How do toddlers learn the names of geometric forms? Past work suggests that preschoolers have fragmentary knowledge and that defining properties are not understood until well into elementary school. The current study investigates when children first begin to understand shape names and how they apply those labels to unusual instances. We tested 25- and 30-month-old children's (N = 30 each) under...

The present study was conducted with the aim of developing and validating the Leiter International Performance Scale software. The research method was psychometrics. Therefore, to validate the test after the software development, 200 children were selected from among all 3-6 year old children in the City of Isfahan, Iran, who attended kindergartens and pre-school centers, using the stratified r...

BACKGROUND Inconsistent results continue to be reported from studies linking low-level prenatal lead exposure and child development. Because of limited earlier epidemiological studies with birth cohort follow up design, it still remains inconclusive that either the associations of cord blood level of toxic, and essential elements, and postnatal raising environment on neurodevelopment of childre...

We report a case of child who developed acute disseminated encephalomyelitis after trauma at home. This is 25-month-old child, born non-consanguineous marriage with no perinatal history or any recent viral infections, good psychomotor and intellectual development.
 Diagnosis encephalopathy can be difficult in children, nonspecific, subtle, transient symptoms, such as drowsiness irritabilit...

Although fever in the young child (0-36 months) is a common clinical problem, the evaluation and treatment of febrile children remain controversial. Furthermore, universal vaccination with the heptavalent pneumococcal conjugate vaccine (PCV7) has changed the epidemiology of invasive bacterial disease in young children. This article addresses the approach to febrile neonates (0-28 days old), you...

If myonuclear loss initiates muscle wasting, it should precede the loss of muscle mass. As aging affects muscle plasticity, the time-course of muscle atrophy during disuse may differ between young and old animals. To investigate this, gastrocnemius muscles of 5- and 25-month-old rats were exposed to 1, 2, or 4 weeks of denervation, whereas the contralateral gastrocnemius muscles served as contr...