Preliminary efficacy of cognitive-behavioral therapy on emotion regulation in adults with autism spectrum disorder: A pilot randomized waitlist-controlled study.

Previous studies have demonstrated the clinical utility of cognitive-behavioral therapy in improving emotion regulation in children on the autism spectrum. However, no studies have elucidated the clinical utility of cognitive-behavioral therapy in improving emotion regulation in autistic adults. The aim of the present pilot study was to explore the preliminary clinical utility of a group-based cognitive-behavioral therapy program designed to address emotion regulation skills in autistic adults. We conducted a clinical trial based on a previously reported protocol; 31 participants were randomly allocated to the intervention group and 29 to the waitlist control group. The intervention group underwent an 8-week program of cognitive-behavioral therapy sessions. Two participants from the intervention group withdrew from the study, leaving 29 participants (93.5%) in the group. Compared with the waitlist group, the cognitive-behavioral therapy group exhibited significantly greater pre-to-post (Week 0-8) intervention score improvements on the attitude scale of the autism spectrum disorder knowledge and attitude quiz (t = 2.21, p = 0.03, d = 0.59) and the difficulty describing feelings scale of the 20-item Toronto Alexithymia Scale (t = -2.07, p = 0.04, d = -0.57) in addition to pre-to-follow-up (Week 0-16) score improvements on the emotion-oriented scale of the Coping Inventory for Stressful Situations (t = -2.14, p = 0.04, d = -0.59). Our study thus provides preliminary evidence of the efficacy of the group-based cognitive-behavioral therapy program on emotion regulation in autistic adults, thereby supporting further evaluation of the effectiveness of the cognitive-behavioral therapy program in the context of a larger randomized clinical trial. However, the modest and inconsistent effects underscore the importance of continued efforts to improve the cognitive-behavioral therapy program beyond current standards.

A 2-year longitudinal follow-up of quantitative assessment neck tics in Tourette's syndrome.

BACKGROUND: Neck motor tics in Tourette's syndrome can cause severe neck complications. Although addressed in a few longitudinal studies, the clinical course of Tourette's syndrome has not been quantitatively assessed. We had previously developed a method for quantifying the angular movements of neck tics using a compact gyroscope. Here, we present a follow-up study aimed at elucidating the clinical course of neck tics at both the group and individual levels. METHODS: Eleven patients with Tourette's syndrome from our previous study participated in the present study, and their neck tics were recorded during a 5-min observation period. The severity of neck symptoms was assessed using the Yale Global Tic Severity Scale. The peak angular velocities and accelerations, tic counts, and severity scores in our previous study (baseline) and the present study (2-year follow-up) were compared at the group and individual levels. The individual level consistency between baseline and follow-up were calculated using intra-class correlation coefficients (ICCs, one-way random, single measure). RESULTS: At the group level, no significant change was observed between baseline and follow-up. At the individual level, angular velocity (ICC 0.73) and YGTSS scores (ICC 0.75) had substantial consistency over the two time points, and angular acceleration (ICC 0.59) and tic counts (ICC 0.69) had moderate consistency. CONCLUSIONS: The intensity and frequency of neck tics did not change over time. Therefore, quantification of angular neck motor tics will aid in identifying patients with neck tics at high risk for severe neck complications.

The Gilles de la Tourette Syndrome-Quality of Life Scale (GTS-QOL): A Validation in Japanese Patients.

Background: Though Gilles de la Tourette's syndrome (GTS) has significant impact on the quality of life of its patients, measures of health-related quality of life (HR-QOL) specific to adolescents and adults with GTS were not developed until recently. The present study provides evidence on the validity of the Gilles de la Tourette Syndrome-Quality of Life Scale (GTS-QOL), the first disease-specific HR-QOL instrument for GTS patients, for the first time in an East Asian sample. Methods: One hundred and two Japanese individuals aged 13 and above with GTS were included in our study. Internal consistency was evaluated using Cronbach's alpha. The 4-factor structure of the GTS-QOL was assessed using confirmatory factor analysis, using goodness of fit indices, factor loadings of each questionnaire item, and covariances between factors. Validity was assessed using interscale correlations. Convergent and discriminate construct validity was evaluated using correlations with other scales such as the 28-item General Health Questionnaire, the Yale Global Tic Severity Scale, and the short version of the Padua Inventory. Results: Scaling assumptions were met. Internal consistency reliability was high, with a Cronbach's alpha of 0.96. Confirmatory factor analysis revealed sufficient factor loadings and goodness of fit. All measures of goodness of fit corroborated the fit of the 4-factor model. Standardized covariances between factors in the confirmatory factor analysis were >0.8. There were significant correlations with other well-validated scales, and thus convergent and discriminate construct validity was sufficient. Conclusion: The GTS-QOL is a valid and reliable instrument to measure disease-specific HR-QOL of GTS patients in Japan.

