Conclusion: Our data suggest that nearly half of individuals with ASD have average or higher IQ. Boys with ASD are more likely to have average or higher IQ than girls. Patients with ASD and higher IQ remain at risk for not being identified.
Autism Prevalence
31% of children with ASD have an intellectual disability (intelligence quotient [IQ] <70), 25% are in the borderline range (IQ 71–85), and 44% have IQ scores in the average to above average range (i.e., IQ >85). Autism affects all ethnic and socioeconomic groups.
Dr. Coplan recommends the comprehensive Test of Non-Verbal Intelligence (TONI), saying that children who do poorly on typical intelligence tests may do very well on the TONI. 4 The test looks more directly at what children know than other tests—not at how well children can use language to communicate what they know.
Savant syndrome is a rare, but extraordinary, condition in which persons with serious mental disabilities, including autistic disorder, have some 'island of genius' which stands in marked, incongruous contrast to overall handicap.
Those with Asperger's syndrome, in contrast, must by definition have suffered no cognitive delay during their first 3 years of life. This means that they will usually have at least a “normal” IQ. In some cases, their IQ may be very high, even in the genius range.
It's long been known that a subset of ASD patients will show extraordinary gifts in mental acuity and computation. These autistic savants exist at the other end of the spectrum, exhibiting feats of mental intelligence that the neurotypical can only marvel at.
'High functioning autism' is a term often used for individuals diagnosed with ASD who have an intelligence quotient (IQ) estimate of 70 or above.
However, the fitness tests showed that aerobic fitness, flexibility and body mass index of children with autism spectrum disorders was similar to the children without autism. The strength test was the only one that children with autism spectrum disorders did not perform as well in, the study said.
The starting engine for that talent is an extraordinary eye for detail. For autistic people, there seems to be a different balance between the details and the bigger picture. Autistic people struggle to recognise what other people are thinking intuitively, but this gives them an advantage in avoiding herd mentality.
Someone who is considered a savant may be especially skilled in art, math, music, memory recall, or another subject. Savant syndrome is commonly associated with autism but can occur alongside other conditions.
From 1966 to 1998, studies found that about only one-fifth of the people with ASD functioned in the "normal range" of intelligence, according to a 1999 review. But years later, in 2014, a U.S. study found that almost half of the children with ASD had average or above average intelligence, that is, an IQ score above 85.
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.
It is a myth that all autistic people have an intellectual disability. The truth is that 2/3 of people on the spectrum have average or above-average IQs.
Although the exact cause of autism is still unknown, there is evidence to suggest that genetics play a significant role. Since autism is less prevalent in females, autism was always thought to be passed down from the mother. However, research suggests that autism genes are usually inherited from the father.
However, there is no correlation between this condition and intelligence. In fact, according to one study , ADHD affects people in the same way across high, average, and low IQ score ranges. ADHD is a neurodevelopmental condition that can make it difficult for people to focus and to control impulsive behaviors.
Memorising and learning information quickly. Thinking and learning in a visual way. Logical thinking ability. May excel (if able) in academic areas such as science, engineering and mathematics as they are technical and logical subjects that do not heavily rely on social interaction.
Not everyone with autism happens to be a math whiz, but a new study suggests that autistic kids who do show above-average math skills do so because they have slightly different brain organization than children who don't have autism. The autistic children used a different part of the brain to solve problems.
Sensory Issues
Many people with autism experience sensory processing disorder. This is more commonly known as sensory overload. Noise, crowds, bright lights, strong tastes, smells, and being touched can feel unbearable to someone with HFA. This makes going to restaurants, movies, and shopping malls difficult.
Rote memory skills and autism. Autistic children are often good at learning by heart (rote memory). Many autistic children can remember large chunks of information, like conversations from movies, words to a song, number plates and so on.
While autism does not necessarily get worse with age, there are some factors that can exacerbate symptoms and make it more difficult for individuals to manage their condition. For example, stress and anxiety can have a significant impact on the symptoms of autism.
Autistic people are thought to have difficulties with identifying and understanding their own emotions. This is referred to as emotional self-awareness.
Adhara Pérez Sánchez has an IQ of 162. She has a bachelors degree in system engineering and aspires to study astrophysics at the University of Arizona. Adhara Pérez Sánchez of Mexico City, has an IQ higher than Albert Einstein. The child prodigy is receiving her master's degree in engineering soon.
Therefore, it appears that while some individuals may be aware they are autistic, others may not fully understand why they have difficulties connecting with people socially or engaging in conversation - yet still realize they are 'different.