Periventricular Leukomalacia (PVL): An Identical Twin Case Study Illustrationof White Matter Dysfunction and Nonverbal Learning Disability (NLD)[sup *].

This paper discusses the implications of Periventricular Leukomalacia (PVL)lesions for the development of Nonverbal Learning Disabilities (NLD) as illustratedthrough an identical twin case study. PVL lesions were identified in an 8-year-oldchild, but were not detected in his identical twin brother who served as amatched comparison. While the nonclinical twin displayed a largely unremarkableneuropsychological profile, the clinical twin evidenced a distinct patternof social, intellectual, academic, and neuropsychological test results oftenidentified among children with PVL and those with the NLD syndrome. The clinicaland theoretical implications for this case study are discussed. [ABSTRACT FROM AUTHOR]