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PubMed2005

A randomized controlled trial of Japanese patients with obsessive-compulsive disorder--effectiveness of behavior therapy and fluvoxamine.

BACKGROUND: The aim of this study was to confirm and compare the efficacy of fluvoxamine (the only licensed SSRI for treatment for OCD in Japan) and behavior therapy in treating Japanese patients with OCD. In addition, we investigated predictors of these treatments. METHODS: Thirty-one outpatients meeting the DSM-III-R criteria for OCD without any axis I disorder were randomly assigned to one of three treatment conditions: BT (behavior therapy +/- pill placebo), FLV [autogenic training (a psychological placebo for OCD) +/- fluvoxamine] and control group [autogenic training (psychological placebo) +/- pill placebo] for 12 weeks of treatment. The Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) and the Clinical Global Impression-Improvement Scale (CGI-I) were administered blindly at baseline and week 4, 8 and 12. RESULTS: Twenty-eight patients completed this study. Patients in the BT and FLV groups showed significantly more improvement than those in the control group in the mean score of total Y-BOCS; moreover, the BT group showed significantly more reduction in total Y-BOCS score at the end of treatment than the FLV group (BT > FLV, p < 0.01). Patients with lower baseline total Y-BOCS, past history of a major depressive episode and absence of cleaning compulsion improved more with fluvoxamine. CONCLUSIONS: We confirmed the effectiveness of behavior therapy and fluvoxamine for Japanese patients with OCD. Behavior therapy improved the condition of OCD patients more than fluvoxamine.

Adolescent↗
PubMedDate not supplied

A quick and reliable screening measure for OCD in youth: reliability and validity of the obsessive compulsive scale of the Child Behavior Checklist.

BACKGROUND: The high prevalence and morbidity of obsessive compulsive disorder (OCD) in youth, the secretive nature of the disorder leading to under-recognition, and the lack of specialized child psychiatry services in many areas suggest that a simple, quick, and reliable screening tool to identify cases could be very useful to clinicians who work with children. METHOD: We used 8 items from the Child Behavior Checklist (CBCL), an empirically derived instrument free of clinician bias, to investigate the usefulness of a previously reported CBCL-based obsessive compulsive scale (OCS) by Nelson et al [Nelson EC, Hanna GL, Hudziak JJ, Botteron KN, Heath AC, Todd RD. Obsessive-compulsive scale of the Child Behavior Checklist: Specificity, sensitivity, and predictive power. Pediatrics 2001;108(1):E14] in a separate cohort of youth with OCD. We computed the psychometric properties of the OCS in our sample of youth with OCD and in psychiatric and normal controls, and compared these to the published values. RESULTS: Using the recommended cutoff between the 60th and 70th percentiles of the OCS to best predict the presence of OCD, we found very high sensitivity (92%-78%), specificity (86%-94%), negative predictive value (96%-90%), and positive predictive value (77%-86%). CONCLUSIONS: The OC scale of the CBCL shows good reliability and validity and acceptable psychometric properties to help discriminate youth with OCD.

Case-Control Studies↗
PubMed2025

Obsessive-compulsive disorder with hoarding behavior: unravelling key differences.

OBJECTIVE: Hoarding disorder remains underexplored and poorly understood despite its significant impact on individuals and communities. While historically linked to obsessive-compulsive disorder (OCD), emerging evidence suggests they may be distinct conditions. This study aims to investigate these differences. METHODS: Adults aged 18-88 years old (M = 39.86, SD = 14.86) were part of the Genomic Psychiatry Cohort study, including 1247 individuals with OCD without presumed hoarding disorder (OCD-pHD) and 663 individuals with OCD and presumed hoarding disorder (OCD+pHD). Sociodemographic data were collected, and participants were screened for other psychiatric conditions. All met DSM-5 criteria for OCD, with severity assessed using the Florida Obsessive-Compulsive Inventory and Y-BOCS. Statistical significance was set at p &#x2264; 0.0007, adjusted for multiple comparisons. RESULTS: The OCD+pHD group had significantly lower educational attainment, was more likely to live alone or in supervised living, and less likely to be married. This group also had more severe OCD and poorer insight. All types of obsessions and compulsions were more frequent in the OCD+pHD group, except for obsessions related to harming others. Additionally, the OCD+pHD group had higher rates of major depressive disorder, post-traumatic stress disorder, bipolar disorder, schizophrenia, body dysmorphic disorder, trichotillomania and previous diagnosis and/or symptoms of attention deficit and hyperactivity disorder. No significant difference was found for substance use and Tic/Tourette disorders. CONCLUSIONS: Significant clinical differences were observed between the groups, highlighting the need for further research to improve diagnosis, conceptualization, awareness, and support for individuals with hoarding disorder in the context of OCD.

