Compulsive Symptoms Research Articles

Striving for the perfect diet? The mediating role of perfectionism in the relationship between obsessive compulsive symptoms and traits of Orthorexia Nervosa

BackgroundOrthorexia Nervosa (ON) is a disordered eating style involving an unhealthy obsession with ‘healthy’ or ‘clean’ eating. Its aetiology is still poorly understood and is not yet recognised in diagnostic manuals. While ON has been associated with Obsessive Compulsive (OC) symptoms and perfectionism, no study to date has looked at the relationship between OC symptoms and ON tendencies via perfectionism, or the influence of two facets of perfectionism in this relationship, namely evaluative concern and achievement striving. Examining the potential role of perfectionism helps to understand the aetiology of ON as well as inform potential treatments tailored specifically for ON and comorbid OC symptoms.MethodsIn this cross sectional study, we tested 507 participants (n = 70 males, n = 69 at risk of ON) on questionnaires measuring OC symptoms, perfectionism and ON symptoms. We ran two mediation analyses to look at the overall relationship between perfectionism and OC and ON symptoms (Model 1) as well as the specific contribution of evaluative concern and achievement striving in the relationship between OC and ON symptoms (Model 2).ResultsWe found that perfectionism partially mediated the relationship between OC and ON symptoms. Specifically, we found that while achievement striving and evaluative concern were associated with OC symptoms, only achievement striving was significantly associated with ON symptoms, mediating the relationship between OC and ON symptoms.ConclusionsThis study highlighted the role of one key facet of perfectionism (achievement striving) in the aetiology of ON. The role of achievement striving was indicated as a transdiagnostic construct explaining the link between ON and OC symptoms. These findings are discussed in terms of their implications for treatment models, specifically in terms of the potential role of targeting perfectionism in ON treatment.

Elevated antibody binding to striatal cholinergic interneurons in patients with pediatric acute-onset neuropsychiatric syndrome

Pediatric Acute-onset Neuropsychiatric Syndrome (PANS) is characterized by the abrupt onset of significant obsessive–compulsive symptoms (OCS) and/or severe food restriction, together with other neuropsychiatric manifestations. An autoimmune pathogenesis triggered by infection has been proposed for at least a subset of PANS. The older diagnosis of Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcus (PANDAS) describes rapid onset of OCD and/or tics associated with infection with Group A Streptococcus. The pathophysiology of PANS and PANDAS remains incompletely understood. We recently found serum antibodies from children with rigorously defined PANDAS to selectively bind to cholinergic interneurons (CINs) in the striatum. Here we examine this binding in children with relapsing and remitting PANS, a more heterogeneous condition, collected in a distinct clinical context from those examined in our previous work, from children with a clinical history of Streptococcus infection. IgG from PANS cases showed elevated binding to striatal CINs in both mouse and human brain. Patient plasma collected during symptom flare decreased a molecular marker of CIN activity, phospho-riboprotein S6, in ex vivo brain slices; control plasma did not. Neither elevated antibody binding to CINs nor diminished CIN activity was seen with plasma collected from the same children during remission. These findings replicate what we have seen previously in PANDAS and support the hypothesis that at least a subset of PANS cases have a neuroimmune pathogenesis. Given the critical role of CINs in modulating basal ganglia function, these findings confirm striatal CINs as a locus of interest in the pathophysiology of both PANS and PANDAS.

Randomized trial on the effects of an EMDR intervention on traumatic and obsessive symptoms during the COVID-19 quarantine: a psychometric study.

