[Perisylvian magnetoencephalografic impairments in patients with autism spectrum disorders].

Introduction: The perisylvian areas, located around the Sylvian fissure, are constituted by frontal, temporal and parietal brain regions. These are connected forming specialized neural networks and play a primary role in the development of linguistic skills and social cognition. These areas are a possible neuronal substrate of cognitive and behavioral impairments in patients with autism spectrum disorders (ASD).

[Interest of electroencephalogram in autism].

Autism spectrum disorders (ASD) have been associated with physiopathology in cerebral organization and function. Electroencephalography is a noninvasive technique that provides information about brain electrocortical activity. Electroencephalographic (EEG) studies using power spectra have documented differences associated with ASD, particularly in frontal areas that have been functionally linked to cognitive functions that are disrupted in individuals with ASD.

[Comprehensive models of treatment in individuals with autism spectrum disorders].

INTRODUCTION. The steady increase in the number of children with autism spectrum disorders, has led to a better social awareness but also to a higher demand for specific interventions. This has questioned what the most appropriate and effective procedures for detection, diagnosis and treatment are.

[Autism and neural connectivity].

Introduction: Recent studies have investigated functional and structural brain connectivity in patients with autism spectrum disorders (ASD). Neuroimaging and electroencephalographic studies have found evidences suggesting that connectivity patterns are altered in ASD.

Aims: To review recent works from structural and functional neuroimaging and neurophysiological studies, and to provide a summary of advances in research implicating disordered connectivity in ASD.

[Autism spectrum disorders and mu rhythm. A new neurophysiological view].

Electroencephalographic studies of subjects with autism spectrum disorders (ASD) provide evidences of brain functional aspects in this pathology. Mu rhythm can be reactive in normal population (mu suppression) to both self-movements and to movements performed by others. These reactivities are considered to be related to mirror neurons activity.

[Neurolinguistic aspects in autism spectrum disorders. Neuroanatomical and functional relations].

Introduction And Development: Impairments in language and communication are a defining feature of autism spectrum disorders. There is significant variability in linguistic abilities in autism spectrum disorders. They have difficulties with certain aspects of language such as semantics functions, syntax, prosody and phonology, although the most evident language deficits concern to pragmatics functioning.

[A study of autism spectrum disorders and language disorders using magnetoencephalography. The scientific contribution of Dr. Muñoz Yunta].

Introduction And Development: Autism spectrum disorders (ASD) are characterised by the alteration of three basic areas of behaviour, qualitative alterations in reciprocal social interaction, qualitative alterations in communication and patterns of behaviour, and stereotyped, repetitive and restrictive activities and interests. Specific language impairment (SLI) is a disorder in which language is slow and retarded with respect to the patient's chronological age, and which is not related to a sensory-auditory or motor deficit or to a pervasive developmental disorder. In both disorders, epilepsy has an important role.

[Autism, epilepsy and genetics].

Introduction: The rate of epilepsy in autism is higher than in other developmental disorders and estimates point to a frequency range of between 7% and 42%. Between 40% and 47% of autistic children suffer from clinical epilepsy. Onset of epilepsy may occur at any age.

Magnetoencephalographic pattern of epileptiform activity in children with early-onset autism spectrum disorders.

Objective: To provide further data around magnetoencephalographic (MEG) findings in early-onset autism spectrum disorders (ASD).

Methods: Thirty-six children (mean age 7 years) diagnosed of PDD (DSM-IV, ICD-10) were studied. There were 22 children with autistic disorder, 9 with Asperger's syndrome, and 5 with pervasive developmental disorder not otherwise specified (PDD-NOS).

[A comparative study of pragmatic language disorders and autism spectrum disorders using magnetoencephalography].

Introduction: Pragmatics refers to the social use of language; its precursors are already present during the process of maturing, during the preverbal stage, and become manifest when the child starts to point and to share his or her attention with another person. In cases of specific language impairment (SLI) and autism spectrum disorders (ASD) it can be altered to varying degrees.

Patients And Methods: Due to the difficulties involved in diagnosis from a clinical point of view, we carried out a study by means of magnetoencephalography (MEG) on a series of 11 patients who had SLI and another series of 9 patients with ASD, in order to determine whether MEG is capable of distinguishing these diagnoses.

[Specific language disorders: their diagnosis, classification and study using magnetoencephalography].

Introduction: Specific language disorder (SLD) is defined as a disorder in which language is slow and retarded with respect to the patient's chronological age, and which is not related to a sensory-auditory or motor deficit or to a pervasive development disorder; in other words, structural and functional neurological developmental disorders must be excluded. After many studies and attempts to reach an agreement, specific language disorders have been broadly classified into two groups: specific expressive language disorder and specific receptive-expressive language disorder.

Aims: Our objective was to study SLD using magnetoencephalography (MEG) in order to look for epileptiform manifestations in precise language areas.

[Functional neuroanatomical correlations of the perisylvian area in autism spectrum disorders].

Introduction: Autism spectrum disorders cover a continuum of disorders ranging from severe autism to mild autism and Asperger's syndrome. They are considered to be a subgroup of the pervasive development disorders and are characterised by the alteration of three basic areas of behaviour, qualitative alterations in reciprocal social interaction, qualitative alterations in communication and patterns of behaviour, and stereotyped, repetitive and restrictive activities and interests. These alterations are expressed to a greater or lesser degree depending on the level of severity of the disorder and can be detected and quantified by clinical instruments such as the ADI-R (Autism Diagnostic Interview-Revised) and the CARS (Childhood Autism Rating Scale).

[A magnetoencephalographic study of generalised developmental disorders. A new proposal for their classification].

Introduction: Autistic spectrum disorders (ASD) is a term that is not included in DSM IV or in ICD 10, which are the diagnostic tools most commonly used by clinical professionals but can offer problems in research when it comes to finding homogenous groups.

Development: From a neuropaediatric point of view, there is a need for a classification of the generalised disorders affecting development and for this purpose we used Wing's triad, which defines the continuum of the autistic spectrum, and the information provided by magnetoencephalography (MEG) as grouping elements. Specific generalised developmental disorders were taken as being those syndromes that partially expressed some autistic trait, but with their own personality so that they could be considered to be a specific disorder.