Empirical evidence suggests a phonological loop deficit associated with Down syndrome. A trisomy 21 may be associated with a narrowing of visual attention to fewer than four objects at a time too. In a study with computer tachistoscopy, the hypothesis was confirmed in all 194 persons with trisomy 21. The subitising limit of persons with trisomy 21…

Students with dyscalculia often face significant challenges in visual memory, which is critical for mathematical learning, particularly in recognizing and differentiating geometric shapes and their properties. This study aims to explore the extent to which an action plan, tailored to the unique learning characteristics of students with…

The present study aimed to investigate the effects of the EASY Minds program on working memory and selective attention of a group of Iranian students with maths learning disabilities. The study had a quasi-experimental research design with pre-test, post-test, and follow-up tests. Forty students with maths learning disabilities were randomly…

The aim of this study was to investigate verbal and nonverbal cognitive deficits in Italian students with developmental dyslexia. The performances of 32 dyslexic students, 64 age-matched typically reading controls, and 64 reading age-matched controls were compared on tests of lexical knowledge, phonological awareness, rapid automatized naming,…

This study investigated if developmental dyscalculia (DD) in children with different profiles of mathematical deficits has the same or different cognitive origins. The defective approximate number system hypothesis and the access deficit hypothesis were tested using two different groups of children with DD (11-13 years old): a group with…

Stakeholders are debating the value of cognitively focused instruction for students who have not benefited from a skills-based approach. Much of the discussion, however, is occurring without recognition of research that has been conducted in the past 2 decades. In this article, we reviewed the research. Electronic databases and hard copies of…

This study investigated the role of strategy instruction on solution accuracy in children with and without serious math difficulties (MD) in problem solving. Children's posttest solution accuracy was compared on standardized and experimental measures as a function of strategy conditions. Strategy conditions included curriculum materials that…

Working memory, inhibition and naming speed was assessed in 22 children with mathematical learning disorders (MD), 17 children with a reading learning disorder (RD), and 45 children without any learning problems between 8 and 12 years old. All subjects with learning disorders performed poorly on working memory tasks, providing evidence that they…

Although current categories of learning disabilities include as specific disabilities calculation and mathematical problem solving [see IDEA reauthorization, 2004, Sec. 300.8(c)(10)], the majority of research focuses on calculation disabilities. Previous studies have shown, however, that deficits in word problem solving difficulties are persistent…

This article examines working memory functioning in children with specific developmental disorders of scholastic skills as defined by ICD-10. Ninety-seven second to fourth graders with a minimum IQ of 80 are compared using a 2 x 2 factorial (dyscalculia vs. no dyscalculia; dyslexia vs. no dyslexia) design. An extensive test battery assesses the…

A serial recognition task was used to compare performance of two age groups of learning disabled children (mean chronological ages 8.1 and 10.6) with 2- and 3-dimensional representations of nonlabeled 8-point random shapes. (Author/JMB)

A recent proposal suggests that dyslexic individuals suffer from attentional deficiencies, which impair the ability to selectively process incoming visual information. To investigate this possibility, we employed a spatial cueing procedure in conjunction with a single fixation visual search task measuring thresholds for discriminating the…

The effects of reinforcement contingencies on task performance of bisensory missing words were studied with two students (about nine years old): one learning disabled (LD) male with an auditory preference and one LD female with a visual preference. Reinforcement contingencies were found to control both students' performances. (Author/SEW)

Effects of learning names for random nonsense shapes prior to a probe-type serial-recall task were investigated in disabled readers. No differences among reading groups on recall strength of primary recall were found, suggesting similar verbal skills. (Author)

Dichotic listening and bisensory memory skills were investigated in 72 male middle-class second-grade and 72 fourth-grade readers who were classified according to the Boder system, which distinguishes among normal and three types of dyslexic readers: dysphonetic (auditory dyslexic), dyseidetic (visual dyslexic), and alexic (combined). (Author/SBH)