The alternative model of personality disorder is inadequate for capturing obsessive-compulsive personality disorder.

The alternative model of personality disorder (AMPD) included in Section III of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) reconceptualized personality pathology in terms of pathological traits and impairments in functioning. For example, the construct of obsessive-compulsive personality disorder (OCPD) was reconceptualized via the traits of rigid perfectionism as well as at least 2 of perseveration, intimacy avoidance, and restricted affectivity. We review the literature to summarize how effectively the legacy construct of OCPD is captured by the AMPD. We conclude that although the trait of rigid perfectionism is highly related to scores on OCPD measures, the AMPD as a whole fails to adequately account for the broader features of the legacy OCPD construct. Specifically, the AMPD trait model lacks a number of traits, such as workaholism, excessive deliberation, and moral scrupulousness, which are necessary for a fulsome dimensional trait system. These limitations in the inclusion of important traits stem from the AMPD's development process that left out crucial content. We outline how the AMPD could be improved in its ability to account for problems of overcontrolled behavior. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Introduction to the Special Issue: Conceptualization, Assessment, and Treatment of Obsessive-Compulsive Disorder and Co-Occurring Conditions.

Obsessive-compulsive disorder (OCD) has a lifetime prevalence of 1%-2% and typically presents as a chronic condition with significant functional impairment. Comorbidity with OCD is the norm, with 90% of individuals with OCD also meeting diagnostic criteria for a co-occurring condition. Co-occurring conditions can complicate the conceptualization, assessment, and treatment of OCD, such as by intensifying existing symptoms, obscuring differential diagnosis of phenotypically and functionally similar symptoms, and interfering with cognitive behavioral treatment. This two-part special issue reviews extant literature and provides expert advice on conceptualizing, assessing, treating, and researching OCD with co-occurring conditions of depression, posttraumatic stress disorder, eating disorders, schizophrenia, hoarding disorder, panic disorder, obsessive-compulsive personality disorder, and illness anxiety disorder.

Bridging of childhood obsessive-compulsive personality disorder traits and adult eating disorder symptoms: A network analysis approach.

OBJECTIVES: Obsessive-compulsive personality disorder (OCDP) traits are commonly associated with eating disorders (EDs), with evidence demonstrating that these traits predispose and exacerbate the ED illness course. However, limited research has examined the symptomatic interplay between ED and OCDP traits. We used network analysis to (1) identify the most central symptoms in a network comprised of OCPD traits retrospectively assessed in childhood and ED symptoms and (2) to identify symptoms which bridged OCPD traits and ED symptoms. METHODS: Participants were 320 females with an ED (anorexia nervosa n = 227, bulimia nervosa n = 93), who completed the semi-structured EATATE interview and the Eating Disorder Inventory-2. Expected influence (EI) was computed to determine each symptom's influence in the network. Bridge symptoms were identified by computing bridge EI. RESULTS: A regularised partial correlation network showed that ascetism, social insecurity, ineffectiveness, and impulsivity had the highest EI in the OCPD and ED network. With respect to bridging symptoms, interpersonal distrust emerged as a possible bridging node between the OCPD and ED trait/symptom clusters. DISCUSSION: These findings highlight the centrality of non-specific ED symptoms in the ED symptom network and suggest that interpersonal distrust may play a functional role through which childhood OCPD traits and ED symptoms are connected.

Are “not just-right experiences” trait and/or state marker for obsessive-compulsive disorder?

Background and objectives. “Not Just Right Experiences” (NJREs) are common phenomena in individuals with obsessive-compulsive disorder (OCD), involving a feeling that something is ‘not right’ or as it should be. Some evidence suggests that NJREs may be an endophenotypic marker. This study aimed to investigate whether NJREs are a trait marker present in unaffected first-degree relatives of OCD and/or a state marker associated with obsessive-compulsive symptoms. Methods. The study included 51 OCD patients, 47 first-degree relatives and 45 healthy controls. Not Just Right Experiences Questionnaire Revised (NJRE-QR), Frost Multidimensional Perfectionism Scale (FMPS), and Dimensional Obsessive-Compulsive Scale (DOCS) were administered to the participants. Results. There was no significant difference between the first-degree relatives and healthy controls in respect of NJRE-total and NJRE-severity scores. In the hierarchical regression analysis performed in OCD group, the severity of NJREs were associated with the severity of obsessive-compulsive symptoms and the 'doubts about actions' dimension of perfectionism. Conclusions. This is the first study investigating NJREs in relatives of a clinical OCD group. The results of this study support the view that NJREs are state markers for OCD.

