BACKGROUND There are concerns that developmental exposure to endocrine disrupting chemicals such as phenolic compounds and phthalates could affect child cognitive function. Epidemiological studies tackling this question have mainly focused on phthalate metabolites and bisphenol A, but not on the other phenolic compounds. Our study aimed to assess the relationship between in-utero exposure to ph...

The aim of the present study was investigate the relationship between working memory and reading and mathematical skills in 55 children diagnosed with developmental coordination disorder (DCD). The findings indicate a pervasive memory deficit in all memory measures. In particular, deficits observed in visuospatial short-term and working memory tasks were significantly worse than in the verbal s...

gender ratio between cases and controls was unequal, albeit non-significantly so, this could not account for the marked differences observed in IQ scores. On the one hand, the difference between the two groups was around one standard deviation, which is much more than the commonly observed difference of 0 to 1 points between genders (Hedges & Nowell, 1995). This was the case both for verbal (di...

Comparison of IQ scores from the standard Wechsler Adult Intelligence Scale-Revised (WAIS-R) and the Ward (1990) seven-subtest short form (WAIS-R/7 SF) was performed on a sample of 459 patients with traumatic brain injury due to head trauma. The results indicate that this short form provides Verbal, Performance, and Full Scale IQ scores that vary little from the complete WAIS-R, at approximatel...

Sex differences on the WISC-R in Chinese children were examined in a sample of 788 aged 12 years. Boys obtained a higher mean full scale IQ than girls of 3.75 IQ points, a higher performance IQ of 4.20 IQ points, and a higher verbal IQ of 2.40 IQ points. Boys obtained significantly higher means on the information, picture arrangement, picture completion, block design, and object assembly subtes...

Test-retest performance on the Wechsler Adult Intelligence Scale (WAIS) of two groups of adult epilepsy patients are presented and compared. In one group, Seizures Improved (SI) group, seizure frequency had decreased during the test-retest interval, and in the other group, Seizures Unimproved (SU) group, the number of seizures had either increased or stayed the same over the test-retest interva...

BACKGROUND AND PURPOSE Diffusion tensor (DT) images can provide information about the nature of white matter changes, including axonal loss and demyelination. We applied DT imaging to verify white matter changes in patients with malignant phenylketonuria (PKU) and to correlate the findings with clinical intelligence quotients (IQs). METHODS We compared DT images with T2-weighted images in 12 ...

The objective of the present study was to investigate the relationship of IQ in children with maternal blood mercury concentration during late pregnancy. The present study is a component of the Mothers and Children's Environmental Health (MOCEH) study, a multi-center birth cohort project in Korea that began in 2006. The study cohort consisted of 553 children whose mothers underwent testing for ...

Background Congenital hypothyroidism (CH) is the most common congenital endocrine disorder in childhood and one of preventable causes intellectual disability (ID). Late initiation thyroid hormone substitution therapy has a negative impact on abilities CH patients.
 Objective To compare Intelligence Quotient (IQ) between children with who underwent early treatment among without CH.
 Me...

Executive function and intelligence are negatively associated with aggression, yet the role of executive function has rarely been examined in the context of school bullying. We studied whether different domains of executive function and non-verbal intelligence are associated with bullying involvement in early elementary school. The association was examined in a population-based sample of 1,377 ...