Autism and Autism spectrum disorder both are the general terms. It is a complex disorder of brain development. These disorders are found, in varying degrees, by difficulties in social interactions, verbal and nonverbal communication and repetitive behaviors.
However, the most obvious symptoms of autism tend to emerge between 2 and 3 years of age.
To understand the neurological difference. We should go through the different types of autism. Let’s see what these are.
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Neurological differences between types of Autism
There are types of Autism on the basis of Neurological difference as listed below:
- Within brains affected by the Autism, the genes involved in the cell function of the brain. It tends to be expressed as abnormally at low levels. While the genes associated with the generation of certain immune cells. They were expressed at higher than normal levels.
- There are so many genes which are first turned on during embryonic development. They noted and suggested that the abnormal development of brains affected by the Autism can begin very early.
- In other ways, the Scientists looked closely at the gene expression in the frontal cortex. This part of the brain that controls higher-level thinking. And in the temporal cortex, which controls sensory integration.
- Autism does not affect the brain. Scientists found the stark difference in gene expression between the two regions. By their different functions, expect these regions.
- By Contrast, these differences in frontal versus temporal lobe gene expression affect Autism. But it disappeared in those affected by the Autism. These results suggest a blurring of key differences during prenatal brain development.
Different types of autism to understand the neurological difference between them
- Asperger’s Disorder: People with Asperger syndrome usually develop spoken language. In the same way as every developing child but have to face difficulties in social communication. These difficulties grow more with age as the social expectations increase. Since the people with Asperger’s disorder are often intelligent but they often say as “ Geek Syndrome ”.
- Pervasive Developmental Disorder Not Otherwise Specified(PDD-NOS): People who have most of the same symptoms similar to classic autism. They will need the same diagnosis and help that autistic child require. The differences between PDD-NOS and autism are slight and usually only apparent to researchers and doctors.
- Mild Autism: Mild autism is identical to Asperger syndrome. People with mild autism may be difficult to acknowledge until they are under stress or coping with complex social situations. Most people with mild autism have Level 1 Autism Spectrum Disorder.
- High Functioning Autism: High functioning autism is like mild autism. It is identical to Asperger syndrome and termed as Level 1 Autism Spectrum Disorder. Dissimilar to people who were diagnosed with Asperger syndrome. People with HFA developed language slowly. HFA is a real and significant disability. It can cause challenges in managing social conditions, school demands, work expectations, or recreational activities.
- Severe Autism: It is a Level 3 Autism Spectrum Disorder. Severe autism is challenging to an extreme level and may include aggression and other complex behaviors. Most people with severe autism never gain meaningful use of communication. Some people who are suffering from severe autism do gain the ability to communicate through signs, picture boards, or other means.
By Contrast, these differences in frontal versus temporal lobe gene expression affect Autism. But it disappeared in those who are affected by the Autism.
Conclusion
The Scientists discovered a remarkable consistency in the molecular changes occurring in the brains. Those with ASD, across a range of autism subtypes. The study found that two interconnected gene networks abnormally expressed in the brains of affected persons. These results suggest that diverse types of Autism may share a similar biological basis.
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