Search results
Results from the WOW.Com Content Network
Autism is associated with several genetic disorders, [4] perhaps due to an overlap in genetic causes. [5] About 10–15% of autism cases have an identifiable Mendelian (single-gene) condition, chromosome abnormality, or other genetic syndrome, [6] a category referred to as syndromic autism.
Differences in behavioral presentation and gender-stereotypes may make it more challenging to diagnose autism spectrum disorder in a timely manner in females. [19] [20] A notable percentage of autistic females may be misdiagnosed, diagnosed after a considerable delay, or not diagnosed at all. [20]
ASD averages a 4.3:1 male-to-female ratio. The number of children diagnosed with the autism spectrum has increased dramatically since the 1980s, at least partly due to changes in diagnostic practice; it is unclear whether prevalence has actually increased; [3] and as-yet-unidentified environmental risk factors cannot be ruled out. [4]
Media portrayals of autism and violence negatively influence public opinion on autism [27] and foster negative impressions of autistic people by linking ASD with criminal behavior. [33] For example, an analysis of 100 French and Italian works of children's and young people's literature published between 1995 and 2005 featuring a main character ...
ASD (autism spectrum disorder) is a neurodevelopmental disorder marked by impairments in communicative ability and social interaction, as well as restricted and repetitive behaviors, interests, or activities not suitable for the individual's developmental stage. The severity of symptoms and functional impairment vary between individuals. [3]
The effects of trauma can be transferred from one generation of childhood trauma survivors to subsequent generations of offspring. This is known as transgenerational trauma or intergenerational trauma, and can manifest in parenting behaviors as well as epigenetically.
Rett syndrome brain samples and autism brain samples show immaturity of dendrite spines and reduction of cell-body size due to errors in coupled regulation between MECP2 and EGR2. [62] However, because of the multigene involvement in autism, the MECP2 gene has only been identified as a vulnerability factor in autism. [63]
Asperger syndrome and autism tend to get undiagnosed or delayed recognition and delayed diagnosis [88] [89] or misdiagnosed. [90] Delayed or mistaken diagnosis can be traumatic for individuals and families; for example, misdiagnosis can lead to medications that worsen behavior. [91] [92]