Researchers in developmental disorders frequently refer to abilities that are in line with mental age as simply delayed. The qualifier simply might imply an existing theory of developmental delay that is well understood and uninteresting (perhaps because it is an exaggerated form of individual differences, the responsibility of other researchers). In this article, I argue that the notion of del...

BACKGROUND Developmental delay has been reported to occur with optic nerve hypoplasia, a leading cause of pediatric blindness, but has not been systematically examined for its prevalence and correlation with associated pathologies of optic nerve hypoplasia. OBJECTIVE The purpose of this study was to determine the developmental outcomes of children with optic nerve hypoplasia and the correlati...

CMAJ 2016. DOI:10.1503 /cmaj.151437 Developmental delay in children may be transitory or sustained and is characterized by a significant delay (i.e., performance 1.5 standard deviations or more below age-expected norms) in one or more of the following domains: gross and fine motor skills, speech and language, social and personal skills, activities of daily living and cognition.1,2 Children with...

A randomized controlled trial was used to evaluate a parent training intervention for caregivers with preschool-age children with developmental disabilities. The 21 families in the experimental group received usual care plus the 12-week Incredible Years Parent Training Program with developmental delay modifications. Families in the control group (n = 23) received usual care, including early chi...

De novo duplication of 2q is very rare. Most cases of 2q duplications result from familial translocations, and are associated with simultaneous monosomy of another chromosome segment. To our knowledge and search in English literature there are less than 20 reported cases of isolated 2q duplication. Hereby we introduce a 4.5-year-old Iranian boy of a non-consanguineous marriage who was referred ...

CONTEXT Autism represents an unusual pattern of development beginning in the infant and toddler years. OBJECTIVES To examine the stability of autism spectrum diagnoses made at ages 2 through 9 years and identify features that predicted later diagnosis. DESIGN Prospective study of diagnostic classifications from standardized instruments including a parent interview (Autism Diagnostic Intervi...

BACKGROUND The future development of children is considered more than ever now due to the advances in medical knowledge and thus the increase in survival rates of high-risk infants. This study investigated the correlation between high-risk pregnancy and developmental delay in children aged 4-60 months. METHODS This descriptive study was conducted on 401 mothers and their children (4-60 months...

The aim of the presented study was to investigate the relationship between Cloninger’s personality dimensions of temperament (Harm Avoidance, Novelty Seeking, Reward Dependence, and Persistence) and rates of delay and effort discounting among adolescents. Generally speaking, discounting refers to a decrease in the subjective value of a reward as its delay (delay discounting), or an effort requi...