Active clinical trials for "Attention Deficit Disorder with Hyperactivity"

Lots of studies suggest that children with ADHD have deficits in facial emotion recognition, especially for the negative emotion. But there were arguments for this deficit is a secondary problem due to the general attention impairment in ADHD, or a specific social cognitive processing to ADHD. The objectives of this study are to investigate that association between the deficits in facial emotion recognition and the emotional attention processing in ADHD. In this study, the investigators use the emotion attentional bias and emotional go / no go paradigm to answer this question.

The aim of the our study is to investigate whether there is an increased incidence of ADHD ( based on self reports and questionnaires) among children with short stature due to constitutional growth delay (CGD) in comparison with children with Familial short stature.

Children with ADHD are in high risk to develope social difficulties. The present study will examine the emotional processing in those children. The main purpose is to investigate the connection between memory and recognition of facial expressions, how those abilities influence social functioning and if Methylphenidate influence the emotional processing. The study will include 80 children in ages 9-12 years, devided in 2 groups; children with ADHD treated with Methylphenidate, and healthy children without ADHD. The children will do computerized tasks that examine recognition and memory of facial expressions. Social function will be examined by questionnaires filled by parents and teachers.

Specific nutrient deficiencies have been described in children with ADHD including zinc, magnesium, calcium, and essential fatty acids. In addition, children with ADHD have been noted to behave and concentrate better in some studies when the ratio of protein compared with carbohydrate in their diets was increased, however, this was anecdotal information noted from studies designed to study other factors, so its not clear if the increased protein is actually the cause of the improved behavior. In our clinical practice, we have noted a high incidence of what appears to be carbohydrate "craving" among children with ADHD, which can put children at risk for obesity, diabetes type II, and additional dysregulation of mood and concentration. Carbohydrate craving is a well-documented phenomenon in adults, particularly those with certain patterns of obesity, mood disorders, or those undergoing smoking cessation programs. It has not been studied in children, however. Thus, this initial study was designed to determine 1) whether or not children with ADHD have different patterns of nutrient intake compared with children in the same family and children in families without a child with ADHD, 2) if the described nutrient deficiencies are due to decreased intake, and 3) whether there is an increased occurrence of carbohydrate craving, based on parents' perceptions, eating patterns, and actual intake, among children (or certain subgroups of children) with ADHD. The information gained from this study will be used to design additional studies to test causative hypotheses and intervention strategies.