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When Psychiatry Shadows Neurology: What Brain on Fire Reveals About Seizures, EEG, and Diagnostic Delay

Executive Summary

This discussion centers on Susannah Cahalan’s experience with anti-NMDA receptor encephalitis and the diagnostic path that ultimately led from psychiatric misdiagnosis to neurological recognition.

 

A central theme is that prominent psychiatric symptoms can overshadow the underlying neurological process, delaying the correct diagnosis. In Cahalan’s case, early labels including bipolar disorder and schizoaffective disorder shaped how subsequent symptoms were interpreted, even as seizures and other neurological changes emerged.

 

The conversation highlights the importance of seizure recognition, EEG monitoring, and interdisciplinary collaboration when psychiatric and neurological symptoms overlap. Cahalan describes how seizure activity, even when not fully captured as a classic generalized convulsion, was critical in getting her onto a neurology service and into an epilepsy monitoring setting. That shift created the opportunity for broader diagnostic thinking. The discussion also addresses the clinical significance of psychogenic non-epileptic seizures, emphasizing that these events still reflect a serious underlying problem and should not be dismissed.

 

A second major theme is the human experience of hospitalization. Cahalan reflects on bedside manner, dignity, support systems, and the effect that clinicians, nurses, and support staff can have on recovery. The conversation argues that diagnostic accuracy depends not only on technical expertise, but also on time, listening, history-taking, and collaboration across specialties.

More broadly, this episode presents anti-NMDA receptor encephalitis as a case study in how complex neuropsychiatric illness can challenge clinical assumptions. It also shows how EEG, careful observation, and sustained interdisciplinary evaluation can change the course of care.

Podcast Experts Featured

Susannah Cahalan, Author of Brain on Fire, discussing her experience with anti-NMDA receptor encephalitis, psychiatric misdiagnosis, seizures, hospitalization, and recovery.

Clinical Terms Explained
  • Anti-NMDA Receptor Encephalitis: An autoimmune encephalitis in which the body’s immune system targets NMDA receptors in the brain, affecting memory, behavior, mood, and neurological function.

  • Autoimmune Encephalitis: A condition in which the immune system targets areas of the brain, producing neurological and psychiatric symptoms.

  • Epilepsy Monitoring Unit (EMU): A hospital setting where patients are monitored with EEG and video to evaluate seizures and seizure-like events.

  • Psychogenic Non-Epileptic Seizures (PNES): Seizure-like events that are not epileptic seizures on EEG, but still represent a serious clinical problem that warrants full evaluation.

  • Subacute Seizures: A term used in the discussion to describe seizure activity that may not appear as a classic generalized convulsion, but may still be clinically important.

  • Video-EEG Monitoring: Continuous monitoring that combines EEG data with video recording to evaluate seizure events and correlate observed behavior with brain activity.

When Psychiatric Presentation Obscures a Neurological Diagnosis

Susannah Cahalan’s account of anti-NMDA receptor encephalitis remains clinically important because it illustrates how a neurological illness can first present through psychiatric symptoms and how those symptoms can dominate the diagnostic frame. In her case, the most profound initial symptom was psychiatric presentation. That early profile led to misdiagnoses including bipolar disorder and later schizoaffective disorder. Those diagnoses then influenced how other changes were interpreted.

 

A key point from the discussion is that once a psychiatric label is applied, it can begin to shadow the rest of the clinical picture. Cahalan describes this dynamic directly: the psychiatric interpretation became the dominant narrative, even though seizures were also part of the case. The conversation makes clear that this is not simply a story about one rare disease. It is also a story about how clinical framing can shape diagnostic momentum.

 

At the same time, the discussion avoids simplistic blame. Cahalan repeatedly acknowledges the complexity of the case, the rarity of the disease at the time, and the difficult conditions under which physicians were working. Rather than turning the case into a story of heroes and villains, she describes a system in which some clinicians recognized pieces of the picture, but one physician was finally able to assemble the whole.

Why Seizures Changed the Direction of Care

The turning point in the discussion is the role seizures played in redirecting care toward neurology. Cahalan states plainly that seizures saved her life. Although her psychiatric symptoms were the most prominent feature, the seizure events were what brought her into neurological evaluation and onto a monitoring unit.

 

This distinction matters because the conversation emphasizes that seizure activity does not always appear in the form many people expect. Cahalan did not consistently present with a fully captured generalized convulsive seizure during monitoring. Instead, she experienced multiple events, including staring episodes and other abnormalities that were clinically significant even if they did not conform to the most familiar seizure image. The discussion underscores that an absence of a dramatic convulsion does not exclude seizure pathology.

 

The host compares seizure capture to fishing: a patient may have a normal EEG pattern during recording and then seize after monitoring has ended. Cahalan’s experience reflects that difficulty. Some events occurred in the waiting room, some on the unit, and some were documented on video. Yet uncertainty remained. At one point there was discussion that these events might be pseudo-seizures, now more appropriately referred to as psychogenic non-epileptic seizures.