It has been suggested that the COVID-19 pandemic was a potentially traumatic occurrence that may have induced generalized anxiety and discomfort, particularly in susceptible populations like individuals with mental illnesses. The therapeutic approach known as eye movement desensitization and reprocessing (EMDR) has been shown to be successful in helping patients process traumatic events and restore wellbeing. Nevertheless, little is known about the precise processes through which EMDR fosters symptom recovery. In order to disentangle these issues, we conducted a randomized controlled trial (ClinicalTrials.gov Identifier NCT06110702) with 107 participants who were selected from university hospitals as a sample of investigation. Random assignments were applied to the participants in order to assign them to the experimental and control groups. The experimental group, but not the control group, underwent an 8-week EMDR intervention. Body perception, disgust, and emotions of guilt and shame, as well as mental contamination and posttraumatic and obsessive-compulsive symptoms, were investigated before and after the EMDR intervention. The EMDR intervention was able to improve all of the variables investigated. Path analysis showed that body perception was able to predict both disgust and emotions of guilt and shame. Disgust was able to predict both mental contamination and obsessive-compulsive symptoms, while guilt and shame were able to predict post-traumatic symptoms. EMDR is an effective therapy for the treatment of post-traumatic and obsessive symptoms that acts through the promotion of improvement of the emotions of guilt/shame and disgust, respectively. Implications for clinical practice are examined. https://www.clinicaltrials.gov, identifier NCT06110702.

Mediation analyses of longitudinal data investigating temporal associations between inflated sense of responsibility, obsessive-compulsivesymptoms, and anger suppression.

Cognitive theories emphasize the central role of anger and anger suppression in obsessive-compulsive disorder (OCD). According to these theories, anger suppression is seen as a consequence of OCD, whereas cognitive beliefs, such as an inflated sense of responsibility, are seen as antecedent factors. To extend the findings from cross-sectional studies, the current study investigated the temporal associations between OCD symptoms, an inflated sense of responsibility, and anger suppression. Consistent with cognitive considerations, we hypothesized that OCD symptoms mediate the association between feelings of responsibility and anger suppression. These associations were also explored in patients presenting particularly high checking-related symptoms. Further, the stability of effects beyond controlling for depressive symptoms and medication intake was explored. A total of N = 48 patients with OCD (50% female, M = 32.46 [SD = 10.63]years of age) completed measures on obsessive beliefs, OCD symptoms, and anger suppression at three assessment points: before and after a metacognitive intervention as well as at a follow-up 6 months later. Mediation models investigating symptom associations at these three timepoints were conducted. Exploratory analyses investigating these associations in individuals presenting high checking-related symptoms (n = 20) and testing the stability of effects beyond controlling for depressive symptoms and medication intake were conducted. The sense of responsibility did not significantly predict the level of anger suppression. A temporal association between OCD symptoms (as assessed with the self-report measure) and anger suppression could be evidenced, which was stable beyond controlling for depressive symptoms and medication intake. Against the expectations based on cognitive theories, the sense of responsibility did not predict OCD symptoms. No mediating effect of OCD symptoms was found. In line with cognitive viewpoints, the present study shows that higher OCD symptoms predict higher levels of anger suppression in a longitudinal design, thereby contributing to the suppression of anger. This effect seems to be independent from depressive symptoms and medication intake. The effect of sense of responsibility on OCD symptoms was less clear and could only be found in the subgroup of patients with OCD and checking-related symptoms, who generally presented higher levels of responsibility. Overall, this is the first study demonstrating temporal associations between OCD symptoms and anger suppression. Acknowledging that anger and anger suppression may be a consequence of OCD symptoms and may also affect aspects of psychotherapy, which can ultimately inform future adjustments to psychotherapeutic treatment.

The Role of Obsessive Compulsive Traits in Fibromyalgia: Is Pain-Related Obsessive Ideation Involved in Pathogenesis?

