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Describe autism spectrum disorder
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Autism or autism spectrum disorder (ASD) is behavioral and social communication impairment. It is a broad-based neurodevelopment or brain-based disorder that is the result of genetic events that occur prior to birth with widespread effects on cognitive and socio-emotional development (Geschwind, 2009).
Scientist’s aren’t certain about what causes autism, but it’s generally accepted that it is caused by abnormalities in brain structure or function, genetics/heredity, or environmental factors. Studies have found several irregularities in many regions of the brain, and abnormal levels of serotonin and other neurotransmitters in the brain. According to the National Institute of Neurological Disorders and Stroke (NINDS) autism can result from the disruption of normal brain development early in fetal development caused by defeats in genes that control brain growth and regulate how brain cells communicate with each other. There are several studies in process to determine the genetic/heredity factors associated with autism. In some cases, the parents and/or relatives can have certain medical conditions including Fragile X syndrome, Rett syndrome tuberous sclerosis, some emotional disorders, and untreated phenylketonuria (PKU) that can result in an autistic baby. Research also indicates other factors besides genetics contributing to the increase in autism. Head researcher Hjordis Osk Atladottir from the University of Aarhus, Denmark emphasize that during pregnancy women with influenza were at twice the risk of their unborn baby developing autism. The study of persistent fevers that lasted at least a week tripled the risk for an autistic baby (Hjordis Osk Atladottir). Furthermore, women who used antibiotics during their pregnancy were at...
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Works Cited
American Psychiatric Association DSM-IV (1984.) Diagnostic and Statistical Manual of Mental Disorders (4th ed.). American Psychiatric Association.
Baron-Cohen, S. (1985). Mindblindness: An essay on autism and theory of mind. Cambridge, Massachusetts: MIT Press.
Baron-Cohen, S., Ring, H.A., Bullmore, E. T., Wheelwright, S., Ashwin, & Williams, S. C. R. (2000). The amygdala theory of AUTISM. Neuroscience. Behavior Review, 24, 434-438.
Geschwind, D. H., & Levitt, P. (2007). Autism spectrum disorders: developmental disconnection syndromes. Current Opinion in Neurobiology, 17, 103-111.
Minshew, N.J., & Williams, D.L. (2007). The new neurobiology of autism: Profile of a complex information processing disorder. Journal of the international Neuropsychological Society, 3, 303-316.
Rowe, Peter. “Delving into the Mystery of Autism.” San Diego Union-Tribune 16 October 2001. 9 December 2001
... genetics and environment play a role. Researchers have identified a number of genes associated with the disorder. Studies of people with A.S.D. have found irregularities in several regions of the brain. Other studies suggest that people with autism have abnormal levels of serotonin or other neurotransmitters in the brain. These abnormalities suggest that autism could result from the disruption of normal brain development early in fetal development caused by defects in genes that control brain growth and the regulation of how brain cells communicate with each other. With so many answers as to what may cause autism, it makes treatment for autism particularly difficult as there currently is no one standard “fix.” In fact, there are several types of therapy that may help minimize symptoms of A.S.D. and the effectiveness of each program differs for each individual.
Autism is a brain dysfunction genetically passed down and resulting with abnormalities in the corpus callosum which allows for one to efficiently communicate. Amygdala which facilitates regular emotions and social behavior, and lastly the cerebellum which determines hand eye and motor skill as well as neuron activity that affect the brain in autism. Spect scans of children with autism show an unusual amount of nerve fibers in the brain. At birth their brains are disproportionately smaller than most beings but in short lapse of a year there brains grow rapidly and above average for their age at a year and a half old. All these facets play a role in the main reasoning for lack of transmission from one side to the other (delaying responses and reactions). In scientific research there is no clear explanation of which autism originates or is spawne...
