The Centrality of Doubting and Checking in the Network Structure of Obsessive-Compulsive Symptom Dimensions in Youth.

OBJECTIVE: Obsessive-compulsive disorder (OCD) is a heterogeneous condition with well-established symptom dimensions across the lifespan. The objective of the present study was to use network analysis to investigate the internal structure of these dimensions in unselected schoolchildren and in children with OCD. METHOD: We estimated the network structure of OCD symptom dimensions in 6,991 schoolchildren and 704 children diagnosed with OCD from 18 sites across 6 countries. All participants completed the Obsessive-Compulsive Inventory-Child Version. RESULTS: In both the school-based and clinic-based samples, the OCD dimensions formed an interconnected network with doubting/checking emerging as a highly central node, that is, having strong connections to other symptom dimensions in the network. The centrality of the doubting/checking dimension was consistent across countries, sexes, age groups, clinical status, and tic disorder comorbidity. Network differences were observed for age and sex in the school-based but not the clinic-based samples. CONCLUSION: The centrality of doubting/checking in the network structure of childhood OCD adds to classic and recent conceptualizations of the disorder in which the important role of doubt in disorder severity and maintenance is highlighted. The present results suggest that doubting/checking is a potentially important target for further research into the etiology and treatment of childhood OCD.

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

Tempo cognitivo lento: una revisión actualizada / Sluggish cognitive tempo: an updated review

Introducción. El estudio del tempo cognitivo lento (TCL) surgió en gran parte de las investigaciones del trastorno por déficit de atención/hiperactividad (TDAH). Este constructo se define con una gama de síntomas conductuales, como apariencia de somnolencia, soñar despierto, hipoactividad física, pobre iniciativa, letargo y apatía. Desarrollo. Se revisa el constructo de TCL a través de artículos recientemente publicados al respecto sobre características clínicas, síntomas asociados, evaluación, prevalencia, etiología, comorbilidad, perfiles neuropsicológicos y tratamiento. Los trabajos más actuales proponen entender el TCL como un cluster de síntomas distintivo del TDAH. Aunque no hay un consenso claro, los datos son cada vez más consistentes y dotan de gran validez externa al TCL, asociándolo con síntomas internalizantes. Conclusiones. Consideramos necesario anclar los diferentes subtipos de TDAH en modelos conceptuales atencionales. Así, la red de orientación atencional se relacionaría con el TCL, la red de vigilancia o atención sostenida con el TDAH subtipo inatento, y la atención ejecutiva sería la implicada en el TDAH subtipo combinado. La evidencia hasta la fecha, incluyendo esta revisión, apoya la idea de que el TCL es un trastorno de atención diferenciado del TDAH, pero que, como cualquier trastorno dimensional, puede solaparse con él aproximadamente en la mitad de los caso (AU)

Introduction. The study of sluggish cognitive tempo (SCT) arose largely from research carried out on attention deficit hyperactivity disorder (ADHD). This construct is defined by a range of behavioural symptoms such as the appearance of drowsiness, daydreaming, physical hypoactivity, little initiative, lethargy and apathy. Development. The construct of SCT is reviewed by means of recently published papers on its clinical characteristics, associated symptoms, evaluation, prevalence, aetiology, comorbidity, neuropsychological profiles and treatment. The latest studies propose that SCT should be understood as a cluster of symptoms that is distinct from ADHD. Although there is no clear consensus on the matter, the evidence is becoming increasingly more consistent and endows SCT with a high degree of external validity, associating it with internalising symptoms. Conclusions. We believe the different subtypes of ADHD must be grounded in attentional conceptual models. Hence, the attentional guidance network would be related with SCT, the vigilance or sustained attention network would be linked with the inattentive subtype of ADHD, and executive attention would be involved in the combined subtype of ADHD. The evidence obtained to date, including this review, supports the idea that SCT is an attention disorder distinct from ADHD but, like any dimensional disorder, it can overlap with it in around half the cases (AU)

[Sluggish cognitive tempo: an updated review]. / Tempo cognitivo lento: una revision actualizada.