Background and Objectives: Fibromyalgia syndrome (FMS) is defined as a chronic pain syndrome that is characterized by widespread pain, tenderness, and diffuse stiffness. In addition, neuropsychological symptoms such as fatigue, sleep disorders, poor mood, cognitive impairment, and headaches are often reported. Many reports have addressed the coexistence of affective disorders and anxiety with FMS, yet few have focused on its association with obsessive compulsive disorder (OCD). We investigated the occurrence of classical patterns of OCD in participants with FMS and assessed their effect on pain perception and functional impairment. Material and Methods: The research population included 37 patients diagnosed with FMS, treated at the Rheumatology Clinic in the Sheba Medical Center, Tel-Hashomer, Israel. We used validated questionnaires including a demographic questionnaire, a questionnaire on average and maximal pain intensity, the Eysenck Personality Questionnaire-Revised (EPQ-R), the Perceived Stress Scale, the Pain Catastrophizing Scale, the Pain Obsessive questionnaire, and the Yale-Brown Obsessive Compulsive Scale (Y-BOCS). Results: Patients with FMS were found to have intrusive and obsessive thoughts regarding pain for several hours every day, causing a high degree of anxiety and high levels of pain, catastrophizing, and magnification, leading to helplessness and functional impairment. In total, 27% of the patients reported severe malfunction due to pain and pain ideation, and 49% demonstrated mild obsessive compulsive symptoms that were strongly correlated with pain intensity and functional impairment. Conclusions: Obsessive compulsive thinking patterns contribute to pain magnification and to the cognitive aspects of fibromyalgia syndrome.

Executive Functions’ Alterations In Obsessive-Compulsive Disorder: A Systematic Literature Review

Obsessive-compulsive disorder (OCD) is a debilitating neuropsychiatric disorder characterized by persistent obsessive and compulsive symptoms. Dysfunctions in two inhibitory systems related to cognitive and behavioral processes are believed to be associated with the pathophysiology of OCD. These dysfunctions can affect not only the cognitive and behavioral symptoms, but also the neuropsychological deficits observed in this disorder, such as attention, memory, planning, and decision-making. This study presents a systematic literature review aiming to investigate alterations in executive functions in individuals with OCD. The search was conducted in the Scopus and Scielo databases, resulting in a final sample of 13 articles that met the inclusion criteria. The results indicated deficiencies in executive functions and non-verbal memory in patients with OCD when compared to healthy control groups. However, there were inconsistencies in the results across studies, possibly due to the variety of tests used and the complexity of the disorder. Therefore, it is important to consider factors such as cultural differences, medication use, and socioeconomic factors when interpreting the results, as these aspects can influence the study outcomes. Additionally, there are still gaps in understanding the alterations in executive functions in patients with OCD, requiring further research for a better comprehension of this relationship.

Comparison of autogenous and reactive type obsessive-compulsive disorders in terms of clinical characteristics: A meta-analysis study

Obsessive-compulsive disorder (OCD) has been divided into two subgroups autogenous and reactive types, based on obsessive symptoms. To our knowledge, no meta-analysis study compares sociodemographic and clinical characteristics. Investigation of the differences between the two groups in terms of these basic characteristics may provide information about the accuracy of this classification. This is the first meta-analysis to examine gender, age at onset and some clinical differences between patients with autogenous and reactive OCD. Electronic bibliographic databases of Scopus and PubMed were searched up to March 2024. Random effect models were conducted for this meta-analysis. The analysis was carried out using the standardized mean difference as the outcome measure. Publication bias was evaluated using the Begg and Eggers funnel plot, and fail-safe N calculation using the Rosenthal approach. The current meta-analysis summarizes the data from primary studies comparing the gender rates, age at onset of OCD, severity of obsessive-compulsive symptoms, and severity of depression and anxiety symptoms between autogenous and reactive types of OCD. The results of this study showed that the rate of male gender was higher in the autogenous type OCD. In addition, increased severity of anxiety, and depression were associated with autogenous type OCD. There was no significant difference between groups regarding the severity of obsessive-compulsive symptoms. Age of OCD onset findings were insignificant, but excluding an outlier study suggested earlier onset in autogenous type OCD. These results support the distinction between autogenous and reactive type OCD.