Towards a better understanding of adolescent obsessive-compulsive personality traits and obsessive-compulsive symptoms from growth trajectories of perfectionism.

Although there is increasing attention for the interrelationship between obsessive-compulsive personality disorder (OCPD) and obsessive-compulsive disorder (OCD), their shared characteristics in terms of childhood trait antecedents remain understudied. Perfectionism may be a viable candidate trait antecedent, given its role in the clinical manifestation of both OCPD and OCD in adulthood, and the evidence that perfectionism reflects a dispositional tendency observable from childhood onwards. However, little is known about childhood trajectories of perfectionism with prospective links to later OCPD versus OCD. Using latent growth curve modeling, this study explored the baseline and growth of childhood perfectionism in 485 community and referred children (55.5% girls, 7.17-14.78 years old, Mage = 10.74, SD = 1.50) across three waves. Adolescent OCPD traits and OCD symptoms were measured in Wave 4. An overall decreasing trend of perfectionism from childhood through adolescence appeared, without inter-individual differences in growth. Individual differences in baseline levels of childhood perfectionism were significant, and equally predicting adolescent OCPD and OCD outcomes. At a more specific level, childhood perfectionism predicted most strongly the rigid perfectionism component of OCPD, and the orderliness/cleanliness/perfectionism and obsession domain of OCD. This demonstrates the value of childhood perfectionism for understanding differential outcomes of adolescent OCPD traits and OCD symptoms.

Validation of the Five-Factor Obsessive-Compulsive Inventory in a Mental Health Sample.

The Five-Factor Obsessive-Compulsive Inventory (FFOCI) is a recently developed measure of obsessive-compulsive personality disorder (OCPD) based on an established dimensional model of general personality, the five-factor model. The present study aimed to evaluate the construct validity of the FFOCI by examining its associations with both traditional and dimensional diagnostic models of OCPD. This study used an archival data set of mental health patients that employed a multimethod design. A total of 214 individuals (and their nominated informants) completed various personality inventories indexing the Diagnostic and Statistical Manual for Mental Disorders-Fifth edition traditional and Alternative Model of Personality Disorders (AMPD) diagnostic criteria for OCPD, as well as other individual AMPD personality traits deemed conceptually relevant to the FFOCI. The results were generally quite supportive of construct validity. They showed that FFOCI scale scores converged with traditional measures of OCPD and AMPD-OCPD traits and impairment in a conceptually expected manner, with a few exceptions. Overall, it was clear from these findings that the FFOCI takes a broader and more comprehensive approach to the assessment of obsessive-compulsive than traditional Diagnostic and Statistical Manual and AMPD operationalizations.

Aparición de clínica obsesiva tras infarto cerebrovascular. a propósito de un caso / Onset of obsessive symptoms after a cerebrovascular stroke. with regard to a case

Se presenta el caso clínico de un paciente de 72 años sin antecedentes psiquiátricos previos que ingresa en el Servicio de Neurología por infarto cerebral en territorio vertebrobasilar. Durante el ingreso presenta elevada ansiedad secundaria a una ideación obsesiva de contenido erótico con intensa repercusión emocional y conductual. Se inicia tratamiento sintomático con Quetiapina, observándose mejoría progresiva del cuadro hasta la total recuperación del paciente. En el presente artículo se revisa la relación entre las diferentes áreas anatómicas cerebrales y la aparición de clínica obsesiva

A 72 year old male without previous psychiatric history is admitted to the neurology department due to vertebrobasilar stroke. During the stay, the patient manifests a high level of anxiety related to the onset of an erotic obsessive idea with an intense emotional and behavioural repercussion. Symptomatic treatment with quetiapine was started, with a progressive improvement of the symptoms until it's complete resolution. In the present article, we aim to review the relationship between the different brain anatomical areas and the onset of obsessive symptoms

A comparison of symptom dimensions for obsessive compulsive disorder and obsessive compulsive-related disorders.

