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Diseases » Pervasive developmental disorders » Symptoms

Symptoms of Pervasive developmental disorders



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Symptoms of Pervasive developmental disorders

The list of signs and symptoms mentioned in various sources for Pervasive developmental disorders includes the 8 symptoms listed below:

Research symptoms & diagnosis of Pervasive developmental disorders:

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Do I have Pervasive developmental disorders?

Pervasive developmental disorders: Medical Mistakes

Pervasive developmental disorders: Undiagnosed Conditions

Diseases that may be commonly undiagnosed in related medical areas:

Home Diagnostic Testing

Home medical tests related to Pervasive developmental disorders:

Wrongly Diagnosed with Pervasive developmental disorders?

The list of other diseases or medical conditions that may be on the differential diagnosis list of alternative diagnoses for Pervasive developmental disorders includes:

See the full list of 7 alternative diagnoses for Pervasive developmental disorders

Pervasive developmental disorders: Research Doctors & Specialists

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More about symptoms of Pervasive developmental disorders:

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Other Possible Causes of these Symptoms

Click on any of the symptoms below to see a full list of other causes including diseases, medical conditions, toxins, drug interactions, or drug side effect causes of that symptom.

Medical Books Online about Pervasive developmental disorders

Medical Books Excerpts Excerpts of published medical book chapters related to Pervasive developmental disorders are available from published medical books for more detailed information about Pervasive developmental disorders.

Medical Books Excerpts

Autistic disorder

  • "Professional Guide to Diseases (Eighth Edition)" (2005)

Autistic disorder

  • "Handbook of Diseases" (2003)

Autism/Pervasive Developmental Disorder (PDD) Spectrum

  • "The 5-Minute Pediatric Consult" (2008)

Developmental Disabilities

  • "The 5-Minute Pediatric Consult" (2008)

Copyright notice for book excerpts: Copyright © 2008 Lippincott Williams & Wilkins. All rights reserved.

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Symptoms of Pervasive developmental disorders: Online Medical Books

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Autistic disorder: Signs and symptoms
(Professional Guide to Diseases (Eighth Edition))

A primary characteristic of infantile autistic disorder is unresponsiveness to people. Infants with this disorder won’t cuddle, avoid eye contact and facial expressions, and are indifferent to affection and physical contact. Parents may report that the child becomes rigid or flaccid when held, cries when touched, and shows little or no interest in human contact.

As the infant grows older, his smiling response is delayed or absent. He doesn’t lift his arms in anticipation of being picked up or form an attachment to a specific caregiver. Furthermore, he doesn’t show the anxiety about strangers that’s typical in the 8-month-old infant.

A child who’s autistic fails to learn the usual socialization games (peek-a-boo, pat-a-cake, or bye-bye). He’s likely to relate to others only to fill a physical need and then without eye contact or speech. The end result may be mutual withdrawal between parents and child.

Severe language impairment and lack of imaginative play are characteristic. The child may be mute or may use immature speech patterns. For example, he may use a single word to express a series of activities; he may say “ground” when referring to any step in using a playground slide.

His speech commonly shows echolalia (meaningless repetition of words or phrases addressed to him) and pronoun reversal (“you go walk” when he means, “I want to go for a walk”). When answering a question, he may simply repeat the question to mean yes and remain silent to mean no.

He shows little imagination, seldom acting out adult roles or engaging in fantasy play. In fact, he may insist on lining up an exact number of toys in the same manner over and over or repetitively mimic the actions of someone else.

A child who’s autistic shows characteristically bizarre behavior patterns, such as screaming fits, rituals, rhythmic rocking, arm flapping, crying without tears, and disturbed sleeping and eating patterns. His behavior may be self-destructive (hand biting, eye gouging, hair pulling, or head banging) or self-stimulating (playing with his own saliva, feces, and urine). His bizarre responses to his environment include an extreme compulsion for sameness.

In response to sensory stimuli, he may underreact or overreact and he may ignore objects — dropping those he’s given or not looking at them — or he may become excessively absorbed in them — continually watching the objects or the movement of his own fingers over the objects. He commonly responds to stimuli by head banging, rocking, whirling, and hand flapping. He tends to avoid using sight and hearing to interact with the environment.

A child who’s autistic may exhibit additional behavioral abnormalities, such as:

❑ cognitive impairment (most have an IQ of 35 to 49)

❑ eating, drinking, and sleeping problems, for example, limiting his diet to just a few foods, excessive drinking, or repeatedly waking during the night and rocking

❑ mood disorders, including labile mood, giggling or crying without reason, lack of emotional responses, no fear of real danger but excessive fear of harmless objects, and generalized anxiety.

» READ BOOK EXCERPT ONLINE »

Source: Professional Guide to Diseases (Eighth Edition), 2005

Autistic disorder: Signs and symptoms
(Handbook of Diseases)

Typical features of infantile autistic disorder include unresponsiveness to people, language impairment, lack of imaginative play, bizarre behavior patterns, and abnormal reactions to sensory stimuli.

