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A spacetime diagram is a graphical illustration of locations in space at various times, especially in the special theory of relativity.Spacetime diagrams can show the geometry underlying phenomena like time dilation and length contraction without mathematical equations.
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11] Sensory abnormalities are also included in the diagnostic manuals ...
Pervasive developmental disorder not otherwise specified – (PDD-NOS) was a pervasive developmental disorder, and is also considered an autism spectrum disorder. It was diagnosed when deficits in social interaction and verbal/nonverbal communication or stereotyped, repetitive behaviors and interests were present but criteria was not met for a ...
A spacetime diagram is typically drawn with only a single space and a single time coordinate. Fig. 2-1 presents a spacetime diagram illustrating the world lines (i.e. paths in spacetime) of two photons, A and B, originating from the same event and going in opposite directions. In addition, C illustrates the world line of a slower-than-light ...
Engaging in special interests can bring autistic people great joy [25] [26] and many autistic people spend large amounts of time engaged in their special interest. [27] In adults, engaging with special interests has been shown to have positive outcomes for mental health, [28] self-esteem, [29] and can be used to manage stress.
Classic autism, also known as childhood autism, autistic disorder, or Kanner's syndrome, is a formerly diagnosed neurodevelopmental disorder first described by Leo Kanner in 1943. It is characterized by atypical and impaired development in social interaction and communication as well as restricted, repetitive behaviors, activities, and interests.
The presentation and diagnosis of autism spectrum disorder may vary based on sex and gender identity. Most studies that have investigated the impact of gender on presentation and diagnosis of autism spectrum disorder have not differentiated between the impact of sex versus gender. [19]
As with many things, when it comes to real-world applications, autism spectrum disorder is probably best not thought of as a "disorder" or "disability", as it is really just differences in thought-processing methods. Adding the label of disorder or disability changes the way we think about things; it shifts us into the paradigm of deficiency ...