Pharmacological studies

Interesting hypothesis, "Allopregnanolone: The missing link to explain the eects of stress on tic exacerbation?" \citep{34423500a}

Clinical and neuropsychological studies

"Inhibitory Control in Youth with Tourette's Disorder, Attention-Deficit/Hyperactivity Disorder and  their Combination and Predictors of Objective Tic Suppressibility" \citep{34411767}.

Other

Treatment

Psychological interventions

A group therapy study compared CBIT to a control condition with education about tics \citep{33415472}. Group CBIT better reduced tics, especially at 3 months aer the intervention. Children with behavioral problems had less improvement, whereas higher intellectual functioning portended better results. This report adds to previous suggestions that group therapy—which can reach more patients at lower cost—is an effective way to deliver CBIT. 
Homework compliance predicts CBIT treatment success \citep{33770556}.
Mechanisms Underlying Behavior Therapy for Touretteʼs Disorder \citep{Essoe_2021}.
(include?) A pilot study of online mindfulness-based group therapy for adults with tic disorders showed that it was feasible, but with lower adherence to prescribed homework than expected, and only 2 of 5 showed any meaningful improvement \citep{33757602}.
Report on valbenazine development \citep{33682568}.

Medication

https://www.neurologyadvisor.com/conference-highlights/mds-2021/ecopipam-shows-promise-in-tic-reduction-inchildren-with-tourette-syndrome/