3. Mesibov, G., Lynn, A. and Klinger, L. 1997. Autism; Understanding the Disorder. New York: Plenum Press
“Autism is a lifelong developmental disability that affects how someone communicates with, and relates to other people. Autism also affects how a person makes sense of the world around them ”(autism.org). People wonder the causes of this disability, but what they do not know is there has not been an official cause yet determined! Although there hasn’t been an official cause of autism, there are a lot of theories people believe cause autism. One of the main theories is what pills or vitamins women take during their pregnancy. During pregnancy women have to be very careful on what antibiotics or vitamins they take. Sometimes the child can be affected by the pill which leads to problems during birth. “Another major theory is exposure to chemical pollutants, metals, pesticides, etc.” (webmd.). These substances contain a lot of poisons, chemicals, or bacteria that are very dangerous for a fetus to be exposed too. This is why people say pregnant women should just stay away from places where these substances are. But the main theory that many people think causes autism is vaccines. Although vaccines are supposed to prevent disease, people think there is a chemical in them which causes autism, but this theory is false! The cause of autism has not yet been fully determined, but it is not caused by vaccines; it is usually caused by genetics, metabolic or neurological factors, or lastly problems that occurred during birth.
Autism is a neurodevelopmental disorder that has been a significant topic of research over the last few decades. While there is no conclusive findings as to what causes Autism, there are many reasonable theories that help to explain how this particular disorder develops. The purpose of this review is to explore and discuss various theories presented in biopsychology as to what causes Autism. Through the examination of several articles and studies, several theories will be presented. Such theories will include the Executive Function Theory, the effect of thimersol and vaccines, the effect of SHANK3, environmental factors, and genetics, all of which will be discussed in further detail.
American Psychiatric Association. (2000). Diagnostic and Statistical Manual of Mental Disorders: Fourth Edition. Arlington : American Psychiatric Association.
Ramachandran, Vilayanur S., and Lindsay S. Oberman. "Broken Mirrors: A Theory of Autism." Scientific American Journal. (2006): 62-69. Web. 29 Nov. 2013.
There is no known single cause of autism. Researchers are investigating a number of possible theories including genetics, heredity, medical problems, problems during pregnancy or delivery, as well as environmental influences. It is widely accepted that it is caused by abnormalities in the brain structure or function. There is evidence from neuropathological studies that autism has its origins in abnormal brain development early in prenatal life which continues postnatally, showing acceleration in brain growth measured by head circumference (Zwaigenbaum, L., Bryson, S., Rogers, T., Roberts, W., Brian, J., & Szatmari, P., 2005). The disorder also seems to have a genetic basis, although researchers have yet to find the specific genes that link to the onset of autism. There could be a cluster of genes that have somehow interfered with normal brain development and function. Studies show that twins of children with autism were more likely to be autistic themselves than the regular population, demonstrating there is a heredity lin...
In 1943, a man by the name of Leo Kanner formally identified autism; he labeled the disorder ?autistic disturbance of affective contact? (?Autism Web? n.d.). Autism was first described in America, officially, in 1980 with the publication of DSMIII (Tanguay, Robertson, Derrick, 1980). There was much confusion, both before and after Kanner's description, regarding the continuity of autism with schizophrenia and other then-recognized forms of psychosis (Lippcott/Williams & Wilkins, 1999). Kanner noticed that autistic infants had a reverse pattern typically observed in normal infants.
Diagnostic and statistical manual of mental disorders: DSM-IV-TR. (4th ed.). (2000). Washington, DC: American Psychiatric Association.
Office of Communications and Public Liaison. (2013, November 6). NIH. Retrieved from National Institute of Neurological Disorder and Stroke: http://www.ninds.nih.gov/disorders/autism/detail_autism.htm#243513082
What is Autism? People are quick to label people as Autistic but very rarely understand what it means though they may nod their head and say "ohh makes sense". Autism - also know as ASD, Autism Spectrum Disorder- is a complex developmental disorder affecting primarily ones communication and social interaction skills. Meaning they have difficulties communicating effectively or even at all. They struggle in social setting and don 't typically excel in social games or activities.
Autism is a disorder characterized by significant problems in communication and social functioning. Autism is actually called Autism Spectrum Disorder and encompasses a broad range disabilities such as Asperger syndrome, Rett’s Syndrome, and Pervavasive Development Disorder (Dunlap & Fox, n.d.). There are also varying degrees of the disorder from low-functioning (no communication and no social interaction) to high-functioning (some communication and inappropriate but existent social skills.)
I know autism when I see it. For those not familiar with autism, Autism Speaks, the world’s leading autism science and advocacy organization, defines autism and autism spectrum disorder (ASD), as both general terms for a group of complex disorders of brain development. These disorders are characterized, in varying degrees (hence, a “Spectrum” that includes both low- and high-functioning individuals), by difficulties in social interaction, verbal and nonverbal communication and repetitive behaviors.