First Published in 1993. Routledge is an imprint of Taylor & Francis, an informa company.

Contents: I. Rapin, Foreword. L.P. Lipsitt, Preface. S.H. Broman, J. Grafman, Introduction. Part I:Cognition and Neurostructure.P.S. Goldman-Rakic, Specification of Higher Cortical Functions. Part II:Studies of Developmental Disorders.Section I:Williams Syndrome.U. Bellugi, P.P. Wang, T.L. Jernigan, Williams Syndrome: An Unusual Neuropsychological Profile. T.L. Jernigan, U. Bellugi, Neuroanatomical Distinctions Between Williams and Down Syndromes. H.J. Neville, D.L. Mills, U. Bellugi, Effects of Altered Auditory Sensitivity and Age of Language Acquisition on the Development of Language-Relevant Neural Systems: Preliminary Studies of Williams Syndrome. Section II:Autism.E. Schopler, Neurobiologic Correlates in the Classification and Study of Autism. E. Courchesne, J.P. Townsend, N.A. Akshoomoff, R. Yeung- Courchesne, G.A. Press, J.W. Murakami, A.J. Lincoln, H.E. James, O. Saitoh, B. Egaas, R.H. Haas, L. Schreibman, A New Finding: Impairment in Shifting Attention in Autistic and Cerebellar Patients. M. Sigman, What Are the Core Deficits in Autism? L. Waterhouse, Severity of Impairment in Autism. Section III:Turner Syndrome.B.J. White, The Turner Syndrome: Origin, Cytogenetic Variants, and Factors Influencing the Phenotype. B.G. Bender, M.G. Linden, A. Robinson, Neurocognitive and Psychosocial Phenotypes Associated with Turner Syndrome. R. Johnson, Jr., J.L. Ross, Event-Related Potential Indications of Altered Brain Development in Turner Syndrome. Part III:Research Methods.E. Bates, M. Appelbaum, Methods of Studying Small Samples: Issues and Examples. Part IV:Commentary.M.B. Denckla, Interpretations of a Behavioral Neurologist. J.M. Fletcher, Afterword: Behavior-Brain Relationships in Children.