Apd autism manual#

CAPDs have been an underestimated issue in ASDs for a long time. Among these, a recent study addressed central auditory processing disorders (CAPDs) as the most severely affected in ASD ( 7). This may be related to disorders of processing auditory, visual, vestibular, and/or tactile stimuli.

Several studies confirm that most of the children with ASDs have some degree of sensory dysfunction ( 6). Having a sibling with ASD, having older parents (a mother who was 35 years or older, and/or a father who was 40 years or older when the baby was born), and carrying certain genetic conditions such as fragile-X syndrome, Down syndrome, and tuberous sclerosis are the most widely studied factors. The etiology and the underlying pathogenetic mechanisms are still largely unknown, but studies show that complex environmental factors in conjunction with genetic factors play an important role in the etiogenesis ( 4, 5).

Apd autism manual#

According to the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV)-text revision, the disease was subcategorized within the diagnosis of “pervasive developmental disorders (PDD).” As this definition was open to argument, the more recent DSM-V made it simpler and gathered different diagnoses (autistic disorder, Rett syndrome, Asperger’s syndrome, childhood disintegrative disorder, and PDD not otherwise specified) together to generate the diagnosis of ASD ( 3).

Abnormal repetitive and stereotypic behaviors, restricted interests in early childhood, and deficiency of social communication are the characteristic clinical features of ASD, and boys are more likely to be affected than girls ( 1, 2). In addition to these, several studies have reported deterioration in speech perception and expression in patients with autism spectrum disorders, which may also be related to central auditory processing disorders in this unique group of individuals.Īutism spectrum disorder (ASD) is a heterogeneous group of disorders with an estimated prevalence of approximately 14.

Most of the studies investigating central auditory processing disorders in patients with autism spectrum disorders have used electrophysiological measurements such as mismatch negativity and P300 event-related potentials. There is an increasing amount of effort for studies regarding the link between autism spectrum disorders and central auditory processing disorders. Among these studies, some have addressed central auditory processing disorders. Several studies confirm that most of the individuals with an autism spectrum disorder have some degree of sensory dysfunction related to disorders of processing auditory, visual, vestibular, and/or tactile stimuli. This article provides a comprehensive review of the studies that are relevant to autism spectrum disorders and central auditory processing disorders and also discusses the relationship between autism spectrum disorders and central auditory processing disorders in the light of recent studies on this subject, which may provide new pathways in a therapeutic perspective. The etiology and the underlying pathogenetic mechanisms of autism spectrum disorders are still largely unknown.