Evidence bearing on the relationships between profiles of neuropsychological assets and deficits, subtypes of learning disabilities, and patterns and degrees of psychosocial functioning is reviewed. Conclusions related to the neurodevelopmental bases of psychosocial functioning in children with nonverbal learning disabilities are emphasized. (SLD)

The neuropsychological approach to studying learning disabilities (LD) has produced two extreme positions: the view of LD as (1) homogeneous and unitary and (2) as a pattern of unique and idiosyncratic characteristics. Resulting classification approaches for determining subtypes of the population have important implications for assessment and…

Presents two subtypes of learning disabilities (LD) to illustrate hypotheses relating to psychosocial functioning of children with LD: that LD subtypes are manifestations of basic neuropsychological deficits; that subtypes may lead to problems in academic and/or psychosocial functioning; and that relationship between neuropsychological deficits,…

Some of the issues that dominated, or at least held sway, in the neuropsychology of learning disabilities (LD) in the 1970s included: the definition of LD, whether there are reliable and valid subtypes of LD, whether and to what extent LD are related to cerebral dysfunction, and whether LD are related to types and/or degrees of psychosocial…

The identifying features of nonverbal learning disabilities (NLD) were evaluated with 29 NLD children, 27 children with reading and spelling disabilities, and 27 nonclinical children. Four tests were found which accurately discriminated the NLD group from the others. Deficits in visual-perceptual-organizational psychomotor coordination and complex…

Presents syndrome of nonverbal learning disabilities (NLD) and model developed to encompass its complex manifestations. Includes history of development of syndrome, types of children in whom its principal features are manifest, hypothesized neurological bases of syndrome, and test of its developmental dimensions. Provides case study and discusses…

Reviews current research on brain-behavior relationships in disabilities of arithmetic and mathematical reasoning from both a neurological and a neuropsychological perspective. Defines developmental dyscalculia and the developmental importance of right versus left hemisphere integrity for the mediation of arithmetic learning and explores…

Four studies involving 45 subjects found that children (ages 9-14) with nonverbal learning disabilities syndrome exhibited specific patterns of impairment in mechanical arithmetic and in psychosocial functioning, whereas children with poor performance in reading and spelling exhibited patterns of academic deficits (including arithmetic), but not…