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Spectrum Learning


Asia’s First Neurofeedback Centre (Established 1995)


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>Tel: +65-68349476       Email: Jess@spectrumlearning.com.sg


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Autism vs Autistic Spectrum Disorder

Autism is a specific disorder in Pervasive Developmental Disorder (PDD). PDD refers to a group of disorders which includes the Autistic Spectrum Disorder (ASD), Rett Syndrome and Childhood Disintegrative Disorder (CDD).

Autistic Spectrum Disorder (ASD) is a subgroup of disorders which includes autism disorder, Apserger’s Syndrome and Pervasive Developmental Disorder not otherwise specified (PDD-NOS).

Some call Autism disorder as Autistic Spectrum Disorder (ASD). However, autistic spectrum disorder (ASD) is a general term for a group of complex disorders of brain development, which includes Asperger syndrome and pervasive developmental disorder not otherwise specified (PDD-NOS).

Symptoms and Diagnosis of Autism

The ASD group of disorders are characterized, in varying degrees, by difficulties in social interaction, verbal and nonverbal communication and repetitive behaviors. ASD can be associated with intellectual disability, difficulties in motor coordination and attention and physical health issues such as sleep and gastrointestinal disturbances. Some persons with ASD excel in visual skills, music, math and art.

Autism appears to have its roots in very early brain development. However, the most obvious signs of autism and symptoms of autism tend to emerge between 2 and 3 years of age.

Autism is diagnosed based on behavioral symptoms. The diagnostic criteria for Asperger Syndrome according to the DSM IV:

Symptoms for autism is a total of six or more symptoms items from lists (1), (2), and (3), with at least two from (1) and one from (2) and (3).

  1. Impairment in social interactions as demonstrated by at least two of the following:

  1. Impairment in communication as shown by at least one of the following:

  1. Repetitive or stereotyped behaviors or interests, displayed by at least one of the following:


Autism Symptoms and Diagnosis

Finding the Causes

Most clinicians do not bother about the causes as diagnosis is based on behavioral symptoms …   

At Spectrum Learning, we have been investigating the possible causes …

Test and Assessments Interventions


Will my child outgrow Autism?

Unfortunately not if their condition is left untreated.

Therapy and training can help people with Autism to overcome the limitations imposed by the condition.

At Spectrum Learning, we have helped many Autistic children to overcome their limitations!

- Testimonials

Related Links

  1. PDD
  2. Apserger’s Syndrome
  3. PDD-NOS
  4. Rett Syndrome
  5. Childhood Disintegrative Disorder (CDD)

Autistic Spectrum Disorder (ASD)


Symptoms and Diagnosis

Symptoms & Diagnosis