Despite evidence for the involvement of working memory in mathematics attainment, the understanding of its components relationship to individual areas of mathematics is somewhat restricted. This study aims to better understand this relationship. Two-hundred and fourteen year 3 children in the UK were administered tests of verbal and visuospatial…

Visual and auditory verbal learning using a selective reminding format was studied in a mixed clinical sample of children with autism spectrum disorder (ASD) (n = 42), attention-deficit hyperactivity disorder (n = 83), velocardiofacial syndrome (n = 17) and neurotypicals (n = 38) using the Test of Memory and Learning to (1) more thoroughly…

This study explored the relative strength of five neuropsychological tests in correlating with productivity 1 year after traumatic brain injury (TBI). Six moderate-to-severe TBI patients who returned to work at 1-year post-injury were matched with six controls who were unemployed after 1 year based on age, severity of injury, and Functional…

Asperger syndrome (AS) and non-verbal learning disability (NLD) are both characterized by impairments in motor coordination, visuo-perceptual abilities, pragmatics and comprehension of language and social understanding. NLD is also defined as a learning disorder affecting functions in the right cerebral hemisphere. The present study investigates…

The hypothesis that describing a visual memory can result in recoding interference was investigated in a series of 6 experiments with 518 college students. Collective results were consistent with the hypothesis; verbalizing memory can produce a verbally biased memory representation that can interfere with the original visual memory. (SLD)

A previous study by Gibson et al. (1972) that investigated the effect of orthographic structure on letter search was replicated and extended in order to identify factors that might explain the apparent discrepancy between their results and those of comparable studies. Experiment one tested whether the discrepancy might be explained by difference…

This paper reports on a study concerned with rapid mental operations of the central processor as it performs tasks such as the comparison of rotated figures, mental arithmetic, sentence verification, and memory scanning. The central processor is the site of most of the symbol manipulation that takes place in the human information processing…

In three studies, the effects of visual and phonological distinctness on the visual-verbal paired associate learning of dyslexic and normal readers at the age of 10-12 were examined. We hypothesized that both groups would be equally affected by the visual distinctness of the pictures, whereas the learning performance of the dyslexic children would…

This study investigated the premise that disordered temporal order perception in retarded readers can be seen in the serial processing of both nonverbal auditory and visual information, and examined whether such information processing deficits relate to level of reading ability. The adult subjects included 20 in the dyslexic group, 12 in the…

The word and picture processing abilities of 11 children (ages 6-10) with partial vision were studied in a variety of ways over a period of 14 months. The studies found that in processing words partially sighted children, like fully sighted children, used both lexical and nonlexical processing, though perhaps in difference balance. Recognition and…

A study investigated whether a visual selective attention deficit with its presumed basis in slow visual processing referred to the same phonological recoding deficit, or whether they were two independent sources of reading disability. Subjects were children aged 7 to 15 referred to a university clinic (the Waterloo Child Assessment…

A major challenge to developing therapeutic interventions for cognitive loss and dementia in aging individuals with Down syndrome (DS) is the selection of appropriate outcome measures. This report describes the adaptation of the Brief Praxis Test (a nonverbal cognitive test) as a primary outcome measure, as well as the selection of secondary…