Premonitory Awareness Facilitates Tic Suppression: Subscales of the Premonitory Urge for Tics Scale and a New Self-Report Questionnaire for Tic-Associated Sensations.

Awareness of premonitory urge in Tourette syndrome (TS) may facilitate tic suppression; however, previous studies have not supported this observation. We aimed to clarify the relationship between tic-associated sensation and tic suppression by identifying the subtypes of tic-associated sensations, including the Premonitory Urge for Tics Scale (PUTS). We developed a new questionnaire called "Rumination and Awareness Scale for tic-associated sensations" (RASTS) to assess the two additional aspects of tic-associated sensations: the intensity of somatosensory hyperawareness and the ability to identify signals of emerging tics. Sixty-two individuals with TS participated in the study (mean age = 19.2 ± 10.3 years). All participants completed the RASTS, PUTS, and Tic Suppression Scale. Of all participants, 41 were evaluated by the Yale Global Tic Severity Scale (YGTSS), while another group of 41 completed both the Leyton Obsessional Inventory-Child Version (LOI-CV) and the Tics Symptom Self-Report (TSSR). Factor analyses including nine items of the PUTS and the RASTS were conducted, and their relationships with patients' tic suppression ability were examined. The results support using RASTS for the two supposed dimensions (rumination about sensation and premonitory awareness) for assessing the two different tic-associated sensations, and PUTS for three dimensions for assessing the two types of quality of premonitory urges and intensity of premonitory urges. Premonitory awareness correlated with tic suppression ability. Conversely, rumination about sensation, PUTS total score, and the three subscales of PUTS correlated with obsessive-compulsive symptoms. In summary, being aware of signals for emerging tics facilitated self-initiated tic suppression, while ruminative tic-associated sensations did not. This study provides new insights into behavioral therapy for tics by identifying two distinct aspects of tic-associated sensations that include premonitory urges.

Changes in Sensory Phenomena, Tics, Obsessive-Compulsive Symptoms, and Global Functioning of Tourette Syndrome: A Follow-Up After Four Years.

Sensory phenomena and related features of Tourette syndrome are related to poorer quality of life. Therefore, sensory phenomena might also have a negative impact on global functioning. However, the influence of sensory phenomena, tics, and obsessive-compulsive symptoms (OCS) on global functioning after several years of usual treatment has not been investigated. Twenty out of 45 Japanese patients with Tourette syndrome who had previously undergone an evaluation of these clinical features were assessed again after an average of four years. We conducted a panel of assessments for premonitory urges, broader sensory phenomena, tic severity, OCS, and global functioning. Based on Pearson's correlation coefficient, current global functioning was significantly negatively correlated with previous tics and marginally negatively correlated with previous broader sensory phenomena. Current global functioning was marginally correlated with change in tics. Change in global functioning was significantly correlated with change in OCS and marginally correlated with change in premonitory urges. Due to the small sample size, it was not possible to use a multiple regression analysis to conclude that sensory phenomena, tics, and OCS predict global functioning in adolescents and adults with TS. However, it was suggested that further investigation of this relationship would be meaningful.

The effects of comorbid Tourette symptoms on distress caused by compulsive-like behavior in very young children: a cross-sectional study.

