ADHD	Attention-Deficit Hyperactivity Disorder
CBIT	Comprehensive behavioral intervention for tics
CNS	Central Nervous System
CSTC	Cortico–striato–thalamo-cortical circuitry
DCI	Diagnostic Confidence Index
DTI	Diffusion tensor imaging
DSM-5	The American Psychiatric Diagnostic and Statistical Manual of Mental Disorders
OCD	Obsessive–compulsive disorder
SF-MPQ-Z	McGill Pain Questionnaire-2
TS	Tourette Syndrome
VAS	Visual Analog Scale
YGTSS	Yale Global Tic Severity Scale) and Visual Analog Scale