What We Know About Asperger Syndrome: Epidemiology and Etiology

Syntactic and affective prosody recognition: Schizophrenia vs. Autism spectrum disorders

“…Given that individuals with this syndrome may or may not have intellectual disability and that these two subgroups are substantially different from each other, in the present study we focus on those without accompanying intellectual impairment (ASD w/o intellectual impairment). ASD w/o intellectual impairment is present from birth, but usually becomes noticeable at the age of 5 or 6 years old [ 8 ]. The prevalence of the disorder ranges from 0.67 to 48 cases out of 10.000 births and the female to male ratio is 1:4 [ 8 ] (the range of prevalence cited is specific to Brick Township, New Jersey, and, thus, it may differ in other locations).…”

Oral Surgery Management in Asperger Syndrome: A Case Report

“…1 The rate of Asperger syndrome, individually or as a component of the autism spectrum, is not definitively known. 6 Estimates from a variety of sources range from 0.67 to 48 to 10,000 children. 6 A United States government survey (Centers for Disease Control and Prevention; CDC) indicates that the prevalence may even be as high as 1 in 50.…”

“…6 Estimates from a variety of sources range from 0.67 to 48 to 10,000 children. 6 A United States government survey (Centers for Disease Control and Prevention; CDC) indicates that the prevalence may even be as high as 1 in 50. The overall prevalence of Asperger syndrome has been estimated to 2-7 out of every 1,000, and it is 2-4 times more common in boys than girls.…”

Sentence processing

“…Therefore, the different diagnostic criterions (Szatmani et al, 1989;Gillberg & Gillberg, 1989;Gillberg, 1991;Tantam, 1988a) and manuals (DSM-IV, ICD-10, DSM-5), as well as the debate on whether Asperger syndrome and autism (especially HFA) are distinct disorders or parts of the same impairment are the main reasons for which there is inconsistency in the reported epidemiologic rates. Metz et al (2013) in their recent review state that Asperger syndrome ranges from 0.67 to 48 cases out of 10.000 births. However, Attwood (2008) claims that, according to his estimations from the clinic he works, only half of the cases of individuals with AS are diagnosed, due to their ability to camouflage their deficits and the incapability of clinicians to detect the symptoms.…”

“…This pattern of activation creates an overall less synchronous activity between the two areas, compared to unimpaired brains, which leads to ineffective processing (Just et al, 2004). Other impaired areas related to autistic characteristics are the temporal lobe, the cerebellum, the amygdala, the inferior frontal gyrus, the temporal and medial prefrontal cortices and the hippocampus, which are responsible for the emotional processing, the recognition of faces and facials expressions, the social behavior, the procedure of learning and the memory (Welchew et al, 2005;Catani et al, 2008; for related reviews see also Brock et al, 2002;Rubenstein & Merzenich, 2003;Belmonte et al, 2004aBelmonte et al, , 2004bMetz, 2013).…”