, such as acute stress, injury, illness, bereavement, conflict, medical procedures, panic episodes, or a first epileptic seizure-like event.
• Perpetuating factors: influences that keep episodes going, such as fear of future events, avoidance, diagnostic uncertainty, repeated emergency visits, stigma, sleep loss, ongoing stress, untreated coexisting conditions, or misinterpretation of body sensations.

This model does not imply blame. It simply recognizes that the nervous system is shaped by experience, biology, learning, threat perception, and body state. In PNES, the brain may enter a seizure-like state without epileptic discharges. The person may lose access to normal voluntary control, awareness, or movement regulation during the episode.

Dissociation is one possible mechanism. Dissociation means a disruption in the usual integration of awareness, memory, identity, emotion, sensation, or body control. In PNES, dissociation may help explain why someone can appear unresponsive, feel detached, or be unable to stop movements despite wanting to. Not every person with PNES describes dissociation, but it is common enough that dissociation assessment may be relevant in some evaluations.

Stress physiology may also play a role. The body’s threat system can produce powerful physical changes: racing heart, trembling, altered breathing, muscle tension, tunnel vision, dizziness, nausea, and shifts in awareness. In some people, these body states may become linked with seizure-like episodes. This does not mean ordinary stress alone “causes” PNES. It means the nervous system may be sensitized to certain internal or external cues.

Brain network research has also influenced how clinicians think about PNES. Studies suggest that functional seizures may involve altered communication among networks involved in emotion processing, self-awareness, attention, motor control, and body perception. This supports a modern view of PNES as a brain-based functional disorder rather than a purely psychological label.

Risk Factors and Coexisting Conditions

Risk factors for PNES are not the same as causes. They increase the likelihood of the condition or commonly appear alongside it, but they do not prove why any one person developed symptoms.

PNES is diagnosed more often in females than males in many clinical samples, and onset is often reported in adolescence or early adulthood, though it can occur at many ages. Rates vary depending on the setting, because PNES is far more likely to be found in epilepsy monitoring units than in the general population.

Commonly reported risk factors and associated conditions include:

• trauma exposure, including emotional, physical, or sexual trauma
• post-traumatic stress symptoms
• anxiety disorders, panic symptoms, or high physiological arousal
• depressive symptoms or mood instability
• dissociative symptoms
• chronic pain, fibromyalgia, migraine, or other bodily symptom conditions
• sleep problems and fatigue
• mild traumatic brain injury or concussion history
• epilepsy or a previous suspected seizure disorder
• neurodevelopmental or learning difficulties in some people
• family stress, interpersonal conflict, bereavement, or major life strain
• prior medical procedures, hospitalizations, or illness-related fear

Trauma is important but should be discussed carefully. Many people with PNES have histories of trauma or adversity, and trauma-related symptoms can shape episodes. However, not everyone with PNES has known trauma, and not everyone with trauma develops PNES. Assuming trauma is always present can feel invalidating or intrusive. When trauma symptoms are suspected, a broader PTSD assessment may help clinicians understand the person’s full symptom pattern.

Psychiatric comorbidity is common. Anxiety, depression, PTSD, personality-related difficulties, somatic symptom burden, and dissociation may be present. This does not make PNES “just psychiatric.” Rather, it means that brain, body, and mental health symptoms often interact. A person may need evaluation from both neurology and mental health professionals to understand the full picture.

Epilepsy deserves special attention. Some people with PNES have been treated for epilepsy before PNES is recognized. Others truly have both conditions. Coexisting epilepsy may be more likely when there are multiple distinct episode types, abnormal EEG findings, seizures arising from sleep, known brain injury, developmental neurological conditions, or a clear history of epileptic events. Clinicians may need to capture more than one typical event to avoid mislabeling all episodes as PNES or all episodes as epilepsy.

Medical mimics must also be considered. Syncope, heart rhythm abnormalities, metabolic problems, medication reactions, sleep disorders, migraine, and movement disorders can all produce sudden episodes. For example, convulsive syncope can include brief jerking movements and be mistaken for a seizure. Sleep disorders can cause unusual movements, confusion, or behaviors during the night. Panic attacks can produce shaking, derealization, chest symptoms, and fear of losing control.

Risk factors should therefore be interpreted as context, not proof. A person with anxiety can still have epilepsy. A person with epilepsy can still have PNES. A person with PNES can still develop unrelated neurological or medical symptoms that deserve evaluation.