 

That possibility did not eliminate the need for further investigation. On the contrary, the conversation argues that even if an event is non-epileptic, it still indicates that something important is happening clinically. No healthy, fully functioning person is simply fabricating seizures for attention in a way that should end the workup. That argument is one of the clearest clinical takeaways from the episode: seizure-like events, whether epileptic or not, require serious attention.

Anti-NMDA Receptor Encephalitis and Clinical Course

Cahalan describes anti-NMDA receptor encephalitis as an autoimmune process in which the immune system targets NMDA receptors in the brain. In her description, these receptors are distributed widely and are critical to fundamental neurological function. As the illness progressed, she experienced flu-like symptoms, lethargy, depression, memory impairment, severe behavioral change, psychosis, and progression toward catatonia.

 

She explains the disease course in a layered way. Early in the illness, mood changes, low energy, and nonspecific symptoms emerged. As the process intensified, memory and behavior deteriorated. Later stages can involve profound dysfunction, including catatonia, inability to breathe independently, coma, and death. She notes that she was diagnosed and treated before reaching those final stages.

 

The discussion also highlights the historical context. At the time of her diagnosis in 2009, the condition had only recently been described and named. That timing matters. The disease was not yet widely recognized outside specialized neurology circles, and general awareness was far lower than it is today. Cahalan credits that limited but growing body of knowledge with making her diagnosis possible.

What Has Changed Since Her Diagnosis

One of the most practical parts of the conversation is the discussion of how diagnosis and treatment have changed since Cahalan became ill. She notes that anti-NMDA receptor encephalitis is now included on autoimmune panels, which changes how quickly it may enter the differential diagnosis. She also notes that treatment options have evolved and that there are now clinical trials involving therapies specifically directed at autoimmune encephalitis.

 

The discussion presents early diagnosis as one of the biggest shifts. In retrospect, having the condition included on routine autoimmune testing panels could have shortened the path to diagnosis. That development reflects broader change: what was once obscure is now more likely to be considered earlier by clinicians across specialties.

 

At the same time, Cahalan raises an important unresolved question about recovery. She notes that many patients recover, but asks what “recovery” actually means if detailed pre-illness baseline function was never documented. Returning to work does not necessarily answer whether memory, cognition, or full functional capacity returned to pre-illness levels. That distinction is clinically important and remains difficult to assess.

 

EEG, Memory, and the Patient Experience of Monitoring

The episode offers a rare patient-side description of EEG and hospital monitoring. Cahalan remembers sensory details vividly: the smell of the glue, the cap, the soreness of the scalp afterward. She also recalls the emotional and cognitive environment of being monitored in a shared room with three other patients.

 

That setting mattered. She describes the bustle of multiple families, nurses, and physicians moving in and out of the room, and she believes that environment amplified her psychosis. Later, once she was placed one-to-one and then in a more isolated setting, the experience improved. For clinicians working in epilepsy monitoring environments, this is a useful reminder that the architecture of care can affect patient experience and potentially symptom intensity.

 

The discussion also highlights the limits of memory during severe illness. Cahalan is careful to distinguish between memories she knows are real, memories preserved in her journal, and memories she believes may be reconstructed or false. That uncertainty adds clinical value to the conversation because it shows how difficult retrospective symptom reporting can be in encephalitic illness.

 

 

Bedside Manner, Dignity, and the Meaning of Care

A major theme throughout the interview is that clinical expertise and human presence are not separable. Cahalan describes a physician who was both highly skilled and deeply humane, and she argues that bedside manner is not peripheral to care. In her view, the interaction between doctor and patient can itself be part of healing.

 

She also distinguishes among different kinds of clinicians she encountered. Some had warmth but could not solve the case. Others were brilliant but failed in communication or made premature judgments. One neurologist, for example, concluded early that alcohol use was driving her symptoms. Cahalan frames that not as malice, but as a damaging flash judgment made in a high-pressure environment.

 

The episode repeatedly returns to dignity. Cahalan recalls that wearing her own clothes mattered. She recalls that being gently bathed by nursing assistants mattered. 

 

Those acts were not trivial; they restored a sense of self in a period where nearly everything else had been stripped away. She describes those caregivers with the same emotional weight she gives to the physician who solved the case.

 

She also recounts moments of dehumanization. In a teaching setting, large groups sometimes discussed her case in front of her and her family in ways that made her feel like an object of instruction rather than a person. One especially painful example involved bedside discussion of removing her ovaries before the family had been properly prepared for that possibility. The clinical issue may have been legitimate, but the manner of presentation was not.

 

The implication is not that academic discussion should stop. It is that patients and families need context, communication, and respect. The facts alone are not enough. People often remember how they were made to feel.