BACKGROUND: Many children 4 to 6 years old exhibit compulsive-like behavior, often with comorbid Tourette symptoms, making this age group critical for investigating the effects of having comorbid Tourette symptoms with compulsive-like behavior. However, these effects have not yet been elucidated: it is unclear whether having comorbid tics with compulsive-like behavior leads to lower quality of life. This cross-sectional study aims to investigate the effect of comorbid Tourette symptoms on distress caused by compulsive-like behavior in very young children. METHODS: Self-administered questionnaires were distributed to guardians of children aged 4 to 6 attending any of the 59 public preschools in a certain ward in Tokyo, Japan. The questionnaire contained questions on the presence of Tourette symptoms, the presence of specific motor and vocal tics, frequency/intensity of compulsive-like behavior, and the distress caused by compulsive-like behavior, which was rated on a scale of 1 to 5. Additionally, questions on autism spectrum disorder (ASD) traits, attention-deficit/hyperactivity disorder (ADHD) traits, internalizing behavior traits, and externalizing behavior traits were included in the questionnaire as possible confounders of distress caused by compulsive-like behavior. Wilcoxon rank-sum tests were conducted to compare the distress caused by compulsive-like behavior and frequency/intensity of compulsive-like behavior between children in the Tourette symptoms group and the non-Tourette symptoms group. Furthermore, a stepwise regression analysis was performed to assess the effects of the independent variables on distress caused by compulsive-like behavior. Another stepwise regression analysis was performed to assess the relationship between distress caused by compulsive-like behavior and the presence of five specific motor and vocal tics. RESULTS: Of the 675 eligible participants, distress due to compulsive-like behavior was significantly higher in children in the Tourette symptoms group compared to the non-Tourette symptoms group (2.00 vs 1.00, P < 0.001). Stepwise regression analysis showed that frequency/intensity of compulsive-like behavior, being in the Tourette symptoms group, ASD traits, and internalizing behavior traits were predictors of distress due to compulsive-like behavior. Two specific tics, repetitive noises and sounds and repetitive neck, shoulder, or trunk movements, were significant predictors of distress due to compulsive-like behavior. CONCLUSIONS: Comorbid Tourette symptoms may worsen distress caused by compulsive-like behavior in children 4 to 6 years old, and specific motor and vocal tics may lead to greater distress.

Expert consensus on pharmacotherapy for tic disorders in Japan.

OBJECTIVE: We aimed to clarify the current status of pharmacotherapy for tic disorders and comorbidities in Japan. We used a systematic survey to collate the consensus of Japanese experts and compare it with the recent international evidence. METHODS: We devised a questionnaire on pharmacotherapy for tics and comorbidities and sent it to Japanese experts on tic disorders. Based on the response to the first survey, we revised the questionnaire and conducted a second survey to determine the consensus among the experts on a 4-point Likert scale by the Delphi method. RESULTS: The first survey revealed variability in preferred medications and dosages among the experts in Japan. However, we were able to build a general consensus on pharmacotherapy for tic disorders and comorbidities based on the second survey. Aripiprazole and risperidone were the first- and second-line medication for tic disorders, respectively. Agonists of α-2 adrenergic receptors were seldom prescribed. Fluvoxamine was the first-line medication for comorbid obsessive-compulsive disorder, and atomoxetine for comorbid attention deficit/hyperactivity disorder. CONCLUSIONS: This study will help Japanese physicians choose medications for tic disorders more judiciously and will improve the quality of tic pharmacotherapy in Japan.

Sensory phenomena and obsessive-compulsive symptoms in Tourette syndrome following deep brain stimulation: Two case reports.

Here, we assess sensory phenomena (SP) and obsessive-compulsive symptoms (OCS) in two patients with refractory Tourette syndrome (TS) before and after deep brain stimulation (DBS) targeting the centromedian-parafascicular complex (CM-Pfc)-ventral oral nuclei of the bilateral thalami. Based on changes in these clinical features, we also aimed to elucidate useful information regarding the use of DBS in TS. We administered the Yale Global Tic Severity Scale (YGTSS) to assess tics, the Premonitory Urge for Tics Scale (PUTS) for premonitory urges, the University of São Paulo Sensory Phenomena Scale (USP-SPS) for broader SP, the Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS) for OCS, and the Global Assessment of Functioning (GAF) scale for global functioning. We report on two male patients who showed consistent improvement in tics, premonitory urges, and global functioning two years after DBS. In contrast, there were differences between the patients in broader SP, including "just right" perceptions, and OCS. Our results suggest that systematic assessment of a wide range of SP and OCS dimensions is necessary to elucidate the usefulness of DBS in TS.

Self-initiated coping with Tourette's syndrome: Effect of tic suppression on QOL.

OBJECTIVE: Because of the semi-voluntary nature of tics, patients with Tourette' syndrome (TS) often report self-initiated coping with tics. Our goals were to understand the experiences of self-initiated coping with tics by individuals with TS (e.g., suppression frequency, suppression ability, and side effects of tic suppression), and investigate the effects of tic control on quality of life (QOL). METHOD: One hundred participants with TS (38 children and 62 adults) answered a questionnaire concerning tic control, QOL, and other clinical characteristics. RESULT: Fifty-eight percent of the participants always or frequently tried to suppress tics daily. In contrast, over 90% felt uncomfortable or incomplete when they suppressed tics and needed concentration or extra effort to suppress them. Thirty-four percent could suppress tics for less than one minute and 65% could suppress tics for less than 10min. Higher subjective satisfaction with tic control was positively correlated with life satisfaction and QOL. CONCLUSION: Individuals with TS often attempt self-initiated coping in their daily lives, especially through tic suppression, despite experiencing subjective discomfort and being aware that the duration of tic suppression is often limited. Moreover, it was found that their subjective satisfaction with tic control and effective tic suppression might have a positive influence on their life satisfaction and QOL. Thus, self-initiated coping with tics is vital for improving the QOL of individuals with TS and intervention aimed at enhancing subjective satisfaction with tic control could help manage TS.