Willingness to experience unpleasant thoughts, emotions, and bodily sensations at admission does not predict treatment outcome in inpatients with obsessive–compulsive disorder

BackgroundSome persons with obsessive–compulsive disorder (OCD) refuse or drop out of treatment because of the aversive nature of exposure and response prevention therapy when they have to face and tolerate unpleasant thoughts, emotions, and bodily sensations. Indeed, one study suggested that a higher willingness to experience unpleasant thoughts, emotions, and bodily sensations (WTE) predicts a better treatment outcome, but this finding has not been replicated yet.MethodsWe examined whether WTE at admission predicted treatment outcome in a sample of 324 inpatients with OCD who received a multimodal treatment that included cognitive-behavioral therapy with exposure and response prevention sessions.ResultsObsessive–compulsive symptoms (based on OCD-specific self-report questionnaires) decreased with medium-to-large effect sizes (all ps < 0.001) and global functioning (based on therapist ratings) increased with a large effect size (d = 1.3, p < 0.001) from admission to discharge. In contrast to previous findings, however, WTE did not predict treatment outcome (all ps > 0.005). The effect of WTE on treatment outcome remained non-significant when controlling for any comorbidity, age, sex, length of stay, and antidepressant medication and was not moderated by these variables.ConclusionsResults indicate that higher WTE at the beginning of inpatient treatment does not facilitate improvements in obsessive–compulsive symptoms from admission to discharge. However, they also indicate that lower WTE at the beginning of inpatient treatment does not adversely affect treatment outcome, that is, even patients who indicate that they are unwilling to face the negative experiences associated with exposure and response prevention can still achieve considerable symptom reductions.

Childhood Trauma, Mentalization and Obsessive Compulsive Symptoms in a Non-Clinical Sample: A Mediation Analysis Study.

Obsessive and compulsive symptoms (OCS) are cross-cutting psychopathological manifestations frequently detected in a variety of clinical and non-clinical samples. It has been suggested that impaired mentalization abilities and traumatic experiences during childhood may be relevant etiopathogenetic factors in the development of OCS. The purpose of the current study was to cross-sectionally assess these variables in a non-clinical sample, testing the mediational role of mentalization abilities in the association between childhood trauma (CT) and OCS. 667 participants (488 females; mean age= 29.76 ± 11.87 years; age range: 18-80) answered a survey including the Childhood Trauma Questionnaire, the Mentalization Questionnaire and the Obsession-Compulsion subscale of the Brief Symptom Inventory. The mediation model was significant for the total effect (p< .001), showing that CT was positively associated with OCS (95% CI: .006; .019) and that this association was mediated by reduced levels of mentalization capacity (95% CI: .003; .009). Such results were significant controlling for potential sociodemographic and clinical confounding variables. The findings contribute to elucidate the complex relationships between CT, mentalization capacity, and OCS, supporting the possibility that mentalization impairments, arising from CT, may affect top-down control mechanisms thus contributing to the development of OCS.

The importance of examining early maladaptive schemas in the diagnosis and treatment of obsessive-compulsive disorder.

The aim of the study was twofolded: to identify the early maladaptive schemas characteristic of obsessive-compulsive disorder in a Hungarian sample and, to examine the presence and severity of comorbid anxiety and depressive symptoms in the light of early maladaptive schemas. 112 participants (58 men and 54 women) diagnosed with OCD were involved in the study. The questionnaire package consisted of the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), the State-Trait Anxiety Inventory (STAI), the Beck Depression Inventory (BDI), the Penn State Worry Questionnaire (PSWQ) and the Schema Questionnaire (SQ). We identified five early maladaptive schemas with a direct effect on the manifestation of obsessive-compulsive symptoms: Mistrust-Abuse, Inferiority/Shame, Dependence/Incompetence, Insufficient Self-Control/Self-Discipline and Entitlement/Grandiosity (reversed effect). Based on the severity of the early maladaptive schemas, three significantly different groups could be identified in our sample: patients with mild, moderate and high schema-values. Among the groups significant differences can be found in the appearance and severity of compulsive symptoms, as well as in the presence of anxiety and depressive symptoms. But contrary to our expectations, not the severity, but the numberof the early maladaptive schemas showed a stronger correlation with the symptom variables. An additional result of our study derives from canonical correlation, addressing the relationship among early maladaptive schemas, OCD symptoms, anxiety and depressive symptoms from a new perspective. The results highlight that OCD is only one and not the most serious consequence of personality damage, indicated by early maladaptive schemas. The results of our study suggest that obsessive-compulsive disorder can be divided into several subgroups, which can be separated in terms of symptom severity, comorbid psychiatric symptoms and personality impairment patterns. The relationship between OCD symptom severity and personality impairment seems to be not directly proportional. Our results strengthen the new dimensional view of OCD, which can determine the selection of the appropriate therapeutic treatment method beyond the diagnostic process.

