Background and purpose In 2020, health professionals witnessed a dramatic increase in
referrals of young people with rapid onset of severe tic‐like behaviours. We assembled a …

Background and purpose Between 2019 and 2022, there was a marked rise in
adolescents/young adults seeking urgent help for functional tic‐like behaviours (FTLBs) …

Abstract Purpose of Review The past 3 years have seen an unprecedented increase in
patients with functional tic-like behaviors (FTLB), a previously rare form of functional …

Background and purpose The COVID‐19 pandemic has been associated amongst other
things with a sharp increase in adolescents and young adults presenting acutely with …

Background and purpose Very little is known about the long‐term prognosis of patients with
functional tic‐like behaviours (FTLBs). We sought to characterize the trajectory of symptom …

Background Since the onset of the coronavirus (COVID-19) pandemic, clinicians have
reported an increase in presentations of sudden and new onset tics particularly affecting …

Background Comorbid functional tic‐like behaviors (FTB) have been described only rarely in
patients with Tourette syndrome (TS). Objectives We present the first large sample of …

Background Premonitory urges (PU) are well described in primary tics, but their frequency
and intensity in functional tic‐like behaviors (FTLB) are unclear. Objective To study the …

Starting in 2019, in Germany the first well documented outbreak of mass sociogenic illness
induced by social media (mass social media-induced illness; MSMI) occurred presenting …

During the COVID-19 pandemic, there have been multiple reports about an unforeseen
surge in adolescents and young adults exhibiting sudden onset functional tic-like behaviors …