How PNES Is Evaluated and Diagnosed

PNES is diagnosed through clinical evaluation, event history, witness information, and, when feasible, video EEG confirmation of a typical event. A diagnosis should not be made only because a routine EEG is normal or because the episode looks emotional.

The evaluation usually starts with a detailed history. Clinicians ask what happens before, during, and after episodes; how long they last; whether awareness changes; what movements occur; whether there are injuries; whether episodes happen from sleep; whether there are triggers; and how recovery looks. Witnesses can be very helpful because the person having the episode may not remember it clearly.

Clinicians also ask whether there are different types of events. This is crucial. One type may be PNES, while another could be epileptic, syncopal, sleep-related, or panic-related. Patterns over time often matter more than a single description.

A neurological examination helps look for signs of another neurological disorder. Depending on the presentation, clinicians may consider blood tests, heart evaluation, imaging, sleep evaluation, or other tests. Brain imaging such as brain MRI may be used when symptoms suggest a structural neurological concern or when a first seizure workup requires it, but imaging does not diagnose PNES by itself.

Routine EEG can be useful, but it has limits. A normal EEG between episodes does not rule out epilepsy because many people with epilepsy have normal EEGs between seizures. An abnormal EEG also does not automatically prove that every event is epileptic. This is why event capture matters.

The most useful test in many cases is video EEG monitoring. This records the person on video while EEG measures brain electrical activity. If a typical episode occurs and the EEG does not show epileptic seizure activity, and the clinical picture fits, PNES becomes much more likely. Video EEG is especially important when the diagnosis is uncertain, events are frequent enough to capture, epilepsy is possible, or treatment decisions depend on distinguishing episode types.

Mental health evaluation may also be part of the diagnostic picture. This does not mean the clinician has already decided the symptoms are “psychological.” It helps identify anxiety, depression, trauma symptoms, dissociation, stressors, sleep problems, substance use, and other factors that may affect the person’s health and functioning. A careful mental health evaluation can also clarify whether symptoms fit another condition that needs recognition.

Diagnosis should be communicated with care. The person should be told that the episodes are real, involuntary, and recognized in medicine. They should also be told what evidence supports the diagnosis and whether epilepsy or other conditions have been ruled out. Poor explanation can leave people feeling dismissed, blamed, or confused, which may worsen fear and mistrust.

Several phrases can create harm. “It is all in your head,” “nothing is wrong,” or “you are doing this for attention” are inaccurate and stigmatizing. Better medical framing recognizes that PNES is a real functional neurological condition in which the brain produces seizure-like symptoms without epileptic discharges.

Complications and Daily Life Effects

PNES can have serious effects even though it is not epilepsy. The impact may include physical injury, emergency visits, diagnostic delay, stigma, work or school disruption, driving restrictions, emotional distress, and reduced quality of life.

One major complication is misdiagnosis. If PNES is mistaken for epilepsy, a person may receive antiseizure medications that do not address the underlying condition. In emergency settings, prolonged PNES may be mistaken for status epilepticus, which can lead to aggressive interventions. At the same time, the opposite error is also dangerous: assuming an episode is PNES when it is actually epilepsy, syncope, a cardiac problem, intoxication, metabolic disturbance, or another urgent condition. Accurate diagnosis protects against both forms of harm.

Physical injury can occur during falls or intense movements. People may hit their head, bite the inside of the mouth, strain muscles, develop bruises, or experience pain after an episode. Injury does not prove epilepsy. It simply shows that the event has real physical consequences.

The social effects can be just as difficult. People with PNES may avoid public places, school, work, exercise, social events, or being alone because they fear another episode. Family members may become frightened or overprotective. Employers, teachers, or peers may misunderstand the condition. Some people feel embarrassed, ashamed, or accused of exaggerating symptoms.

Stigma is a central complication. Because PNES does not show epileptic EEG activity, some people are told or made to feel that the episodes are not real. This can delay proper diagnosis, increase distress, and reduce trust in clinicians. Stigma may be worse when outdated terms such as “pseudoseizure” are used.

Diagnostic uncertainty can also become a burden. A person may spend years moving between emergency departments, neurologists, primary care visits, and psychiatric referrals without a clear explanation. During that time, the episodes may become part of daily life planning. People may stop driving, lose work opportunities, withdraw from relationships, or develop fear around normal body sensations.