Sensory phenomena related to tics, obsessive-compulsive symptoms, and global functioning in Tourette syndrome.

OBJECTIVES: Sensory phenomena, including premonitory urges, are experienced by patients with Tourette syndrome (TS) and obsessive-compulsive disorder (OCD). The goal of the present study was to investigate such phenomena related to tics, obsessive-compulsive symptoms (OCS), and global functioning in Japanese patients with TS. METHODS: Forty-one patients with TS were assessed using the University of São Paulo Sensory Phenomena Scale (USP-SPS), the Premonitory Urge for Tics Scale (PUTS), the Yale Global Tic Severity Scale (YGTSS), the Dimensional Yale-Brown Obsessive-Compulsive Scale (DY-BOCS), and the Global Assessment of Functioning (GAF) Scale. RESULTS: USP-SPS and PUTS total scores were significantly correlated with YGTSS total and vocal tics scores. Additionally, both sensory phenomena severity scores were significantly correlated with DY-BOCS total OCS scores. Of the six dimensional OCS scores, the USP-SPS scores were significantly correlated with measures of aggression and sexual/religious dimensions. Finally, the PUTS total scores were significantly and negatively correlated with GAF scores. CONCLUSIONS: By assessing premonitory urges and broader sensory phenomena, and by viewing OCS from a dimensional approach, this study provides significant insight into sensory phenomena related to tics, OCS, and global functioning in patients with TS.

The impact of tics, obsessive-compulsive symptoms, and impulsivity on global functioning in Tourette syndrome.

This study investigated the relationships between tics, obsessive-compulsive symptoms (OCS), and impulsivity, and their effects on global functioning in Japanese patients with Tourette syndrome (TS), using the dimensional approach for OCS. Fifty-three TS patients were assessed using the Yale Global Tic Severity Scale, the Dimensional Yale-Brown Obsessive-Compulsive Scale, the Impulsivity Rating Scale, and the Global Assessment of Functioning Scale. Although tic severity scores were significantly and positively correlated with OCS severity scores, impulsivity severity scores were not significantly correlated with either. The global functioning score was significantly and negatively correlated with tic and OCS severity scores. Of the 6 dimensional OCS scores, only aggression scores had a significant negative correlation with global functioning scores. A stepwise multiple regression analysis showed that only OCS severity scores were significantly associated with global functioning scores. Despite a moderate correlation between tic severity and OCS severity, the impact of OCS on global functioning was greater than that of tics. Of the OCS dimensions, only aggression had a significant impact on global functioning. Our findings suggest that it is important to examine OCS using a dimensional approach when analyzing global functioning in TS patients.

Impact of obsessive-compulsive symptoms in Tourette's syndrome on neuropsychological performance.

AIM: Although inconsistencies in neuropsychological impairments in Tourette's syndrome (TS) have been discussed with respect to comorbid disorders, such as obsessive-compulsive disorder, few studies have focused on the specific dimensions of obsessive-compulsive symptoms (OCS) related to TS, such as aggression and symmetry. The aim of this study was to explore the impact of specific TS-related OCS on neuropsychological performance. METHODS: A series of neuropsychological tasks examining attention and executive functioning were performed in groups of 33 TS participants and 18 healthy controls. The neuropsychological performance of TS with Aggression OCS (n = 11) were compared to TS without Aggression OCS (n = 22) and controls by using MANCOVA controlling for age. In the same way as Aggression, we compared the performance of three groups by Symmetry: TS with Symmetry OCS (n = 14), TS without Symmetry OCS (n = 19) and controls. RESULTS: TS participants with Aggression OCS tended to make more perseverative errors than those without. Global OCS severity and tic severity did not correlate with any neuropsychological performances. No significant differences were detected between TS participants with and without Symmetry OCS. CONCLUSION: Neuropsychological deficits in TS might be affected not by global OCS severity but by specific TS-related OCS.