BACKGROUND Autistic spectrum disorders are a group of neurological and developmental disorders associated with social, communication, sensory, behavioral and cognitive impairments, as well as restricted, repetitive patterns of behavior, activities, or interests.The aim of this study was a) to analyze QEEG findings of autistic patients and to compare the results with data base; and b) to introdu...

BACKGROUND language and communication disorders are proposed as one of the three fundamental criteria for the description or diagnosis of pervasive developmental disorders (PDD), along with social disabilities and a narrow focus of interest. This way, the determination of simple procedures that can be used by health and education professionals to identify the persons that need specialized servi...

In accordance with the developmental theories, the formation of gender identity is subject to an interactive logic in which biology, social coexistence and culture are considered as an inseparable unit. When studying clinical conditions of multifactorial origin and with specific characteristics it has become essential consider the impact the formation of gender identity, mainly when maintains a...

This article reviews epidemiological studies of autism and related disorders. Study designs and sample characteristics are summarized. Currently, conservative prevalence estimates are: 13/10000 for autistic disorder, 21/10000 for pervasive developmental disorders not otherwise specified, 2.6/10000 for Asperger disorder, and 2/100000 for childhood disintegrative disorder. Newer surveys suggest t...