They may be referring to hyperlexia (rather than hyperverbal ability):
Hyperlexic children are characterized by word-reading ability well
above what would be expected given their age. ... Some experts believe
that most children with hyperlexia, or perhaps even all of them, lie
on the autism spectrum.
But as far as verbal ability goes, since autism is a ...
To be more specific, are there any differences in brain structure or
brain activity, that can be used to distinguish between autistic and
non-autistic person by analysing their brain structure and brain
activity while performing various tasks?
Autism and autism spectrum characteristics are defined by behavioural, cognitive and emotional terms. These aspects ...
Yes, this may happen with Asperger subtype of autism.
AS had already been described in 1981 by Lorna Wing, who first
proposed the term to refer to a special subgroup of children who,
according to Asperger’s original description, were characterized by:
social isolation and lack of reciprocity in social interactions;
normal or precocious language acquisition, ...
What seems most intuitively to me; people did not knew about autism. With time, the awareness and diagnosis increased. Many of us know weird people who often stay alone, have communication problems, have unsuccessful life, is often pitied, bullied, called with derogatory terms. Now we know all these conditions have names.
One more factor almost nobody ...
There are several other aspects that I think are not just "perceptions" but something more complicated.
Having an weak or a different theory of mind; that hinders processing in general how other people may perceive or interpret something.
Having difficulty with cognitive empathy; that hinders understanding others' motives and intentions.
Autism is an extremely broad and multidimensional set of difficulties. 2 severely autistic person does not necessarily have the exactly same set of difficulties. There are various psychometric tests and questionnaries (Related link: How do we measure autism severity) for measuring severety of autism, but you may call it a total or overall measurement of ...
More of an opinion based answer- the symptoms become more distinguishable from kids and adolescent behaviour when you age.
Restless behaviour, stimming behaviour, echolalia etc. can be confusing with typical childish behaviour.
Failing to organise things, fine motor skill problems, making clutters, forgetfulness etc. can be easily confused with adolescent ...
What you propose
Is it possible that someone has level-3 (severe) autism yet on superficial look or talk the disability does not appear?
is nonsense by the usual (DSM) definition of autism, which is based on several criteria which are behaviorally defined, i.e. from an observer's standpoint, to start with
a child must have persistent deficits in each of ...
The 3 said conditions look very similar, but their meaning is different. but they indicate different parameters or different directions. Overlap can happen, such as an "introvert autistic" or an "extrovert autistic"
Introversion is an aversion or avoidance of social situations.
Social anxiety is a fear of social situations.
Autism is an ...
There is an ongoing debate as to whether it is best to view personality disorders as being categorical or dimensional in nature. Your question infers the perspective of the categorical view. The alternative dimensional perspective suggests that the three disorders you mention are very similar, that is, these three conditions overlap to a large extent with a ...
Is sleep deprivation addictive?
That may not be a correct conclusion based solely on the symptoms of mania that some people experience. While sleep deprivation has been used to treat depression, with some success, it should be noted that acute sleep deprivation provides a brief relief against depression, but chronic sleep deprivation is also linked with ...