Effects of tic-related conversation on rate of tics in two siblings

• We evaluated effects of tic-related conversation on tic rate in two siblings with Tourette’s Syndrome.
• Tic-related conversation exacerbated tic rate for both siblings.

This study examined the effects of tic related conversation on motor and vocal tics in two siblings ages 11 and 12 diagnosed with Tourette’s syndrome. Using a multi-element design, the siblings were exposed to tic related conversation that was directed toward each sibling individually and with both siblings. A non-tic-related conversation served as a control condition. For both siblings, the rate of tics was greater during tic-related conversation conditions relative to control sessions. However, there was some variability in responding across siblings and those results are described in detail. Moreover, results are discussed in terms of implications for science and practice as they relate to tic disorders.