Action sequence learning, habits, and automaticity in obsessive-compulsive disorder

This study investigates the goal/habit imbalance theory of compulsion in obsessive-compulsive disorder (OCD), which postulates enhanced habit formation, increased automaticity, and impaired goal/habit arbitration. It directly tests these hypotheses using newly developed behavioral tasks. First, OCD patients and healthy participants were trained daily for a month using a smartphone app to perform chunked action sequences. Despite similar procedural learning and attainment of habitual performance (measured by an objective automaticity criterion) by both groups, OCD patients self-reported higher subjective habitual tendencies via a recently developed questionnaire. Subsequently, in a re-evaluation task assessing choices between established automatic and novel goal-directed actions, both groups were sensitive to re-evaluation based on monetary feedback. However, OCD patients, especially those with higher compulsive symptoms and habitual tendencies, showed a clear preference for trained/habitual sequences when choices were based on physical effort, possibly due to their higher attributed intrinsic value. These patients also used the habit-training app more extensively and reported symptom relief post-study. The tendency to attribute higher intrinsic value to familiar actions may be a potential mechanism leading to compulsions and an important addition to the goal/habit imbalance hypothesis in OCD. We also highlight the potential of smartphone app training as a habit reversal therapeutic tool.

Action sequence learning, habits, and automaticity in obsessive-compulsive disorder

This study investigates the goal/habit imbalance theory of compulsion in obsessive-compulsive disorder (OCD), which postulates enhanced habit formation, increased automaticity, and impaired goal/habit arbitration. It directly tests these hypotheses using newly developed behavioral tasks. First, OCD patients and healthy participants were trained daily for a month using a smartphone app to perform chunked action sequences. Despite similar procedural learning and attainment of habitual performance (measured by an objective automaticity criterion) by both groups, OCD patients self-reported higher subjective habitual tendencies via a recently developed questionnaire. Subsequently, in a re-evaluation task assessing choices between established automatic and novel goal-directed actions, both groups were sensitive to re-evaluation based on monetary feedback. However, OCD patients, especially those with higher compulsive symptoms and habitual tendencies, showed a clear preference for trained/habitual sequences when choices were based on physical effort, possibly due to their higher attributed intrinsic value. These patients also used the habit-training app more extensively and reported symptom relief post-study. The tendency to attribute higher intrinsic value to familiar actions may be a potential mechanism leading to compulsions and an important addition to the goal/habit imbalance hypothesis in OCD. We also highlight the potential of smartphone app training as a habit reversal therapeutic tool.

Related metacognitions, desire thinking and identity differentially predict compulsion and withdrawal symptoms in problematic Instagram use

Work has identified that metacognitive thought results in desire-based thinking and perpetuates the magnitude and severity of maladaptive behaviour including problematic social media use, and also that one’s ingroup identity is related to increasing problematic behaviour. No evidence has ascertained the relative contribution of these as related differential factors in the experience of problematic social media use. The current study explored the comparative importance of components of desire thinking, positive and negative metacognitions and dimensions of ingroup identity on degree of problematic use among 147 current Instagram users. Results showed that for predicting general problematic Instagram use negative metacognitive beliefs and the verbal perseverance component of desire-based thinking were significant. Importantly, however, different factors appeared to be important for predicting distinct aspects of problematic Instagram. For compulsivity indicators, negative metacognitions and verbal perseveration were essential, whereas for the withdrawal component identity centrality (and no other dimensions of identity) and imaginal prefiguration emerge as the sole independent predictors.

