Abstract
The neurological learning disability syndrome has become well-defined, however, its etiology is far from understood. Probably, there is no one etiology for this syndrome; there are several ways in which nervous system functioning can be altered to produce these findings. But clinical findings in children with the neurological learning disability syndrome are too consistent and too similar from child to child to accept the popular concept that random trauma or embarrassment occurring at various times during the fetal or post-delivery maturation of the central nervous system produced the syndrome. Neurochemical, pharmacological, physiological, and clinical data are presented in an effort to support the view that a neurohumoral imbalance might be the etiologic factor in one group of children with the neurological learning disability syndrome.