PDD, Pervasive developmental disorder entities
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Clinic
- PDD, as opposed to specific developmental disorders (SDD)
- It is a group of disorders characterized by delays in the development of multiple basic functions including socialization and communication.
Types
- Autism
- Asperger syndrome (9% of autism diagnoses)
- PDD-NOS (47% of autism diagnoses)
- Childhood disintegrative disorder (CDD)
- Overactive disorder associated with mental retardation and stereotyped movements
- Rett syndrome
- The first four of these disorders are commonly called the autism spectrum disorders (ASD ); the last disorder is much rarer, and is sometimes placed in the autism spectrum and sometimes not.
- The terminology PDD and ASD is often used interchangeably and varies depending on location
Signs / Symptoms
Symptoms of PDD may include behavioral and communication problems such as:
- Difficulty using and understanding language
- Difficulty relating to people, objects, and events (Lack of eye contact, Pointing behavior, Lack of facial responses)
- Unusual play with toys and other objects
- Paranoia, a characteristic form of social anxiety, Derealization, Transient psychosis, and unconventional beliefs if environment or routine are changed without notice
- Repetitive body movements or behavior patterns, such as hand flapping, hair twirling, foot tapping, or more complex movements[citation needed]
- Difficulty regulating behaviors and emotions, which may result in temper tantrums, anxiety, and aggression
- Emotional breakdowns
- Delusional or unconventional perception of the world
- Maladaptive daydreaming
- Mirrored-Self Misidentification – the delusion that the individual in the mirror that you are, is a child, even though you are an older teen or an adult
- An association between high-functioning autism (HFA) and criminal behavior is not completely characterized.
Entities
- Aphasia
- Psychosis
- Behaviural change