INTRODUCTION: The study of sluggish cognitive tempo (SCT) arose largely from research carried out on attention deficit hyperactivity disorder (ADHD). This construct is defined by a range of behavioural symptoms such as the appearance of drowsiness, daydreaming, physical hypoactivity, little initiative, lethargy and apathy. DEVELOPMENT: The construct of SCT is reviewed by means of recently published papers on its clinical characteristics, associated symptoms, evaluation, prevalence, aetiology, comorbidity, neuropsychological profiles and treatment. The latest studies propose that SCT should be understood as a cluster of symptoms that is distinct from ADHD. Although there is no clear consensus on the matter, the evidence is becoming increasingly more consistent and endows SCT with a high degree of external validity, associating it with internalising symptoms. CONCLUSIONS: We believe the different subtypes of ADHD must be grounded in attentional conceptual models. Hence, the attentional guidance network would be related with SCT, the vigilance or sustained attention network would be linked with the inattentive subtype of ADHD, and executive attention would be involved in the combined subtype of ADHD. The evidence obtained to date, including this review, supports the idea that SCT is an attention disorder distinct from ADHD but, like any dimensional disorder, it can overlap with it in around half the cases.

TITLE: Tempo cognitivo lento: una revision actualizada.Introduccion. El estudio del tempo cognitivo lento (TCL) surgio en gran parte de las investigaciones del trastorno por deficit de atencion/hiperactividad (TDAH). Este constructo se define con una gama de sintomas conductuales, como apariencia de somnolencia, soñar despierto, hipoactividad fisica, pobre iniciativa, letargo y apatia. Desarrollo. Se revisa el constructo de TCL a traves de articulos recientemente publicados al respecto sobre caracteristicas clinicas, sintomas asociados, evaluacion, prevalencia, etiologia, comorbilidad, perfiles neuropsicologicos y tratamiento. Los trabajos mas actuales proponen entender el TCL como un cluster de sintomas distintivo del TDAH. Aunque no hay un consenso claro, los datos son cada vez mas consistentes y dotan de gran validez externa al TCL, asociandolo con sintomas internalizantes. Conclusiones. Consideramos necesario anclar los diferentes subtipos de TDAH en modelos conceptuales atencionales. Asi, la red de orientacion atencional se relacionaria con el TCL, la red de vigilancia o atencion sostenida con el TDAH subtipo inatento, y la atencion ejecutiva seria la implicada en el TDAH subtipo combinado. La evidencia hasta la fecha, incluyendo esta revision, apoya la idea de que el TCL es un trastorno de atencion diferenciado del TDAH, pero que, como cualquier trastorno dimensional, puede solaparse con el aproximadamente en la mitad de los casos.

Comorbilidad entre folie à deux y trastorno del espectro del autismo de alto funcionamiento: a propósito de un caso / Comorbidity between folie à deux spectrum disorder and high functioning autism: report of a case

Los déficits persistentes en comunicación e interacción social y los patrones repetitivos y restringidos de conducta, actividades e intereses son las características clínicas que conforman los trastornos del espectro del autismo. En este contexto psicopatológico se describe el caso de un niño de 8 años que presenta una descompensación psicótica compatible con el diagnóstico de folie à deux, entidad psiquiátrica caracterizada por la transferencia de ideas delirantes y/o conductas extrañas de una persona a otra la cual ha mantenido una relación estrecha e íntima con el paciente afectado originalmente. En este caso, el sujeto afectado primariamente es la madre del paciente, como se evidencia tras las primeras exploraciones (AU)

Persistent deficits in social interaction and communication, and restricted, repetitive patterns of behavior, activities and interests are the clinical features that integrate the autism spectrum disorders. In this psychopathological context, is presented the case of an 8-year-old with a psychotic decompensation compatible with the diagnosis of folie à deux, a psychiatric disorder characterized by the transfer of delusional ideas and strange behavior from one person to other, both of them members of a close relationship. In this case, the "primary subject" is the mother of the child, as it is demonstrated in the first examinations (AU)

Obsessive compulsive inventory-child version (OCI-CV) in a Spanish community sample of children and adolescents / El Inventario Obsesivo Compulsivo-Versión niños (OCI-CV) en una muestra comunitaria de niños y adolescentes españoles