Humans↗
PubMed1997

Abnormal and normal compulsions.

Previous research by Rachman and de Silva (1978, Behaviour Research and Therapy, 16, 233-248) and by Salkovskis and Harrison (1984, Behaviour Research and Therapy, 22, 549-552) has shown that abnormal and normal obsessions are similar in content. The present study examined whether the same is true for abnormal and normal rituals. A sample of normal subjects (N = 150) were asked about their idiosyncratic rituals. A majority of them (54.7%) indicated that they had such rituals. While these rituals were less frequent, less intense, and less often associated with negative affect than the compulsions of a sample of patients with obsessive-compulsive disorder, differences in terms of content between normal and abnormal rituals were small. Experts often tended to misclassify abnormal compulsions as normal rituals. By and large, the present findings indicate that there is continuity between abnormal and normal compulsions.

Adolescent↗
PubMed1999

Validity of the Obsessive Compulsive Drinking Scale (OCDS): does craving predict drinking behavior?

OBJECTIVE: The Obsessive Compulsive Drinking Scale (OCDS), a 14-item, self-report questionnaire, was developed to measure alcohol-related craving. The OCDS may provide a measure of the state of illness among alcohol-dependent individuals and may have value in predicting subsequent drinking behavior. The present study was conducted to evaluate the factor structure and the concurrent, construct, and predictive validity of the OCDS. METHODS: Data on desire to drink and on drinking behavior were obtained from 127 alcohol-dependent subjects who participated in a 12-week outpatient pharmacotherapy trial and a 3-month posttreatment follow-up. RESULTS: Principal components analysis of the OCDS indicated that three factors best described its structure: obsessions, drinking control and consequences, and alcohol consumption. Data also supported the concurrent and discriminant validity of the OCDS. However, the OCDS total score showed limited validity in predicting drinking during a posttreatment follow-up period. Furthermore, the only empirically derived factor that predicted drinking during this period was the alcohol consumption factor. CONCLUSIONS: As might be expected, the OCDS questions on drinking behavior predict subsequent drinking behavior. However, the instrument does not appear to provide a general measure of alcohol-related illness. The utility of the OCDS in studies of alcoholism treatment outcome requires clearer definition.

Adolescent↗
PubMed1995

Environment-driven responses in progressive supranuclear palsy.

The neurological signs and behaviors that accompany degenerative diseases associated with fronto-striatal dysfunction are incompletely described. We observed several novel environmentally-driven behaviors in seven patients with progressive supranuclear palsy (PSP). All patients had cognitive deficits with greatest impairments on tests of frontal lobe function, and frontal lobe cerebral perfusion was significantly reduced in 4 of the 5 who had single photon emission computed tomography (SPECT) brain scans. Visual grasping, in which a patient's gaze was attracted to an incidental object in the environment such as a TV set or mirror, was preeminent. Once fixed, there was inability to release the gaze and shift to another object. In other instances, removing a table placed in front of a patient or unbuckling of his seat belt would make him stand up, which was impossible on command. Similarly, playing music would induce rhythmic foot beating, which was never obtained on command. There were compulsive utilization behaviors, such as repetitively picking up and replacing the telephone for no apparent reason. As expected, there were signs of heightened facial reflexes, grasp reflexes, apraxia of eyelid opening, echolalia and echopraxia. We postulate that these stimuli-oriented behaviors stem from parietal lobe disinhibition due to fronto-striatal dysfunction.

