The SCT and ADHD-I symptoms independently promote executive deficits. Children with ADHD-I symptoms showed deficits in most areas of the EF. Deficits in inhibition and initiative are unique to inattention.
The Executive Function is a set of cognitive processes that are developed from the earliest ages. Recent studies in children with disruptive behaviour disorders suggest the presence of effects on the executive functioning. The aim of this study is to know the association among symptoms of Attention Deficit with Hyperactivity Disorder, Oppositional Defiant Disorder, and Conduct Disorder, and Executive Function in children from 3 to 6 years old. Method: A descriptive cross-sectional study was conducted. An assessment was performed on a sample of 444 subjects from Spain; it was made through an inventory for parents and teachers to estimate the capacity of Executive Function. Results: a relation between the symptoms of Attention Deficit with Hyperactivity Disorder, Oppositional Defiant Disorder, Conduct Disorder, and the Executive Function deficit was found. The presence of symptoms of Attention Deficit with Hyperactivity Disorder inattentive type is associated with deficiencies in all areas of Executive Function, which does not occur with other symptoms. Conclusion: It is important to know the specific characteristics of each symptomatology by taking into account their executive functioning, in order to achieve accurate diagnoses in the clinical setting, as well as appropriate therapy according to the deficiencies presented by children.
Very little is known about the differences of the neurocognitive functioning of Attention Defi cit Hyperactivity Disorder (ADHD) and Paediatric Bipolar Disorder (PBD), since current studies do not agree on a differentiation of Executive Function (EF) between the two disorders. The aim of this study was to determine the EF defi cits associated with symptomatology of ADHD and the PBD phenotype. Participants were 76 children/adolescents aged 6-17 years and their parents, submitted to a diagnostic interview and a tool for assessing EF, Behaviour Rating Inventory of Executive Function. Structural Equation Modeling was used to examine associations between symptoms of ADHD and the PBD phenotype, and the EF. A model for parents and a model for children/ adolescents were performed. The model indexes showed a satisfactory fi t. ADHD was found to be associated with defi cits in all areas of EF, especially when the predominant symptom is inattention. The presence of symptoms of PBD phenotype was associated only with diffi culties in fi nding new strategies to solve problems and inhibiting new behaviour. The article concluded that the presence of ADHD symptoms is associated with cognitive defi cits different from those that may occur with PBD symptoms. It is advisable that professionals consider patients' neurocognitive profi les in order to achieve an appropriate differential diagnosis. Keywords: Executive function, attention defi cit hyperactivity disorder, paediatric bipolar disorder.
ResumoAinda é pouco o que se sabe do funcionamento do Transtorno de Défi cit de Atenção/Hiperatividade (TDAH) e do Transtorno Bipolar Pediátrico (TBP), já que atualmente os investigadores não concordam quanto a uma diferenciação da Função Executiva (FE) nos dois transtornos. O objetivo deste estudo é determinar os défi cits da FE associados às sintomatologias de TDAH e do fenótipo do TBP. Foram avaliados 76 crianças/adolescentes com idades entre 6-17 anos e seus pais, com uma entrevista diagnóstica e um instrumento para avaliação da FE, Behaviour Rating Inventory of Executive Function. Modelos de equações estruturais foram usados para examinar associações entre a sintomatologia de TDAH e do fenótipo de TBP, e a FE. Foi realizado um modelo para pais e outro para crianças/adolescentes. Os índices do modelo indicaram um ajuste satisfatório. Foi encontrado que o TDAH está associado a defi ciências em todas as áreas da FE, sobretudo se a sintomatologia predominante é a desatenção. A presença de sintomatologia do fenótipo de TBP somente apresentou associação a difi culdades na busca de novas estratégias na solução de problemas e na inibição de novas condutas. Conclui-se que a presença de sintomatologia de TDAH está associada a defi ciências cognitivas diferentes das que podem estar presentes no TBP. É recomendável que os profi ssionais considerem o perfi l neurocognitivo de seus pacientes para alcançarem um diagnóstico diferencial adequado. Palavras-chave: Função executiva, transtorno de défi cit de atenção/hiperatividade, transtorno bipol...
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