OBJECTIVE: In this study, it is aimed to determine obsessive compulsive-related disorders (OCRDs) comorbidity among the patients with obsessive compulsive disorder (OCD) and compare patients with OCD with or without comorbid OCRDs in terms of the severity of their OCD symptoms, symptom dimensions, and comorbidity with other axis I disorders. METHODS: The study included 90 patients diagnosed as having OCD according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR). The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) diagnostic criteria for OCRDs were used to determine the presence of OCRDs. In order to determine the symptom dimensions and severity of these individuals' OCD symptoms, we administered the Dimensional Obsessive Compulsive Scale (DOCS) and The Yale-Brown Obsessive Compulsive Scale (Y-BOCS). RESULTS: In our study, 20% of the patients with OCD simultaneously met the criteria for at least one OCRD, we also found that a significantly greater proportion of this group were men. None of the mentioned disorders was associated with any symptom dimensions we evaluated using DOCS. In addition, no differences were found in the severity of OCD symptoms and comorbid axis I disorders between the group with comorbid OCRDs and the group without comorbid OCRDs. DISCUSSION: There was no significant relationship between the symptom dimensions of OCD and OCRDs. It is found that OCRD comorbidity does not increase the severity of OCD symptoms and the prevalence of an axis I diagnosis.

[A clinical and genetic study of impulsive-compulsive disorders in patients with Parkinson's disease]. / Kliniko-geneticheskoe issledovanie impul'sivno-kompul'sivnykh rasstroistv u bol'nykh bolezn'iu Parkinsona.

AIM: To evaluate the frequency and spectrum of impulsive-compulsive disorders (ICDs) in patients with Parkinson's disease (PD) without dopaminergic medication and among patients receiving dopaminergic replacement therapy, depending on personality type, genetic factors, and to determine the influence of ICDs on the development of other non-motor manifestations of the disease. MATERIAL AND METHODS: Three hundred and eighty-six consecutive patients with idiopathic PD, including untreated patients with PD (de novo) and patients receiving dopaminergic replacement therapy during one year, were examined. ICDs were evaluated with QUIP and diagnostic criteria. Personality type and temperament features were assessed by the Eysenck personality inventory. Genotyping for the single nucleotide polymorphism rs141116007 in the DBH gene involved in the pathogenesis of PD and ICDs was performed. RESULTS AND CONCLUSION: ICDs were identified in 20.2% patients with PD and in 4% patients of the de novo group. The most common (10.36%) behavioral disorder was a binge eating. The frequency of ICDs among patients with PD before the onset of dopamine replacement therapy increased by 1.03 times after one year treatment. Smoking and young age were risk factors for ICDs (p<0.05). The results of the study allowed the determination of social and neuropsychological risk factors for ICDs in patients with PD. The account of these features, as well as early detection of ICDs using screening questionnaires may help to personalize treatment of patients with PD and to prevent the risk of developing comorbid non-motor manifestations of the disease.

Estudio neuropsicológico de la dismorfia muscular y del trastorno obsesivo-compulsivo / Neuropsychological Study of Muscle Dysmorphia and Obsessive-Compulsive Disorder

Resumen El objetivo de este estudio fue explorar y comparar las funciones ejecutivas (FE) y la memoria no verbal de un grupo de varones fisicoconstructivistas con sintomatología de dismorfia muscular (DM), con un grupo de varones que presentan sintomatología del trastorno obsesivo-compulsivo (TOC) y un grupo de control. Aplicando pruebas neuropsicológicas se encontró que los fisicoconstructivistas muestran una capacidad limitada de las FE en el control inhibitorio y flexibilidad cognitiva, con déficits visuoespaciales moderados en la memoria no verbal, mientras que el grupo con TOC presentó mayores deficiencias de rendimiento en las mismas habilidades. Se sugiere realizar más estudios para evitar un conocimiento fragmentado o contradictorio entre la DM y el TOC.

Abstract The objective of this study was to explore and compare Executive Functions (EF) and non-verbal memory of a group of male bodybuilders who have symptoms of Muscle Dysmorphia (MD) with a group of men who have Obsessive Compulsive Disorder symptoms (OCD) and a control group. It was found by administering neuropsychological tests that the bodybuilders show a limited capacity of EF in the inhibitory control and cognitive flexibility, also moderate visuospatial deficits in non-verbal memory, whereas the group with OCD had higher performance deficiencies in the same skills. It is suggested to conduct more studies to avoid fragmented or contradictory knowledge between MD and OCD.