Aged↗
PubMed1970

Amphetamine: differentiation by d and l isomers of behavior involving brain norepinephrine or dopamine.

d-Amphetamine is markedly more potent an inhibitor of catecholamine uptake by norepinephrine neurons in the brain than is 1-amphetamine, whereas the two isomers are equally active in inhibiting catecholamine uptake by the dopamine neurons of the corpus striatum. In behavioral studies, d-amphetamine is ten times as potent as 1-amphetamine in enhancing locomotor activity, while it is only twice as potent in eliciting a compulsive gnawing syndrome. This suggests that the locomotor stimulation induced by amphetamine involves central norepinephrine, while dopamine neurons play an important role in the induced compulsive gnawing behavior. Assessment of differential actions of d- and 1-amphetamine may be an efficient method to differentiate behaviors involving norepinephrine or dopamine in the brain.

Amphetamine↗
PubMed1994

Stimulus induced behaviours in Tourette's syndrome.

Three cases of Gilles de la Tourette's syndrome (GTS) who experienced different tic related behaviours in response to both external and internal stimuli are described. Such behaviours might represent sensory tics, reflex motor tics, exaggerated startle responses, or obsessive compulsive behaviours. It is suggested that there is a continuum of stimulus induced behaviours, and that, in some cases, separations into individual descriptive entities may be difficult. There also seems to be a continuum between internal and external phenomena that induce the behaviours. Implications for the relation between GTS and obsessive compulsive disorder are also discussed.

Acoustic Stimulation↗
PubMed2005

A family study of obsessive-compulsive disorder with pediatric probands.

Obsessive-compulsive disorder (OCD) is a heterogeneous disorder of unknown etiology. We examined the lifetime history of obsessions, compulsions, and OCD in the first- and second-degree relatives of 35 pediatric probands with OCD and 17 controls with no psychiatric diagnosis. All available first-degree relatives were directly interviewed blind to proband status with two semi-structured interviews. Parents were also interviewed to systematically assess the family psychiatric history of first- and second-degree relatives. Best-estimate lifetime diagnoses were made using all available sources of information. Data were analyzed with logistic regression by the generalized estimating equation method and with robust Cox regression models. The lifetime prevalence of definite OCD was significantly higher in case than control first-degree relatives (22.5% vs. 2.6%, P < 0.05). Compared to controls, case first-degree relatives also had significantly higher lifetime rates of obsessions and compulsions (both P < 0.05). There was no significant difference between case and control second-degree relatives in lifetime rates of OCD. First-degree relatives of case probands with ordering compulsions had a significantly higher lifetime rate of definite and subthreshold OCD than relatives of case probands without ordering compulsions (45.4% vs. 18.8%, P < 0.05). The lifetime prevalence of definite OCD was significantly higher in case first-degree relatives with a history of tics than in case first-degree relatives without a tic history (57.1% vs. 20.9%, P < 0.01). The results provide further evidence that early-onset OCD is highly familial and suggest that two clinical variables are associated with its familial aggregation.

Adolescent↗
PubMed1996

Revision of the Padua Inventory of obsessive compulsive disorder symptoms: distinctions between worry, obsessions, and compulsions.

The Padua Inventory (PI), a self-report measure of obsessive and compulsive symptoms, is increasingly used in obsessive compulsive disorder (OCD) research. Freeston, Ladouceur, Rheaume, Letarte, Gagnon and Thibodeau (1994) [Behaviour Research and Therapy, 32, 29-36], however, recently showed that the PI measures worry in addition to obsessions. In an attempt to solve this measurement problem, this study used a content distinction between obsessions and worry to revise the PI. The revision was constructed to measure five content dimensions relevant to OCD i.e. (1) obsessional thoughts about harm to oneself or others; (2) obsessional impulses to harm oneself or others; (3) contamination obsessions and washing compulsions; (4) checking compulsions; and (5) dressing/grooming compulsions. A total of 5010 individuals participated in the study, 2970 individuals completing the PI and the Penn State Worry Questionnaire (PSWQ) and an additional 2040 individuals completing only the PI. The results provided support for the reliability and validity of the revision. In addition, the revision of the PI was more independent of worry, as measured by the PSWQ, than the original PI. Support was thus found for the validity of the content distinction between obsessions and worry. The importance of this content distinction is also discussed for the evaluation of other hypothesized distinctions between obsessions and worry.

Adult↗