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PDD-NOS was one of four disorders collapsed into the diagnosis of autism spectrum disorder in the DSM-5, [3] and also was one of the five disorders classified as a pervasive developmental disorder (PDD) in the DSM-IV. [4] The ICD-10 equivalents also became part of its definition of autism spectrum disorder, as of the ICD-11.
The first four of these disorders are commonly called the autism spectrum disorders; the last disorder is much rarer, and is sometimes placed in the autism spectrum and sometimes not. [2] [3] There is a division among doctors on the use of the term PDD. [4] Many use the term PDD as a short way of saying PDD-NOS. [4]
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder characterized by persistent deficits in social interaction and social communication, and repetitive, restricted and inflexible patterns of behavior, interests, and activities. Common associated traits such as sensory abnormalities and motor coordination ...
Unusual responses to sensory stimuli are more common and prominent in individuals with autism, and sensory abnormalities are commonly recognized as diagnostic criteria in autism spectrum disorder (ASD), as reported in the DSM-5; although there is no good evidence that sensory symptoms differentiate autism from other developmental disorders. [84]
Autism, also called autism spectrum disorder (ASD) or autism spectrum condition (ASC), is a neurodevelopmental disorder characterized by symptoms of deficient reciprocal social communication and the presence of restricted, repetitive, and inflexible patterns of behavior. While its severity and specific manifestations vary widely across the ...
The difference between this diagnosis and autism spectrum disorder is that in the latter there is also a restricted or repetitive pattern of behavior. [13] Unspecified communication disorder – for those who have symptoms of a communication disorder but who do not meet all criteria, and whose symptoms cause distress or impairment. [13]
Often, such speech can act as evidence for autism spectrum disorder (ASD) [3] or a thought disorder, [5] a common symptom in schizophrenia [6] or schizoid personality disorder. [7] To diagnose stilted speech, researchers have previously looked for the following characteristics: [8] speech conveying more information than necessary
Specific language impairment (SLI) (the term developmental language disorder is preferred by some) [1] is diagnosed when a child's language does not develop normally and the difficulties cannot be accounted for by generally slow development, physical abnormality of the speech apparatus, autism spectrum disorder, apraxia, acquired brain damage or hearing loss.