Examining the DSM-5 alternative model of personality disorders operationalization of obsessive-compulsive personality disorder in a mental health sample.

The current study evaluated the continuity between the diagnostic operationalizations of obsessive-compulsive personality disorder (OCPD) in the Diagnostic and Statistical Manual for Mental Disorders, Fifth Edition, both as traditionally operationalized and from the perspective of the alternative model of personality disorders. Using both self-report and informant measures, the study had the following four aims: (a) to examine the extent to which self-report and informant data correspond, (b) to investigate whether both self-report and informant measures of the alternative model of OCPD can predict traditional OCPD, (c) to determine if any traits additional to those proposed in the alternative model of OCPD can predict traditional OCPD, and (d) to investigate whether a measure of OCPD-specific impairment is better at predicting traditional OCPD than are measures of general impairment in personality functioning. A mental health sample of 214 participants was recruited and administered measures of both the traditional and alternative models of OCPD. Self-report data moderately corresponded with informant data, which is consistent with the literature. Results further confirmed rigid perfectionism as the core trait of OCPD. Perseveration and workaholism were also associated with OCPD. Hostility was identified as a trait deserving further research. A measure of OCPD-specific impairment demonstrated its ability to incrementally predict OCPD over general measures of impairment. (PsycINFO Database Record

Emotion dysregulation, impulsivity and personality disorder traits: A community sample study.

The present study was designed to test an emotion regulation framework to understand individual differences in personality disorder (PD) traits in a non-clinical sample. Specifically, we tested whether: selected dimensions of emotion dysregulation were differentially related to PD traits; and whether emotion dysregulation and impulsivity had independent associations with PD traits. A community sample of 399 individuals (mean age = 37.91; 56.6% males) completed self-report measures of PDs, emotion dysregulation and impulsivity. Emotion dysregulation facets and impulsivity had uniform bivariate associations with PD traits, but also evidenced unique associations in multiple regression analyses. Nonacceptance of emotional responses was the emotion dysregulation dimension underlying a wide array of PD. A limited repertoire of effective emotion regulation strategies was characteristic of cluster C PD, whereas emotional unawareness distinctly predicted schizoid PD. Antisocial PD traits were uniquely related to difficulties controlling impulsive behavior when upset. Finally, histrionic, narcissistic, and obsessive-compulsive PD were related to better self-reported emotion regulation. Impulsivity further explained a significant amount of variance in schizotypal, antisocial, borderline (positively), and obsessive-compulsive PD traits (negatively). If replicated in clinical samples, our findings will support the usefulness of targeting both emotional dysregulation and impulsivity in PDs psychotherapy.

[Koro syndrome : when culture interacts with psychopathology]. / Le syndrome de Koro : quand la culture interagit avec la psychopathologie.

Koro syndrome is a psychiatric disorder specific to certain Asian cultures. It is characterized by acute and intense anxiety with fear of a retraction of the penis into the body and resultant death. We report the case of a 43-year-old Moroccan male presenting with persistent anxiety associated with avoidance behaviors and a chronic belief that his genitalia may shrink or disappear and lead to his death. This impacted his professional and family functioning. The diagnosis of culture-bound syndrome was considered although the presenting syndrome was chronic and sporadic. The Moroccan culture, which attributes a great importance to the male sex, would explain this syndrome.

Le syndrome de Koro est un trouble psychiatrique spécifique à certaines cultures asiatiques. Il est caractérisé par la survenue brutale d'une anxiété intense associée à la peur d'une rétraction du pénis dans le corps qui peut mener à la mort. Nous rapportons le cas d'un patient marocain âgé de 43 ans, qui présente une anxiété persistante avec des conduites d'évitement associées à une chronique croyance que ses organes génitaux pourraient se rétrécir ou disparaître et conduire à sa mort, ce qui a impacté son fonctionnement professionnel et familial. Le diagnostic d'un trouble lié aux concepts culturels semble le plus probable, en se référant à la culture marocaine qui attribue une grande importance au sexe masculin, même s'il s'agit d'un cas chronique et sporadique.

ICD-11 and DSM-5 personality trait domains capture categorical personality disorders: Finding a common ground.

