IMPAIRMENT NEURAL DEVELOPMENTS AND SYMPTOMS OF AUTISM DISORDER Essay

Autism spectrum disorders atomic number 18 a common uneasy developmental thinker condition (Cheng et al., 2010). It does not have unifying neurobiological or pathological etiology (Geschwind& Levitt, 2007) .It characterized by impaired social interaction and communication skills and restricted repetitive behavior (Johnson & Myers, 2007). Medical condition such as mental retardation, chromosomal anomalies and seizures are often appear with autism (Casanova, 2007). During firstly 3 stratums of childhood, these major symptoms are revealed (Casanova, 2007). Autism is one of three recognize condition and the other two know as Aspergers syndrome (Levy, Mandell, & Schultz, 2009). in that respect are also secondary symptoms that may not be shown in individual with autism disorder such as lower IQ carrying into action and sensory sensitivity (Alexander et al., 2006). It fall outs due to altered recognition and connection of brain nerve cell and their synapses (Levy et al., 2009) . Other factor contri onlye to the natural event of autism are genetics or environmental factors or both (Rodier, 2004). In 1960s, it was estimated to occur in five in each 10,000 child worldwide but this number is increased recently to be 72 in every 10,000 child since the 1990s due to the change in diagnostic serve and media attention (Newschaffer et al, 2007). The reason of increasing this disorder in recent year is still unknown (Comi, Zimmerman, Frye, Law, & Peeden, 1999). This essay will discuss the causes of Autism spectrum disorders, brain building changes that involved in this condition and thus the major and secondary symptoms occurrence in relating to these structure impaired development in the brain.Autism appears between fertilized egg development and the first 3 years of child development and c... ... Schendel, D., & Windham, G. C. (2007).The Epidemiology of Autism Spectrum Disorders. Annu. Rev. unrestricted Health, 28, 21.121.Geschwind D. H., & Levitt, P. (2007) , Autism spectrum disorders developmental disconnection syndromes. Neurobiology 17,10311.Johnson, C. P., & Myers, S. M. (2007). Identification and Evaluation of Children With Autism Spectrum Disorders. PEDIATRICS, 120, 1183-1215.Levy, S. E., Mandell, D. S., & Schultz, R. T. (2009). Autism. The Lancet, 374(9701), 1627 1638. Lam, K. S. L., & Aman, M. G. (2007). The Repetitive Behavior Scale-Revised nonsymbiotic Validation in Individuals with Autism Spectrum Disorders. Springer, 37, 855866.Rodier, P. M. (2000). The Early Origins of Autism. Scientific American, 56-63.Rodier, P. M. (2004). Environmental Causes of Central skittish System Maldevelopment. PEDIATRICS, 113, 1076-1083.