The Importance of Defining Shared Criteria for the Diagnosis of Nonverbal Learning Disability

The interest in nonverbal learning disability (NVLD) has increased during the past several years. NVLD is a relatively unknown neurodevelopment disorder characterized by visuospatial difficulties, such as problems in learning or encoding through pictures, processing gestures or motor patterns, and orienting in space. Children with NVLD usually have good verbal abilities and a refined vocabulary but can develop emotional difficulties.1 The fact that NVLD is still nearly unknown is demonstrated by its absence in the international classification systems.