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Stoyan Popkirov, Dr. med.


Universitätsklinikum Knappschaftskrankenhaus Bochum, Ruhr-Universität Bochum

Born in 1986 in Sofia
Studied Medicine at the Ruhr-Universität Bochum


College for Life Sciences


Functional Disorders: the Cinderella Subject of Neurology

One hundred years ago, in World War I, thousands of soldiers across Europe suffered neurological symptoms such as tremors or paralysis due to "shell shock" (known as "Kriegszitterer" in Germany). Initial theories suggested minor brain injury sustained from distant explosions, but soon the disorders were correctly identified as psychologically determined. While the study of functional neurological symptoms (also known as psychogenic or conversion disorder) used to be a major topic in neurology, it was later pushed to the margins of academic and clinical inquiry. However, one in six patients who come to see a neurologist nowadays will have a functional problem. Common manifestations include dissociative seizures, functional dizziness and psychogenic movement disorders. A specialist book that could help practicing neurologists to better understand, diagnose and treat functional neurological disorders would seem to be a useful addition to the German medical literature. My project at the Wissenschaftskolleg will be to write that book.
Several recent advances have moved functional neurological disorders back into the focus of academic neurology. Specific diagnostic signs have been systematically validated and can now replace the exclusion principle that used to guide the diagnostic process. Experimental studies using advanced brain scanning and other modern technology have shed some light on the underlying neurobiology and contributed to the formulation of illness models based on modern neuroscientific frameworks. Lastly, advances are being made in the treatment of these disorders, demonstrating the importance of multidisciplinary approaches. Many of these developments are reported in specialized journals and have yet to reach everyday practice. I aim to prepare a book that will provide state-of-the-art clinical advice rooted in modern neuroscience and evidence-based medicine.

Recommended Reading

Popkirov, S., J. P. Staab, and J. Stone (2018). "Persistent postural-perceptual dizziness (PPPD): a common, characteristic and treatable cause of dizziness." Practical Neurology 18, 1: 5-13.
Popkirov, S., S. Wessely, T. Nicholson, A. Carson, and J. Stone (2017). "Different Shell, Same Shock." BMJ 359:j5621.
Popkirov, S., J. Jungilligens, W. Grönheit, and J. Wellmer (2017). "Diagnosing psychogenic nonepileptic seizures: video-EEG monitoring, suggestive seizure induction and diagnostic certainty." Epilepsy & Behavior 73: 54-58.

Publikationen aus der Fellowbibliothek

Popkirov, Stoyan ( London, 2018)
Complex regional pain syndrome and functional neurological disorders : time for reconciliation

Popkirov, Stoyan ( London [u.a.], 2017)
Persistent postural-perceptual dizziness (PPPD): a common, characteristic and treatable cause of chronic dizziness

Popkirov, Stoyan ( London, 2017)
Different shell, same shock