 

 

Interdisciplinary Care as a Diagnostic Necessity

Another major lesson from the conversation is that interdisciplinary collaboration was essential. Cahalan argues that psychiatry and neurology cannot be treated as sealed compartments, especially when neurological illness presents with psychiatric features. Siloing off psychiatric symptoms from the rest of the body is dangerous. In her case, it delayed recognition of the full syndrome.

 

She credits the eventual diagnosis to a physician who did more than apply narrow subspecialty expertise. He listened, took time, gathered the full history, and integrated the fragmented observations made by others. Previous clinicians had seen individual features. He assembled the pattern.

 

The interview suggests several practical reasons why this integration can fail. Time pressure is one. Overreliance on templated records or cut-and-paste documentation may be another. A full conversation with the family, especially in a rapidly evolving neurological illness, can reveal a broader timeline that does not fit neatly into a brief visit note. Cahalan specifically notes the value of sitting down with her parents and walking through the progression of symptoms in detail.

 

 

What Patients and Families Can Contribute

The discussion also addresses what patients and families can do when seizure activity is difficult to capture or diagnosis remains uncertain. Cahalan emphasizes documentation: recording events on a phone when possible, writing down timing, noting food, alcohol, sleep deprivation, mental state, and possible triggers. The host agrees and expands that idea, pointing to the value of detailed pattern recognition over time.

 

This is especially important because seizures can be difficult to capture conclusively. A normal EEG between events does not resolve the question. Neither does a nondiagnostic recording end the clinical story if the events continue. In complex cases, history, witness accounts, video, and careful documentation may all support the broader evaluation.

 

The role of family in Cahalan’s own case was fundamental. She was not able to advocate for herself reliably. Her parents documented changes, asked questions, and remained physically present. She describes that support system as essential. Their willingness to seek explanation without being intimidated by authority was also part of what kept the diagnostic process moving.

 

A Lasting Lesson for Neurology, Psychiatry, and EEG Care

This conversation resonates because it does not reduce a difficult case to a single message. It is simultaneously about autoimmune encephalitis, seizure recognition, EEG monitoring, diagnostic uncertainty, bedside manner, and the institutional realities of hospital medicine.

 

Its clearest lesson is that seizures created the opening through which a broader neurological diagnosis became possible. Without them, Cahalan might have remained fully within a psychiatric frame. 

 

But the interview also argues for something larger: when psychiatric symptoms, seizure-like events, and unexplained neurological changes coexist, clinicians must resist premature closure.

 

That work requires technical tools such as EEG and video monitoring. It also requires the less measurable parts of care: time, listening, humility, family history, interdisciplinary thinking, and respect for the patient’s dignity. In cases where psychiatry and neurology overlap, those elements are not secondary. They are part of how the diagnosis is made.

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This Content Is Most Useful For:

  • Epileptologists evaluating seizure-like disorders
  • Neurologists diagnosing unexplained seizure events
  • Neurocritical care clinicians interpreting neuropsychiatric presentations
  • EEG technologists involved in video-EEG monitoring
  • Clinicians working in epilepsy monitoring units
  • Psychiatry and neurology teams evaluating overlapping psychiatric and neurological symptoms

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FAQ

How did seizures affect Susannah Cahalan’s path to diagnosis?

Seizures were a major reason she was evaluated by neurology and placed on a monitoring unit. Although her psychiatric symptoms were the most prominent part of the illness, seizure activity shifted attention toward neurological causes and helped open the path to the correct diagnosis.

 

Was Cahalan’s seizure activity always captured as a classic generalized seizure on EEG?

No. She describes multiple events being recorded during her hospitalization, but not a fully captured classic generalized convulsion. The discussion emphasizes that clinically important seizure activity may not always appear in the most familiar form.

 

What does the discussion say about psychogenic non-epileptic seizures?

The episode argues that PNES should still be taken seriously. Even when an event is not epileptic on EEG, it still reflects a real clinical problem and should not be dismissed as unimportant.

 

What made anti-NMDA receptor encephalitis difficult to diagnose at the time?

At the time of Cahalan’s illness, the condition had only recently been described and named. It was not yet widely recognized, and her psychiatric presentation led to early diagnostic framing that obscured the underlying neurological process.

 

What does this conversation suggest about the role of interdisciplinary care?

It suggests that collaboration between neurology, psychiatry, and other clinical teams is essential in complex neuropsychiatric illness. The correct diagnosis emerged when one clinician integrated the full picture rather than viewing the case through a single specialty lens.

 

Content Source

This article is based on a discussion from the CortiCare Podcast featuring Susannah Cahalan on anti-NMDA receptor encephalitis, seizures, EEG monitoring, psychiatric misdiagnosis, and the clinical lessons behind Brain on Fire.

 
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