OBJECTIVE: The five personality disorder trait domains in the proposed International Classification of Diseases, 11th edition and the Diagnostic and Statistical Manual of Mental Disorders, 5th edition are comparable in terms of Negative Affectivity, Detachment, Antagonism/Dissociality and Disinhibition. However, the International Classification of Diseases, 11th edition model includes a separate domain of Anankastia, whereas the Diagnostic and Statistical Manual of Mental Disorders, 5th edition model includes an additional domain of Psychoticism. This study examined associations of International Classification of Diseases, 11th edition and Diagnostic and Statistical Manual of Mental Disorders, 5th edition trait domains, simultaneously, with categorical personality disorders. METHOD: Psychiatric outpatients ( N = 226) were administered the Structured Clinical Interview for DSM-IV Axis II Personality Disorders Interview and the Personality Inventory for DSM-5. International Classification of Diseases, 11th edition and Diagnostic and Statistical Manual of Mental Disorders, 5th edition trait domain scores were obtained using pertinent scoring algorithms for the Personality Inventory for DSM-5. Associations between categorical personality disorders and trait domains were examined using correlation and multiple regression analyses. RESULTS: Both the International Classification of Diseases, 11th edition and the Diagnostic and Statistical Manual of Mental Disorders, 5th edition domain models showed relevant continuity with categorical personality disorders and captured a substantial amount of their information. As expected, the International Classification of Diseases, 11th edition model was superior in capturing obsessive-compulsive personality disorder, whereas the Diagnostic and Statistical Manual of Mental Disorders, 5th edition model was superior in capturing schizotypal personality disorder. CONCLUSION: These preliminary findings suggest that little information is 'lost' in a transition to trait domain models and potentially adds to narrowing the gap between Diagnostic and Statistical Manual of Mental Disorders, 5th edition and the proposed International Classification of Diseases, 11th edition model. Accordingly, the International Classification of Diseases, 11th edition and Diagnostic and Statistical Manual of Mental Disorders, 5th edition domain models may be used to delineate one another as well as features of familiar categorical personality disorder types. A preliminary category-to-domain 'cross walk' is provided in the article.

Diagnostic validity of early-onset obsessive-compulsive disorder in the Danish Psychiatric Central Register: findings from a cohort sample.

OBJECTIVES: Employing national registers for research purposes depends on a high diagnostic validity. The aim of the present study was to examine the diagnostic validity of recorded diagnoses of early-onset obsessive-compulsive disorder (OCD) in the Danish Psychiatric Central Register (DPCR). DESIGN: Review of patient journals selected randomly through the DPCR. METHOD: One hundred cases of OCD were randomly selected from DPCR. Using a predefined coding scheme based on the Children's Yale Brown Obsessive Compulsive Scale (CYBOCS), experienced research nurse or child and adolescent psychiatrists assessed each journal to determine the presence/absence of OCD diagnostic criteria. The detailed assessments were reviewed by two senior child and adolescent psychiatrists to determine if diagnostic criteria were met. PRIMARY OUTCOME MEASUREMENTS: Positive predictive value (PPV) was used as the primary outcome measurement. RESULTS: A total of 3462 children/adolescents received an OCD diagnosis as the main diagnosis between 1 January 1995 and 31 December 2015. The average age at diagnosis was 13.21±2.89 years. The most frequent registered OCD subcode was the combined diagnosis DF42.2. Of the 100 cases we examined, 35 had at least one registered comorbidity. For OCD, the PPV was good (PPV 0.85). Excluding journals with insufficient information, the PPV was 0.96. For the subcode F42.2 the PPV was 0.77. The inter-rater reliability was 0.94. The presence of the CYBOCS in the journal significantly increased the PPV for the OCD diagnosis altogether and for the subcode DF42.2. CONCLUSION: The validity and reliability of International Classification of Disease 10th revision codes for OCD in the DPCR is generally high. The subcodes for predominant obsessions/predominant compulsions are less certain and should be used with caution. The results apply for both children and adolescents and for both older and more recent cases. Altogether, the study suggests that there is a high validity of the OCD diagnosis in the Danish National Registers.

The Relationship between Obsessive Compulsive Personality and Obsessive Compulsive Disorder Treatment Outcomes: Predictive Utility and Clinically Significant Change.

