\citet{Arbuckle_2022} present new data from the Washington University New Tics study on clinical features in children examined, on average, 4 months after tic onset, who would go on to be diagnosed with TS / CTD. They compare these characteristics to those described in 17 reports on functional tic-like symptoms (FND-tic), who also tend to be evaluated first a few months of symptoms begin. "Stark differences in presentation distinguish the FND-tic patients from typical PTD." Symptoms that best distinguished the groups included movements or vocalizations that were dramatically worse in the presence of others, vs. alone, coprophenomena at presentation, symptoms that dramatically and persistently disrupt the person’s intended actions or communications, and "tic attacks."