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Developmental Right-Hemisphere Syndrome

Clinical Spectrum of the Nonverbal Learning Disability

Varda Gross Tsur is a pediatric neurologist at the Shaare Zedek Medical Center. Her interests are in learning disabilities, neuropsychological features of developmental neurological disorders, and treatment of epilepsy.

Ruth S. Shalev

Ruth S. Shalev is a pediatric neurologist at the Shaare Zedek Medical Center. Her research interests are in learning disabilities, particularly developmental dyscalculia and attention-deficit/hyperactivity disorder.

Orly Manor

Orly Manor is a lecturer of statistics at the Braun School of Public Health and Community Medicine, Hebrew University, Hadassah, Jerusalem. Her research interests focus on biostatistics and include the analysis of longitudinal data.

Naomi Amir

Naomi Amir is a professor of pediatric neurology at the Hadassah Hospital, Hebrew University Medical School, the director of the pediatric neurology services at Shaare Zedek Medical Center, and the medical director of the Agmon Rehabilitation Nursery School. Her research interests are in developmental aphasia, cognitive aspects of cerebral palsy, and neurometabolic diseases. Address: Varda Gross-Tsur, Neuropediatric Unit, Shaare Zedek Medical Center, POB 3235, Jerusalem, Israel 91031.

We report the clinical characteristics of the developmental right-hemisphere syndrome (DRHS), a nonverbal learning disability, in 20 children (9 girls and 11 boys; mean age = 9.5 years) who also manifested attention-deficit/hyperactivity disorder (ADHD), severe graphomotor problems, and marked slowness of performance. Diagnostic criteria for this study included (a) emotional and interpersonal difficulties; (b) paralinguistic communication problems; (c) impaired visuospatial skills, verbal IQ > performance IQ, and verbal IQ · 85; and either (d) dyscalculia or (e) neurological signs on the left side of the body. In this group, verbal IQ was significantly higher than performance IQ (106.6 · 13.0 vs. 85.1 · 13.1, respectively, p < .01). Arithmetic was the lowest score among the verbal subtests (7.8 · 3.5, p < .01) and Geometrical Design was the lowest score among the performance subtests (5.8 · 1.7). Thirteen children had soft neurological signs on the left side of the body. ADHD was seen in all 20 children, marked slowness of performance in 16, and severe graphomotor problems in 18. The latter two features have not been previously described as part of DRHS.

Journal of Learning Disabilities, Vol. 28, No. 2, 80-86 (1995)
DOI: 10.1177/002221949502800202


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