FND

Trial By Error: A Letter to Psychological Medicine about Inflated FND Rate Claims

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By David Tuller, DrPH The journal NeuroImage: Clinical, an Elsevier title, recently agreed to correct the false statement that a 2010 study found functional neurological disorder to be the second-most-common diagnosis at outpatient neurology clinics. To the journal’s credit, it responded positively within days of receiving a letter about the matter from a group of …

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Trial By Error: A Letter Requesting Corrections of Inflated Prevalence Rates in Nine More FND Papers

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By David Tuller, DrPH Several colleagues and I recently wrote to the journal NeuroImage: Clinical to request a correction in a 2021 article about functional neurological disorder (FND). The article included the false claim that a seminal 2010 study found that FND was the second-most-common diagnosis at outpatient neurology clinics. In fact, FND—called conversion disorder …

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Trial By Error: FND Experts Agree To Correct Inflated Prevalence Claim

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By David Tuller, DrPH For years, experts in functional neurological disorder (FND) have cited a seminal study in their field to claim that the diagnosis was the second-most-common presentation at outpatient neurology clinics, with a prevalence of 16%. This claim was, and is, categorically untrue. The Scottish Neurological Symptoms Study (SNSS), which yielded multiple papers …

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Trial By Error: A Letter Regarding Inflated Prevalence Rates for Functional Neurological Disorder

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By David Tuller, DrPH I have posted previously about how papers on functional neurological disorder (FND) have routinely mis-cited a seminal 2010 study in asserting that the diagnosis is the second-most-common presentation at neurology clinics, with a rate of 16%. In fact, the 2010 study found that only 5.5% had FND, the new name for …

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Trial By Error: Questions About the Prevalence of Functional Neurological Disorder and the Research on Hoover’s Sign for Functional Leg Weakness

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By David Tuller, DrPH(This is a long-ish post. Sorry! It covers two complicated issues. I want to thank an intrepid source for help with this.) I have great sympathy for patients diagnosed with functional neurological disorder (FND). Their symptoms can be seriously disabling and their plight has long been neglected and dismissed by the medical …

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Trial By Error: Mt Sinai’s David Putrino on Long Covid and Functional Neurological Disorder

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By David Tuller, DrPH David Putrino is a neuroscientist and physical therapist at New York’s Mt Sinai Health System, where he is director of rehabilitation innovation. Over the last three years, he has worked extensively with patients experiencing prolonged symptoms after an acute bout of Covid-19, or what has become known as long Covid (LC). …

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