Unresponsiveness to people

Infants with this disorder avoid eye contact, have little or no facial expression, and are indifferent to affection and physical contact. Parents may report that the child becomes rigid or flaccid when held, cries when touched, and shows little or no interest in human contact.

As the infant grows older, his smiling response is delayed or absent. He doesn’t lift his arms in anticipation of being picked up or form an attachment to a specific caregiver. Nor does he show the anxiety about strangers that’s typical in the 8-month-old infant.

The autistic child fails to learn the usual socialization games (peek-a-boo, pat-a-cake, or bye-bye). He’s likely to relate to others only to fill a physical need and then without eye contact or speech. The end result may be mutual withdrawal between parents and child.

Severe language impairment

The child may be mute or may use immature speech patterns. For example, he may use a single word to express a series of activities; he may say “ground” when referring to any step in using a playground slide.

His speech commonly shows echolalia (meaningless repetition of words or phrases addressed to him) and pronoun reversal (“you go walk” when he means “I want to go for a walk”). When answering a question, he may simply repeat the question to mean yes and remain silent to mean no.

Lack of imaginative play

The child shows little imagination, seldom acting out adult roles or engaging in fantasy play. In fact, he may insist on lining up an exact number of toys in the same manner over and over or repetitively mimic the actions of someone else.

Bizarre behavior

The autistic child shows characteristically bizarre behavior patterns, such as screaming fits, rituals, rhythmic rocking, arm flapping, crying without tears, and disturbed sleeping and eating patterns. His behavior may be self-destructive (hand biting, eye gouging, hair pulling, or head banging) or self-stimulating (playing with his own saliva, stool, and urine).

His bizarre responses to his environment include an extreme compulsion for sameness.

Abnormal response
to sensory stimuli

The autistic child may underreact or overreact to sensory stimuli; he may ignore objects — dropping those he’s given or not looking at them — or he may become excessively absorbed in them — continually watching the objects or the movement of his own fingers over the objects. He commonly responds to stimuli by head banging, rocking, whirling, and hand flapping. He tends to avoid using sight and hearing to interact with the environment.

Other behavioral abnormalities

Other characteristics of an autistic child include:

  • cognitive impairment (most have a measured IQ of 35 to 49; assessment of the patient’s true intelligence level is difficult because of poor social and verbal skills)
  • eating, drinking, and sleeping problems — for example, limiting his diet to just a few foods, excessive drinking, or repeatedly waking during the night and rocking
  • mood disorders, including labile mood, giggling or crying without reason, lack of emotional responses, no fear of real danger but excessive fear of harmless objects, and generalized anxiety.

    » READ BOOK EXCERPT ONLINE »

    Source: Handbook of Diseases, 2003

    Autism/Pervasive Developmental Disorder (PDD) Spectrum: Autism/Pervasive Developmental Disorder Spectrum - signs & symptoms
    (The 5-Minute Pediatric Consult)

    • Delays/impairments in language development:
      • Rare cases present with “acquired epileptic aphasia” (paroxysmal electroencephalogram in sleep)
    • Marked inability to initiate and sustain conversation (when speech is present)
    • Cognitive delays
    • Impairment in eye contact, facial expression, nonverbal social behaviors
    • Impaired social interactions
    • Impaired peer relationships
    • Stereotypies (e.g., rocking, hand flapping)
    • Restricted range of interests/activities
    • Attachment to unusual objects, fascination with parts of objects
    • Behavioral rigidity, distress with changes in routine
    • Lack of imaginary play appropriate to developmental level
    • In Rett disorder: Scoliosis, breathing problems, seizures, motor problems

    » READ BOOK EXCERPT ONLINE »

    Source: The 5-Minute Pediatric Consult, 2008

    Article Excerpts About Symptoms of Pervasive developmental disorders:

    Symptoms may include communication problems such as using and understanding language; difficulty relating to people, objects, and events; unusual play with toys and other objects; difficulty with changes in routine or familiar surroundings, and repetitive body movements or behavior patterns. (Source: excerpt from NINDS Pervasive Developmental Disorders Information Page: NINDS)

    Medical articles and books on symptoms:

    These general reference articles may be of interest in relation to medical signs and symptoms of disease in general:

    Full list of premium articles on symptoms and diagnosis

    About signs and symptoms of Pervasive developmental disorders:

    The symptom information on this page attempts to provide a list of some possible signs and symptoms of Pervasive developmental disorders. This signs and symptoms information for Pervasive developmental disorders has been gathered from various sources, may not be fully accurate, and may not be the full list of Pervasive developmental disorders signs or Pervasive developmental disorders symptoms. Furthermore, signs and symptoms of Pervasive developmental disorders may vary on an individual basis for each patient. Only your doctor can provide adequate diagnosis of any signs or symptoms and whether they are indeed Pervasive developmental disorders symptoms.


     » Next page: Diagnostic Tests for Pervasive developmental disorders

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