Lose yourself: feared self, emotion regulation, and obsessive-compulsive and eating disorder symptomatology

ABSTRACT Objectives Feared self refers to an individual’s “possible” self that has undesired qualities or characteristics and has been linked to obsessive compulsive symptoms. However, feared self may also relate to eating disorder pathology, given the importance of views of self in the disorder. Method This questionnaire-based study in a non-clinical sample (N = 238) examined whether a feared self would independently predict the symptom severity of obsessive-compulsive disorder (OCD) and eating disorders (ED), while controlling for potential comorbidity of the respective symptoms. A secondary aim was to examine whether emotion regulation moderated the relationship between a feared self and OCD symptoms and a feared self and ED symptoms. Results Feared self was a significant unique predictor of symptoms of both disorders. Emotion regulation was not found to significantly moderate the relationship between feared self and either OCD or ED symptoms, although emotion regulation was a significant independent predictor of the respective symptoms. Conclusions The study is one of the first to show that a feared self uniquely predicts ED symptoms, over-and-above coexisting OCD symptoms. As such, the results provide support for feared self as a potential transdiagnostic factor. Implications and limitations are discussed.

Cognitive Impulsivity in Anorexia Nervosa in Correlation with Eating and Obsessive Symptoms: A Comparison with Healthy Controls.

Impulsivity in eating disorders (ED) has been historically focused on bingeing-purging symptoms, evidencing lower levels in restricting subtypes. In the recent literature, obsessive-compulsive disorder (OCD) has been described as characterized by high cognitive impulsivity. This specific impulsivity factor has been rarely studied in anorexia nervosa (AN). In this study, 53 inpatients with anorexia nervosa and 59 healthy controls completed the following questionnaires: the Barratt Impulsiveness Scale (BIS-11), the Obsessive-Compulsive Inventory (OCI), the Eating Disorders Inventory-2 (EDI-2), the State-Trait Anxiety Inventory (STAI), and the Beck Depression Inventory (BDI). AN individuals showed significantly increased levels of cognitive instability but no difference in global score and other subscales of impulsivity compared to the healthy controls. Among AN individuals, cognitive instability emerged as being associated with the global score and obsession subscale of the OCI. It was also significantly associated with interoceptive awareness and impulse regulation. Cognitive instability was the main predictor of obsessive thoughts and behaviors in AN. Our study supports the hypothesis of AN as being characterized by high cognitive instability and adds the result that the cognitive domain of impulsivity may be associated with the presence of obsessive symptoms, specifically obsessive thoughts.

Treating Obsessive Compulsive Disorder in Adolescents and Adults with Down Syndrome: Results from a Scoping Rapid Review.

Adolescents and adults with Down syndrome are noted to display symptoms and behaviors consistent with a diagnosis of Obsessive Compulsive Disorder. While evidenced-based interventions, including psychopharmacology and therapeutic interventions including exposure and response prevention, exist and effectively treat obsessive-compulsive symptoms in neurotypical populations, less is known about effective treatments for similar presentations in persons with Down syndrome. A scoping rapid review was conducted in April 2023 to determine what treatments are being used to target obsessive-compulsive symptoms and related behaviors in adolescents and adults with Down syndrome, the quality of those treatments, and their alignment with current evidenced-based interventions. A total of eleven articles, all single case or case series, published between 1992 and 2017 were identified describing the treatment of 32 adolescents and adults with Down syndrome and obsessive-compulsive traits and behaviors including: hoarding, cleaning, gross motor compulsions, and food, hygiene, dressing, and checking rituals. Interventions used most often aligned with evidenced-based guidelines for treating obsessive compulsive disorder and included psychopharmacology, psychotherapy, and complementary and alternative medicine. While the outcomes of most interventions yielded partial or significant reduction in symptoms, poor research quality and limited generalizability noted across all studies make it difficult to inform guidelines for caring for this high-needs population. In the future, we believe it is necessary to perform more rigorous research focused on treating obsessive compulsive symptoms in individuals with Down syndrome with sufficient follow-up to fully assess treatment effectiveness.