BACKGROUND: There is a growing interest in designing instruments to assess obsessive-compulsive symptoms in children. The Obsessive-Compulsive Inventory-Child Version (OCI-CV) has showed to be a valid in the evaluation of OCD in clinical and nonclinical populations. The main goal in this study was to analyze factor structure and psychometric properties of the OCI-CV in a community Spanish sample. METHOD: Data were collected from 914 children/adolescents with a mean age of 13.01 (SD = 1.96; Males = 51.3%). Exploratory factor analysis was carried out in order to study the internal structure of the OCI-CV Spanish version. Further, internal consistency, test-retest reliability, and convergent and discriminant validity of the total score and the factors obtained were examined. Finally, age and gender differences were also explored. RESULTS: Exploratory factor analysis yielded a similar structure to the original OCI-CV with the following six factors: Washing/Checking, Obsession, Ordering, Doubting, Neutralizing, and Hoarding. The internal consistency was strong for the total score, but moderate for the subscales. The Spanish version of the OCI-CV showed evidences of test-retest reliability and convergent and discriminant validity. CONCLUSION: The Spanish version of the OCI-CV is an instrument with adequate psychometric properties to assess obsessions and compulsions in Spanish children/adolescents

ANTECEDENTES: existe un creciente interés en el diseño de instrumentos que evalúen los síntomas obsesivo-compulsivos en niños. El Inventario Obsesivo Compulsivo-Versión para Niños (OCI-CV) ha demostrado ser válido para evaluar estos síntomas en población clínica y no clínica. El objetivo de este estudio fue analizar la estructura factorial y las propiedades psicométricas del OCI-CV en población española comunitaria. MÉTODO: se recogieron datos de 914 niños/adolescentes con una edad media de 13,01 años (DT = 1.96; 51.3% varones). Se realizó un análisis factorial exploratorio. Posteriormente se examinó la consistencia interna, la fiabilidad test-retest y la validez convergente y divergente de la puntuación total del instrumento y de los factores obtenidos. Finalmente, se comprobó la existencia de diferencias en función del sexo y la edad de los participantes. RESULTADOS: los resultados mostraron una estructura similar a la del OCI-CV original, compuesta por los siguientes factores: Lavado/Comprobación, Obsesión, Orden, Duda, Neutralización y Acumulación. La consistencia interna fue buena para la puntuación total, aunque moderada para las diferentes subescalas. La versión en castellano del OCI-CV mostró evidencias de fiabilidad test-retest y validez convergente y discriminante. CONCLUSIONES: OCI-CV es una herramienta con adecuadas propiedades psicométricas para la valoración de obsesiones y compulsiones en niños/adolescentes españoles

Obsessive Compulsive Inventory-Child Version (OCI-CV) in a Spanish community sample of children and adolescents.

BACKGROUND: There is a growing interest in designing instruments to assess obsessive-compulsive symptoms in children. The Obsessive-Compulsive Inventory-Child Version (OCI-CV) has showed to be a valid in the evaluation of OCD in clinical and nonclinical populations. The main goal in this study was to analyze factor structure and psychometric properties of the OCI-CV in a community Spanish sample. METHOD: Data were collected from 914 children/adolescents with a mean age of 13.01 (SD = 1.96; Males = 51.3%). Exploratory factor analysis was carried out in order to study the internal structure of the OCI-CV Spanish version. Further, internal consistency, test-retest reliability, and convergent and discriminant validity of the total score and the factors obtained were examined. Finally, age and gender differences were also explored. RESULTS: Exploratory factor analysis yielded a similar structure to the original OCI-CV with the following six factors: Washing/Checking, Obsession, Ordering, Doubting, Neutralizing, and Hoarding. The internal consistency was strong for the total score, but moderate for the subscales. The Spanish version of the OCI-CV showed evidences of test-retest reliability and convergent and discriminant validity. CONCLUSION: The Spanish version of the OCI-CV is an instrument with adequate psychometric properties to assess obsessions and compulsions in Spanish children/adolescents.