The role of serotonin (5-hydroxytryptamine; 5-HT) 5-HT2 receptor subtypes (5-HT2AR, 5-HT2BR, and 5-HT2CR) in acute cocaine-evoked hyperactivity was compared with their contribution to the development and expression of locomotor sensitization upon repeated, intermittent treatment with cocaine (10 mg/kg/day for 5 days) in male Wistar rats. Cocaine-evoked hyperactivity was significantly enhanced b...

This study examines the association of father's and mother's age with the severity of inattention and hyperactivity/impulsivity. Participants are 470 children with attention deficit hyperactivity disorder (ADHD) diagnosed according to DSM-IV diagnostic criteria. Moreover, parents reported the severity of ADHD symptoms through completing ADHD checklist. Mother's and father's age was associated w...

OBJECTIVE The objective was to study the cultural structure of Farsi-speaking parents' ratings with diagnostic definitions of ADHD. METHOD The children with ADHD and their parents were interviewed. The parents rated their children on the Farsi-speaking parents' ADHD rating questionnaire. RESULTS The principal components analysis extracted the two factors of inattention and hyperactivity- im...

This study sought to: (1) compare actigraphy-derived estimated sleep variables to the same variables based on the gold-standard of sleep assessment, polysomnography; (2) examine whether the correlations between the measures differ between children with attention-deficit/hyperactivity disorder and typically developing children; and (3) determine whether these correlations are altered when childr...

Animal models have demonstrated that mild hearing loss caused by acoustic trauma results in spontaneous hyperactivity in the central auditory pathways. This hyperactivity has been hypothesized to be involved in the generation of tinnitus, a phantom auditory sensation. We have recently shown that such hyperactivity, recorded in the inferior colliculus, is still dependent on cochlear neural outpu...

PURPOSE In the present study, the authors explored whether pragmatic language use was associated with, and perhaps accounted for, the social skills problems that children with varying levels of hyperactivity and inattention experience. METHOD A community sample of 54 children aged 9-11 years participated. Pragmatic language use, hyperactivity and inattention, and social skills were examined u...

background febrile seizure is one of the most prevalent childhood convulsions. there are controversy about possible relation between febrile seizure and attention deficit hyperactivity disorder (adhd). the aim of this study was to find the effect of simple febrile seizure on adhd in children. materials and methods in a case-control study all children of 3-12 years old with febrile seizure refer...

he neubiology nd neurychology of attentioncit/hyperactivity pblem s in he geeral polation This thesis focuses on the neuro biology and neuropsychology of attentiondeficit/hyperactivity problems in the general population. The notion that child psychopathology might be better described within a dimensional framework, rather than with clearly defined diagnostic categories, has recently gained supp...

introduction: attention deficit hyperactivity disorder (adhd) is the most common psychiatric disorder in school age children and has a negative effect on the individual’s general functions. the purpose of this study was to estimate the prevalence of adhd in preschool 6 year old children in yazd in 2005 and the influence of gender, birth weight, birth order and parental education on adhd. method...