the present study was initiated to derive an indirect method for estimating body fat mass (bfm) and to evaluate the correlation between indirect anthropometric techniques for this estimation and to examine the relation of these parameters and of iq to age of menarche. a total of 578 adolescent girls of ten junior high schools in five educational districts of mashhad, participated in a cross sec...

background and objectives : considering the effect of heavy metals (particularly lead) on intelligent quotient level , it was measured in children living in high lead areas in angouran district of zanjan province . material and methods : in this historical cohort study all( n=64 ) grade – one students living in angouran village were selected as case group. 62 other students living in low lead a...

Abstract We use administrative and survey-based micro data to study the relationship between cognitive abilities (IQ), formation of inflation expectations, consumption plans a representative male population. High-IQ men display 50$\%$ lower forecast errors for than other men. men, but not others, have consistent expectations perceptions over time. In terms choice, only high-IQ increase their pr...

introduction: children with cochlear implants (cis) may experience few opportunities for positive musical experiences, and musical perception is therefore often not sufficiently developed. this paper investigates and discusses the relationship between intelligence quotient (iq) and musical ability in children with cis compared with children with normal hearing.                                  ...

The negative effects of very low birthweight on intellectual development have been well documented, and more recently this effect has been shown to generalize to birthweights within the normal range. In this study we investigate the etiology of this relationship by using a classical twin design to disentangle the contributions of genes and environment. A previous Dutch study (Boomsma et al., 20...

BACKGROUND Happiness and higher intelligent quotient (IQ) are independently related to positive health outcomes. However, there are inconsistent reports about the relationship between IQ and happiness. The aim was to examine the association between IQ and happiness and whether it is mediated by social and clinical factors. Method The authors analysed data from the 2007 Adult Psychiatric Morbidi...

We examine whether children with early unilateral brain injury show an IQ decline over the course of development. Fifteen brain injured children were administered an IQ test once before age 7 and again several years later. Post-7 IQ scores were significantly lower than pre-7 IQ scores. In addition, pre-7 IQ scores were lower for children with larger lesions, but children with smaller lesions an...

Neuroimaging evidences have shown the association of intelligence with several structural brain properties in normal individuals. However, this association for attention deficit hyperactivity disorder (ADHD) is need to be investigated. we estimated grey matter density of the brain using MRI scanning on 56 ADHD individuals comprising 30 combined (age=10.44±2.41, IQ=112.13±13.15, male, 24 right h...

Introduction: It has been shown that intelligence as a general mental ability is related to the structure and function of the brain regions. However, the specificity of these regional dependencies to the intelligence scores in the typical and atypical developed individuals needs to be well understood. In this study, we hypothesized that neural correlates of IQ should not have a fixed pattern ra...