Transcranial Magnetic Stimulation and Dual Pathology: An Integrative Protocol

IntroductionDual pathology, characterized by the simultaneous presence of substance use disorders and psychiatric disorders, is a topic of growing interest in the scientific community. In particular, obsessive-compulsive disorder (OCD) is a common comorbid psychiatric condition in patients with substance use disorders.ObjectivesTo evaluate the efficacy of rTMS on comorbid disorder symptoms by applying specific protocols for OCD and substance use disorder in a clinical case of dual pathology.MethodsCase Description: A 36-year-old male diagnosed with OCD and habitual cocaine use (an average of 6 times per month). Previous unsuccessful attempts to quit substance use. Undergoing psychotherapy and psychopharmacological treatment for OCD since the age of 22 with no significant clinical improvement.Methodology: The severity of OCD was quantified before and after the intervention using the Yale-Brown Obsessive Compulsive Scale (YBOCS). To assess addictive behavior, the Maudsley Addiction Profile (MAP) was used. During the intervention period, the occurrence of substance use was recorded based on the patient’s and family members’ reports. The intervention involved the administration of an rTMS protocol tailored to the specific case, consisting of the simultaneous application, using a double-cone coil, of rTMS at 20Hz over the right dorsomedial prefrontal cortex (DMPFC) at an intensity of 100% of the resting motor threshold (RMT) to treat OCD symptoms, followed by intermittent theta burst stimulation (TBS) over the left DMPFC at an intensity of 120% of the RMT to address substance addiction. The patient received a total of 30 sessions at a rate of one session per day, five days a week, for six weeks.ResultsResults: The results showed an improvement in the total score on the YBOCS scale, decreasing from a value of 26 in the pre-intervention assessment to 16 in the post-intervention assessment, representing a reduction of more than 35% from pre- to post-intervention, meeting response criteria. Thus, there was a decrease in both obsessive and compulsive symptoms, with reduced associated distress and increased control. Additionally, throughout the intervention, there was a gradual decrease in substance use, decreasing from an average of 6 monthly instances before treatment initiation to a total of 1 in the month the treatment ended.ConclusionsConclusions: This unique case study represents a therapeutic window for the treatment of patients with comorbid disorders, demonstrating promising preliminary benefits of the combined rTMS intervention for both conditions, especially in the field of addictions.Keywords: rTMS, neuromodulation, obsessive-compulsive disorder, addictionsDisclosure of InterestNone Declared

Pimozide as an effective treatment for obsessive symptoms related to physical discomfort in the context of somatoform symptomatology.

IntroductionThe patient was a 34-year-old male admitted to the psychiatric inpatient unit for high anxiety and suicide ideation due to severe toothache.ObjectivesTo show how the antipsychotic pimozide can be an effective option for the treatment of anxiety and obsessive symptoms around physical complaints within the spectrum of somatoform disordersMethodsCase report and literature reviewResults The patient comes to the emergency room with high anxiety and active self-harming ideation. He reports that for months he has been experiencing mouth pain that is becoming more and more intense. He has seen multiple professionals without finding a cause that justifies the pain. In the past she has a history of multiple ailments (knee, abdominal pain…). He is being treated with sertraline 150, clonazepam 3 mg per day and olanzapine 5 mg at night. During admission, treatment with pimozide up to 4 mg per day was started. The patient is progressively less distressed and with more distance from the ideas about pain, being able to carry out more activities during the day. There is remission of suicidal ideationConclusionsThere is evidence in the literature that the use of pimozide was effective in different psychotic disorders. It has been seen to reduce the intensity of symptoms in cases of delusional disorders with delirum of somatic type or those such as delusions by parasitization. The use of pimozide has also been effective in the treatment of complex tic disorder. In this case it is effective and could be explained by the close relationship of osbsesive symptoms with psychotic symptoms.Disclosure of InterestNone Declared

