Understanding Tics and Habit Reversal Training in Children
This study aims to understand more about tics (sudden, fast movements and sounds that people do and make without meaning to) in children aged 8 to 12 who have had tics for at least one year. Researchers want to see if the timing of a tic is connected to how long it's been happening, how well someone can control it, and if treatment changes tic timing. The study will also explore if tic timing can predict how well treatment might work. Participants will receive Habit Reversal Training (HRT), a treatment that helps people become more aware of their tics and urges to tic. The study plans to enroll 12 participants.
- Study design
- This interventional study plans to enroll 12 participants aged 8-12. It involves a pre-treatment assessment, four sessions of Habit Reversal Training (HRT), and a post-treatment assessment.
- What's involved
- You would participate in six online visits, including a baseline assessment, four Habit Reversal Training sessions, and a post-treatment assessment. All visits will be video recorded.
- Compensation
- Not stated in the trial record.
- Follow-up
- The primary endpoints are measured at pre-intervention (baseline) and post-treatment assessment, but no specific follow-up duration after treatment is mentioned.
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Clinical Characteristics and Temporal Properties of Individual Tics in Persistent Tic Disorder
At a glance
Conditions
Where it's being run
1 sites across 1 statesStudy leadership
- Michael Himle, PhD · STUDY_CHAIR · University of Utah
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What this trial measures
- Estimates of baseline individual and total tic fractality within free-to-tic (FTT) and differential reinforcement of other behavior (DRO) environmental contingenciesPre-intervention (baseline)
Estimates of individual and total tic fractality at baseline will be obtained using tic time series data (i.e., temporal sequences of the presence or absence of tics) during the three free-to-tic (FTT) and three differential reinforcement of other behavior (DRO) conditions of the reinforced tic suppression task (RTST) administered at baseline (pre-intervention). The degree to which individual and total tic time series' follow the frequency spectrum of pink noise (R\^2i) will be calculated and conditionally aggregated to provide average estimated fractal exponents.
- Voluntary tic suppression success at baselinePre-intervention (baseline)
Voluntary individual and total tic suppression success will be measured by the average proportion of change of individual and total tic frequency from the three free-to-tic (FTT) and three differential reinforcement of other behavior (DRO) conditions of the reinforced tic suppression task (RTST) administered at baseline. Larger differences between the average number of tics observed during FTT and DRO conditions will indicate greater voluntary suppression success.
- Total tic severity at baseline as measured by the Yale Global Tic Severity Scale (YGTSS)Pre-intervention (baseline)
The Yale Global Tic Severity Scale (YGTSS) will be used to measure total tic severity at baseline across five dimensions: number, frequency, intensity, complexity, and interference. Scores range from 0-5 (low-high) on each dimension and are totaled to indicate overall severity during the past week. Scores are summed to provide a Total Tic Severity Score ranging from 0-50 (none-severe).
- Total and individual tic severity at baseline as measured by the Parent Tic Questionnaire (PTQ)Pre-intervention (baseline)
The Parent Tic Questionnaire (PTQ) will be used to characterize individual and total tic severity at baseline. The PTQ assesses for the presence of common motor and vocal tics over the past week. Frequency and intensity scores ranging from 1-4 (low, high) are obtained for each endorsed tic, which can be summed to yield an individual tic severity score ranging from 0-8 (low, high).
- Changes in voluntary individual and total tic suppression success pre- and post-interventionPre-intervention (baseline), up to 1 week post intervention
Voluntary individual and total tic suppression success will be measured by the average proportion of change of individual and total tic frequency from the three free-to-tic (FTT) and three differential reinforcement of other behavior (DRO) conditions of the reinforced tic suppression tasks (RTSTs) administered at baseline and post-treatment. Larger differences between the average number of tics observed during FTT and DRO conditions at individual time points will indicate greater voluntary suppression success. Larger differences between estimates of suppression success before and after HRT will indicate greater changes in suppression abilities following treatment.
- Changes in individual and total tic fractality within free-to-tic (FTT) and differential reinforcement of other behavior (DRO) environmental contingencies pre- and post-interventionPre-intervention (baseline), up to 1 week post intervention
Estimates of individual and total tic fractality at baseline and post-intervention will be obtained using tic time series data (i.e., temporal sequences of the presence or absence of tics) during the three free-to-tic (FTT) and three differential reinforcement of other behavior (DRO) conditions of the reinforced tic suppression task (RTST) administered at baseline (pre-intervention) and post-intervention, respectively. The degree to which individual and total tic time series' follow the frequency spectrum of pink noise (R\^2i) will be calculated and conditionally aggregated to provide average estimated fractal exponents at individual time points. Larger differences between fractal exponents before and after HRT will indicate greater changes in tic fractality following treatment.
- Changes in individual and total tic severity pre- and post-intervention as measured by the Yale Global Tic Severity Scale (YGTSS) and Parent Tic Questionnaire (PTQ)Pre-intervention (baseline), up to 1 week post intervention
The Yale Global Tic Severity Scale (YGTSS) measures total tic severity across five dimensions: number, frequency, intensity, complexity, and interference. Scores range from 0-5 (low-high) on each dimension and are totaled to indicate overall severity during the past week. Scores are summed to provide a Total Tic Severity Score ranging from 0-50 (none-severe). The Parent Tic Questionnaire (PTQ) measures individual and total tic severity by assessing for the presence of common motor and vocal tics over the past week. Frequency and intensity scores ranging from 1-4 (low, high) are obtained for each endorsed tic, which can be summed to yield an individual tic severity score ranging from 0-8 (low, high). The YGTSS and PTQ will be used to measure total and individual and total tic severity, respectively, at baseline and post-intervention. Larger differences between YGTSS and PTQ scores before and after HRT will indicate greater changes in tic severity following treatment.