Results 161 to 170 of about 8,410 (209)

Developmental dyscalculia: prevalence and prognosis

European Child & Adolescent Psychiatry, 2000
The prevalence of developmental dyscalculia (DC) in the school population ranges from 3-6 %, a frequency similar to that of developmental dyslexia and ADHD. These studies fulfilled the criteria for an adequate prevalence study, i.e., were population based, using standardized measures to evaluate arithmetic function. Although the variation in prevalence
R S, Shalev, J, Auerbach, O, Manor, V, Gross-Tsur   +3 more
openaire   +2 more sources

Number development and developmental dyscalculia

Developmental Medicine & Child Neurology, 2007
There is a growing consensus that the neuropsychological underpinnings of developmental dyscalculia (DD) are a genetically determined disorder of ‘number sense’, a term denoting the ability to represent and manipulate numerical magnitude nonverbally on an internal number line.
Michael G, von Aster, Ruth S, Shalev
openaire   +2 more sources

Developmental Dyscalculia and Medical Assessment

Journal of Learning Disabilities, 1993
Developmental dyscalculia (DC) is a primary cognitive disorder of childhood manifested by disturbance of arithmetic ability. As an isolated learning disability (LD), it is usually treated by remedial education and not referred for further medical evaluation.
R S, Shalev, V, Gross-Tsur
openaire   +2 more sources

Developmental Dyscalculia and Brain Laterality

Cortex, 1995
The correlation between arithmetic dysfunction and brain laterality was studied in 25 children with developmental dyscalculia (DD). The children were tested on a standardized arithmetic battery and underwent a neurological and neuro-psychological evaluation.
R S, Shalev, O, Manor, N, Amir, R, Wertman-Elad, V, Gross-Tsur   +4 more
openaire   +2 more sources

Developmental Dyscalculia

Journal of Learning Disabilities, 1974
A definition of developmental dyscalculia, stressing the hereditary or congenital affection of the brain substrate of mathematical functions, is put forth. This disorder is clearly distinguished from other forms of disturbed mathematical abilities.
openaire   +1 more source

DEVELOPMENTAL DYSCALCULIA: PREVALENCE AND DEMOGRAPHIC FEATURES

Developmental Medicine & Child Neurology, 1996
SUMMARYOne hundred and forty‐thrée 11‐year‐old children with developmental dyscalculia, from a cohort of 3029 students, were studied to determine demographic features and prevalence of this primary cognitive disorder. They were evaluated for gender, IQ, linguistic and perceptual skills, symptoms of attention‐deficit hyperactivity disorder (ADHD), socio‐
V, Gross-Tsur, O, Manor, R S, Shalev
openaire   +2 more sources

Attention, automaticity, and developmental dyscalculia.

Neuropsychology, 2009
People suffering from developmental dyscalculia (DD) show an abnormal pattern of the size congruity effect. They do not display a facilitation component in a numerical Stroop task. In this task, participants are presented with 2 digits that differ both in physical size and numerical value, and they have to compare the digits while ignoring one of the ...
Sarit Ashkenazi, Orly Rubinsten, Avishai Henik   +2 more
openaire   +2 more sources

Multiple components of developmental dyscalculia

Trends in Neuroscience and Education, 2013
Unresolved controversies regarding the functional impairments at the origin of dyscalculia, including working memory, approximate number system and attention have pervaded the field of mathematical learning disabilities. These controversies are fed by the tendency to focus on a single explanatory factor.
Wim Fias, Vinod Menon, Denes Szucs
openaire   +1 more source

Procedural Dyscalculia and Number Fact Dyscalculia: Double Dissociation in Developmental Dyscalculia

Cognitive Neuropsychology, 1991
Abstract Traditional developmental models describe a series of sequenced stages and interpret developmental disorders in terms of arrested development. Two different cases of developmental dyscalculia are described which cannot both be explained against the same stage model of the development of arithmetical skill.
openaire   +1 more source

Developmental dyscalculia and cognitive neuropsychology

Developmental Neuropsychology, 1994
In this article we present a study investigating the cognitive impairments exhibited in developmental dyscalculia, or arithmetic learning disability. We begin by providing a brief review of the literature on the subject, including both single‐case and group designs.
Scott M. Sokol, Paul Macaruso, Tamar H. Gollan   +2 more
openaire   +1 more source