480 Neuropsychiatric Symptom Clusters in behavioral variant frontotemporal dementia: The Role of Early Anxiety/Depression on Functional Progression

OBJECTIVES/GOALS: To identify empiric neuropsychiatric symptom (NPS) clusters in behavioral variant frontotemporal dementia and to determine the role of early anxiety/depression on functional progression. METHODS/STUDY POPULATION: Analyses were conducted using data from the ARTFL-LEFFTDS Longitudinal Frontotemporal Lobar Degeneration (ALLFTD) study, an established consortium with an ongoing cohort study of FTD patients across 18 clinical sites which includes comprehensive cognitive, neuropsychiatric, and structural neuroimaging data. A polychoric cluster analysis was performed on subjects from the ALLFTD cohort [applewebdata%3A//044E463E-34DA-4677-9EDC-B8309D14C337#_msocom_1] with early-stage disease (N=145, male 61%, median age 62 years) in order to identify empiric NPS clusters. Cox proportional hazard regression was then used to examine the association between early affective symptoms in bvFTD and subsequent functional disabilities adjusted for age, sex, level of education, and FTLD CDR global score. RESULTS/ANTICIPATED RESULTS: We identified a four-factor model as the best fit for the data: (1) an affective cluster with prominent depression, anxiety, agitation, and irritability, (2) a disinhibited symptom cluster with prominent elation and disinhibition, (3) an obsessive symptom cluster with prominent obsessive/ritualistic behavior and hyperorality, and (4) a psychotic symptom cluster with prominent delusions and hallucinations. The hazard of developing impairments in transactions, language, self-care, meal preparation, and incontinence was significantly elevated in those with early affective symptoms (depression/anxiety). DISCUSSION/SIGNIFICANCE: In this study we show that, NPS cluster into four discrete groups: (1) affective symptoms, (2) disinhibited symptoms, (3) obsessive symptoms, and (4) psychotic symptoms. Anxiety and depression are prominent within the affective symptom cluster and are associated with accelerated functional decline in a number of domains.

Schizo - obsessive disorder - separate clinical entity or elusive comorbidity? - a systematic review

IntroductionIn some clinical scenarios obsessive and delusive symptoms exhibit several similarities, making it challenging to differentiate between schizophrenia spectrum disorder (SSD) and obsessive-compulsive disorder (OCD). There are numerous reports of patients suffering from those disorders and manifesting both psychotic and obsession-like features, which makes accurate distinction even more complicated. We found several conflicting theories attempting to elucidate this overlap, one being the existence of the separate clinical entity - schizo-obsessive disorder.ObjectivesThe aim of this study is to consolidate current knowledge, synthesize existing theories and explore diagnostic implications.MethodsWe conducted a systematic literature review following the PRISMA protocol, we scrutinized studies addressing obsession-like symptoms in SSD, psychotic symptoms in OCD, and comorbidity of those disorders. We included peer-reviewed non-interventional studies published in English and Polish from 2013 onwards. The search was performed in the following medical databases: PubMed, Science Direct, Scopus, and Web of Science. Synthesis utilized a narrative approach due to diverse study designs, outcomes and observational nature of the collected data.ResultsWe identified several dozen articles, which revealed a range of diverse findings, often inconclusive, and occasionally conflicting, Although, the collected data indicate the schizo-obsessive spectrum exhibits clinical relevance.ConclusionsThe ambiguity in results emphasizes the necessity for further investigations into pathomechanism of schizophrenia and OCD. Future research, particularly involving children and adolescents, should strive for a comprehensive understanding of the nuanced manifestations of obsessive-like and psychotic symptoms in both disorders, aiding in refining diagnostic criteria and developing effective intervention strategies.Disclosure of InterestNone Declared