PNES is also associated with coexisting mental health symptoms, and some people have elevated risk related to depression, trauma, self-harm, or suicidal thoughts. This does not mean every person with PNES is at immediate psychiatric risk, but it does mean emotional distress should be taken seriously. Symptoms such as hopelessness, self-harm thoughts, or feeling unsafe require prompt professional attention.

The effects are not limited to the individual. Families may feel helpless during episodes, unsure whether to call emergency services, or worried about doing the wrong thing. Children and teenagers may experience school absences, academic problems, bullying, or conflict around whether episodes are “real.” Adults may face workplace misunderstanding, financial strain, or difficulty explaining the diagnosis to others.

Complications are often worsened by unclear language. A precise explanation can reduce confusion: PNES is not epilepsy, not deliberate, not imaginary, and not diagnosed by attitude or personality. It is a real functional seizure disorder that requires careful diagnostic understanding.

When Urgent Evaluation Matters

Urgent evaluation matters whenever a seizure-like episode is new, dangerous, unusually prolonged, associated with injury, or not clearly understood. Even if someone has a known PNES diagnosis, new or changed symptoms should not automatically be assumed to be PNES.

Emergency assessment is especially important when any of the following occur:

• a first-ever seizure-like episode
• breathing difficulty, blue lips, choking, or prolonged loss of consciousness
• serious injury, head trauma, burns, drowning risk, or a fall from height
• an episode lasting longer than usual or repeated episodes without recovery
• pregnancy
• diabetes, known heart disease, or possible poisoning, overdose, or withdrawal
• fever, stiff neck, severe headache, or signs of infection
• new weakness, facial droop, trouble speaking, vision loss, or sudden confusion
• seizure-like activity after a recent head injury
• suicidal thoughts, self-harm, or concern that the person may not be safe
• uncertainty about whether the event is PNES, epilepsy, fainting, or another medical emergency

A known PNES diagnosis can guide evaluation, but it should not close the door on medical assessment. People can have PNES and also develop epilepsy, heart rhythm problems, medication reactions, concussion, stroke-like symptoms, panic attacks, or other conditions. A new pattern deserves attention.

It is also important to distinguish urgent evaluation from routine diagnostic clarification. Not every PNES episode requires an emergency department visit once the diagnosis is clear and the person’s clinicians have provided individualized guidance. However, this article does not replace that guidance, and uncertainty should be handled cautiously. A practical resource on when to seek emergency care for mental health or neurological symptoms may help frame red flags, but individual medical advice should come from a qualified clinician.

Certain features are often alarming but not automatically dangerous by themselves. Shaking, crying, apparent unresponsiveness, or prolonged movements may occur in PNES. Still, bystanders usually cannot reliably distinguish PNES from epilepsy or a medical emergency in the moment, especially if the person has not been fully evaluated.

Children, older adults, pregnant people, and people with serious medical conditions deserve particular caution. In children, seizure-like episodes can affect school safety and family stress, and diagnosis may require pediatric neurology input. In older adults, fainting, cardiac causes, medication effects, and neurological disease may be more likely and should be carefully considered.

The safest overall message is balanced: PNES is real and often not caused by epileptic brain activity, but seizure-like episodes should be taken seriously until the diagnosis and event pattern are clear. A careful diagnosis can reduce unnecessary interventions while still protecting the person from missed neurological, cardiac, metabolic, or psychiatric risks.

References

• Psychogenic Nonepileptic Seizures 2024 (Review)
• Management of Functional Seizures Practice Guideline Executive Summary Report of the AAN Guidelines Subcommittee 2025 (Guideline)
• Functional (psychogenic non-epileptic/dissociative) seizures: why and how? 2022 (Review)
• Using Semiology to Classify Epileptic Seizures vs Psychogenic Nonepileptic Seizures: A Meta-analysis 2022 (Meta-analysis)
• Incidence and prevalence of psychogenic nonepileptic seizures (functional seizures): a systematic review and an analytical study 2023 (Systematic Review)
• An update on psychogenic nonepileptic seizures 2024 (Review)

Disclaimer

This article is for general educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Seizure-like episodes, loss of awareness, collapse, or new neurological symptoms should be evaluated by qualified medical professionals, especially when the cause is uncertain or symptoms are severe.

Thank you for taking the time to read about a condition that is often misunderstood; sharing this article may help someone approach PNES with more clarity and less stigma.