Functional Neurological Disorder Patients Face Disbelief Despite Real Symptoms

Millions of people suffer from a common brain disorder that doctors and friends too often dismiss as merely something happening in their heads. Patients with functional neurological disorder face these cruel words constantly by the time they finally sit down for an appointment at a doctor's office. Their medical team tells them the results of every brain scan look perfectly normal, while an electroencephalogram measuring electrical activity offers reassurance instead of answers.

The good news you are told is that you do not have epilepsy or any other standard condition on their charts. Yet no test can explain why a patient simply cannot walk without falling over or why one leg refuses to stop trembling violently. Seizures leave some individuals exhausted for hours or even days, creating a painful gap between solid test results and very real physical suffering. Many begin to wonder if they are truly imagining these debilitating symptoms because of the lack of visible evidence on standard equipment.

This long-standing disconnect left patients with few answers for decades until modern neuroscience finally offered a different explanation today. Scientists now understand that every movement, sensation, and emotion starts within your brain before reaching your muscles or skin. The central question never involved whether the brain was involved in creating distressing physical symptoms, but rather exactly how it creates them. Brain imaging studies suggest that networks responsible for movement, attention, emotion, body awareness, and sensory processing constantly communicate with one another to create thoughts, perceptions, and actions.

Rather than acting independently, these internal systems work together closely to produce daily life experiences. How these brain networks communicate normally or occasionally miscommunicate remains a central question researchers are trying to answer about functional neurological disorder now. One of the leading theories helping explain this condition is known as predictive processing, which suggests the brain constantly makes predictions instead of simply reacting to the world around it. Your mind combines past experiences with information from your surroundings and signals from inside your body to create every single everyday experience you have today.

Think about walking up a flight of stairs without consciously calculating where to place every foot or which muscles to contract during the climb. Your brain has already predicted the movement before you actually make it in most situations, making these predictions remarkably accurate for daily living. As new information reaches your mind, the system compares it with existing expectations shaped by current and past experiences along with signals from the body directly. If the new data does not match up with prior beliefs, the brain then updates its predictions to reflect reality accurately once again. Scientists call this mismatch prediction error a critical process that keeps our bodies moving correctly through complex environments.

Researchers believe disruption of this updating process may be one mechanism behind functional neurological disorder in specific patients today. Although there is no single cause for this condition, factors such as injury, illness, pain, or significant stress may make the brain more likely to rely on prior predictions instead of new information constantly. If the mind places too much weight on past expectations or certain bodily signals, it can make adjusting predictions in response to fresh data significantly more difficult over time. For example, after an injury has healed completely, the brain may continue predicting that a specific movement or activity remains unsafe despite no ongoing harm to the body whatsoever. This continued fear could contribute to persistent weakness or difficulty walking even when everything appears physically fine upon inspection by experts.

Patients suffer from symptoms that are involuntary, physically real, and profoundly disabling despite no damage occurring to the brain or nervous system. Doctors often tell them their brain scan came back normal and their electroencephalogram looks reassuring because it measures electrical activity without showing faults. This pattern creates confusion when a person cannot move an arm or leg due to weakness or paralysis even though imaging shows nothing wrong with the tissue.

Our current understanding of functional neurological disorder as a disconnect between the brain and body marks a dramatic shift from how doctors perceived the mind over the past century. History labels this condition hysteria or conversion disorder because researchers once thought symptoms originated primarily from psychological factors rather than biological changes in neural structures. Each name reflected the best explanation medicine had at the time but did not represent what people were actually experiencing inside their bodies.

Many of the symptoms now recognized as part of the disorder were primarily attributed to the emotional and psychological state of women and subsequently dismissed by male physicians. Symptoms can include tremors, spasms, jerky body movements, trouble walking or balancing, slurred speech, sudden stuttering, and vision or hearing loss that feels very real to the sufferer. These previous explanations reflect broader gaps and biases in how doctors approached women's health concerns throughout history, contributing to decades of stigma and misunderstanding around functional neurological disorder and other conditions affecting the public.

As neuroscience advanced, researchers began recognizing that symptoms could arise from changes in brain function rather than visible changes to the brain such as injury or abnormalities seen through standard imaging tests. Today's models focus more on brain networks and the dynamic, interconnected relationship between the brain, body, and environment which helps explain why a person might stumble without a broken bone.

Functional neurological disorder is more common than many people may realize given the lack of public awareness about these specific symptoms worldwide. A conservative estimate indicates that a minimum of 500,000 Americans and approximately 100,000 Brits are affected by this condition while people across the lifespan experience these troubling signs. Worldwide estimates suggest roughly 7 to 12 million people have the disorder though a true number is hard to pinpoint due to misdiagnosis and under-recognition in clinical settings.

Researchers estimate that mortality rates among patients with the condition are more than twice that of the general population when complications arise or secondary issues develop over time. Yet despite its prevalence, access to specialized care remains limited because the condition exists in a treatment desert likely due to a mismatch in supply and demand for specialists and limited funding from health systems. Many healthcare professionals receive little to no formal education about functional neurological disorder during their training which leaves them unprepared to handle these complex cases effectively.

Delayed diagnosis is only one consequence of misunderstanding this condition since patients face severe emotional and physical tolls before getting proper help. Patients are frequently told they are exaggerating, faking symptoms, seeking attention or that everything is just anxiety when the problem is rooted in how their brain functions under stress. These misconceptions not only perpetuate stigma around the condition, they also delay appropriate treatment and expose people to unnecessary medical interventions that do nothing to fix the underlying issue.

Patients often become the ball in a game of medical ping-pong where psychiatry refers them to neurology because the symptoms appear neurological while neurology refers them back to psychiatry because their scans are normal. In this frustrating cycle, the only loser is the patient who gets shuffled between departments without finding answers or validation for their suffering. People with functional neurological disorder experience disproportionately high use of healthcare services as they cycle repeatedly through emergency departments and specialty clinics in search of solutions. Some receive medications they don't need because doctors try to treat invisible symptoms with drugs meant for different ailments entirely.

Many patients face invasive medical procedures before doctors finally identify their true condition. This delay causes unnecessary suffering for those who need answers now.

Individuals with functional neurological disorder frequently battle trauma, anxiety, depression, and post-traumatic stress disorder. Yet many develop these symptoms without ever experiencing a traumatic event in their lives. Both biological, psychological, and social factors contribute to the illness. No single cause explains every case, proving that the path to this condition is complex.

New multidisciplinary clinics are opening across the country while research accelerates at an impressive pace. The treatment landscape for the disorder is evolving rapidly to help the brain learn new patterns. These changes allow patients to process the world in healthier ways again. Psychotherapy, physical therapy, occupational therapy, and speech therapy each play a vital role in retraining disrupted brain networks.

Recovery looks different for everyone depending on their specific needs and history. Growing evidence shows that improvement is definitely possible with the right approach. The most important step forward happens before any therapy even begins though. A healthcare provider must believe their patient first and foremost.

Perhaps the medical community has misunderstood what 'It's all in your head' means all along. While every movement, sensation, emotion, and thought starts within the brain, this does not make symptoms imagined. It simply makes them neurological in nature. For millions living with this disorder, understanding may be the beginning of recovery rather than another dead end.

This article is adapted from The Conversation, a nonprofit news organization dedicated to sharing expert knowledge. Mackenzi Moore served as program manager at the University of Colorado Anschutz while writing the piece. Alexa Lardieri edited the work for the Daily Mail in her role as US health editor.