Children and adolescents with autism often have an enlarged hippocampus, the area of the brain responsible for forming and storing memories, several studies suggest, but it is unclear if that difference persists into adolescence and adulthood1,2.
In the autistic brain, the brain reduced connectivity, known as hypoconnectivity, allows weakly connected regions to drift apart, with sulci forming between them.” Research has shown the deeper theses sulcal pits are, the more language production is affected.
Historically, the amygdala has been thought to play a prominent role in the difficulties with social behavior that are central to autism. Researchers have long known the amygdala is significantly larger in school-age children diagnosed with autism, but it was unknown precisely when that enlargement occurs.
Compared with controls, people with autism have a slightly thinner temporal cortex, a large region associated with processing sounds and speech. They also have a thick frontal cortex, which governs complex social and cognitive processes.
A new study led by UC Davis MIND Institute researchers confirms that brain development in people with autism differs from those with typical neurodevelopment. According to the study published in PNAS, these differences are linked to genes involved in inflammation, immunity response and neural transmissions.
However, brain scans using MRI and other methods do indeed help to recognize targets for the treatment of autism and may even help to diagnose autism in the future.
Older epidemiological studies suggested that the IQ-related spectrum tends to be skewed to the left, i.e., a larger proportion of individuals with ASD have below average intelligence, while only few individuals with ASD may have an IQ above average.
Analytical Thinking: People with an autism spectrum disorder think in a logically consistent way that leads to quick decision making. These thinkers can make decisions without experiencing the framing effect that inhibits most neurotypicals from making decisions without bias.
For people on the autism spectrum, the world is a bewildering place. With oversensitive sensory systems, they battle to process the maelstrom of information flowing into their brains. Often the result is sensory overload, leading to signature behaviours such as tantrums, anxiety and social withdrawal.
Compared with their non-autistic peers, autistic children have significantly faster expansion of the surface area of their cortex from 6 to 12 months of age. In the second year of life, brain volume increases much faster in autistic children than in their non-autistic peers.
There is no consensus on whether autism is a form of brain damage. Some researchers believe that autism is caused by a combination of genetic and environmental factors, while others argue that it is a result of brain damage.
There are many different factors that have been identified that may make a child more likely to have ASD, including environmental, biologic, and genetic factors.
Overall, while there is no set age at which the autistic brain fully develops, it's important to focus on providing support and resources for individuals with autism throughout their lives. By doing so, we can help them reach their full potential and lead happy and fulfilling lives.
It's something you're born with. Signs of autism might be noticed when you're very young, or not until you're older. If you're autistic, you're autistic your whole life. Autism is not a medical condition with treatments or a "cure".
Main signs of autism
finding it hard to understand what others are thinking or feeling. getting very anxious about social situations. finding it hard to make friends or preferring to be on your own. seeming blunt, rude or not interested in others without meaning to.
Intense interests
Many autistic people have intense and highly-focused interests, often from a fairly young age. These can change over time or be lifelong. It can be art, music, gardening, animals, postcodes or numbers. For many younger children it's Thomas the Tank Engine, dinosaurs or particular cartoon characters.
While cognitive empathy can be lower in people with autism, affective empathy—which is based on instincts and involuntary responses to the emotions of others—can be strong and overwhelming. In fact, newer research suggests that some people with autism may actually feel other people's emotions more intensely.
Though autistic people may respond to emotions and social cues differently than neurotypical people, this does not mean they lack empathy. Just like neurotypical people, levels of empathy vary between autistic individuals.
The overall findings of the study suggest that, compared with neurotypical individuals, individuals with ASD experience greater difficulty with decision-making.
Some believe that autistic people aren't interested in romantic relationships or aren't capable of romantic love. However, this is far from the truth. In fact, autistic people can make wonderful partners.
Does The Father Or Mother Carry The Autism Gene? Autism was always thought to have a maternal inheritance component, however, research suggests that the rarer variants associated with the disorder are usually inherited from the father.
Advances in diagnostic capabilities and greater understanding and awareness of autism spectrum disorder seem to be largely driving the increase, the Rutgers researchers said. But there's probably more to the story: Genetic factors, and perhaps some environmental ones, too, might also be contributing to the trend.
1 in 100 children are diagnosed with autism spectrum disorder as of 2021. Autism prevalence has increased 178% since 2000. The country with the highest rate of diagnosed autism in the world is Qatar, and the country with the lowest rate is France.