BACKGROUND: The evidence regarding whether co-morbid obsessive compulsive personality disorder (OCPD) is associated with treatment outcomes in obsessive compulsive disorder (OCD) is mixed, with some research indicating that OCPD is associated with poorer response, and some showing that it is associated with improved response. AIMS: We sought to explore the role of OCPD diagnosis and the personality domain of conscientiousness on treatment outcomes for exposure and response prevention for OCD. METHOD: The impact of co-morbid OCPD and conscientiousness on treatment outcomes was examined in a clinical sample of 46 participants with OCD. RESULTS: OCPD diagnosis and scores on conscientiousness were not associated with poorer post-treatment OCD severity, as indexed by Yale-Brown Obsessive Compulsive Scale (YBOCS) scores, although the relative sample size of OCPD was small and thus generalizability is limited. CONCLUSION: This study found no evidence that OCPD or conscientiousness were associated with treatment outcomes for OCD. Further research with larger clinical samples is required.

Psychometric properties of the Short Leyton Obsessional Inventory-Child Version in a community sample of Spanish children and adolescents / Propiedades psicométricas del Inventario Obsesivo de Leyton para Niños Versión Corta en una muestra comunitaria de niños y adolescentes

El objetivo de este estudio fue analizar las propiedades psicométricas del Short LOI-CV en una muestra española comunitaria. Los participantes fueron 914 niños y adolescentes con edad media de 13.01 años (varones = 51.3%). El AFE mostró un modelo de tres factores compuesto por los dominios Obsesiones, Compulsiones y Limpieza. Tanto la puntuación total como las subescalas mostraron una adecuada consistencia interna. La versión española mostró buena fiabilidad test-retest y moderada validez convergente y discriminante. Los participantes más jóvenes (8 a 10 años) obtuvieron medias más altas que la escala Total y distintas subescalas que los mayores (grupo de 11-13 y de 14-18 años). Se encontraron también diferencias significativas respecto al sexo, siendo los varones los que mayores medias mostraron en la escala de compulsiones. Pese a que es necesaria más investigación, estos resultados sugirieron que la versión en español del Short LOI-CV mostró un buen rendimiento psicométricos para evaluar los síntomas obsesivo-compulsivos en niños y adolescentes en población comunitaria

The aim of the current study was to analyze psychometric properties of the Short LOI-CV in Spanish community sample. Participants were 914 children and adolescents with a mean age of 13.01 years (51.3% males). The EFA yielded a three-factor model representing Obsessions, Compulsions, and Cleanliness dimensions. Both, total score and subscales showed an adequate internal consistency. The Spanish version also exhibited good test-retest reliability and moderate convergent and discriminant validity. The younger participants (from 8 to 10 years) obtained higher means for total score and subscales than older participants (groups 11-13 and 14-18 years). Significant differences related to gender were also observed since males obtained higher means in Compulsions subscale. Despite more research is required, this results suggested that Spanish version of the Short LOI-CV showed a good psychometric performance assessing obsessive-compulsive symptoms in community population

Obsessive compulsive personality disorder in Progressive Supranuclear Palsy, Multiple System Atrophy and Essential Tremor.

INTRODUCTION: aim of the study was to evaluate the presence of the Obsessive Compulsive Personality Disorder (OCPeD) in Multiple System Atrophy (MSA), Progressive Supranuclear Palsy (PSP) and Essential Tremor (ET) and in a group of healthy subjects. METHODS: patients affected by MSA, PSP and ET diagnosed according to currently accepted diagnostic criteria and a group of healthy controls were enrolled in the study. Patients with cognitive impairment were excluded from the study. The Structured Clinical Interview for Personality Disorders-II (SCID-II) has been performed to evaluate the presence of personality disorders (PeDs). The diagnosis of OCPeD was confirmed by a psychiatric interview. RESULTS: fifteen MSA patients (8 men and 7 women; aged 62.9 ± 7.6 years), 14 PSP patients (8 men and 6 women; aged 69.8 ± 4.4 years), 16 ET patients (10 men and 6 women; aged 70.4 ± 6.4 years) and 20 healthy subjects (10 men and 10 women; aged 65.5 ± 6.0 years) were enrolled. OCPeD was recorded in 5 (35.7%) PSP patients, 2 (13.3%) MSA patients, 2 (12.5%) ET patient and 2 (10%) controls. CONCLUSION: a low frequency of OCPeD, close to those recorded in healthy subjects, was recorded in both MSA and ET patients. Conversely an higher frequency of OCPeD, similar to PD was found among PSP patients, supporting the possibility of an impairment of common basal ganglia network possibly involving the orbito-frontal circuits.