Retts: Development of several specific deficits following a period of normal functioning after birth. Typically associated with severe or profound mental retardation. Normal head circumference at birth Deceleration of head growth between ages 5 and 48 months. Loss of purposeful hand skills. CDD: Marked regression in multiple areas of functioning following a period of at least 2 years of apparently normal development. After the first 2 years of life (but before age 10 years), the child has a clinically significant loss of previously acquired skills in at least two of the following areas: Expressive or receptive language, social skills or adaptive behavior, bowel or bladder control, play, or motor skills.
Asperger’s Disorder Simon Bignell – Module Leader Lecture 4 Spring 2010 (6PS048 & 6PS052)
“… ranges from the most profoundly physically and mentally retarded person ... to the most able, highly intelligent person with social impairment in its subtlest form as his only disability. It overlaps with learning disabilities and shades into eccentric normality.”
The triad of impairment summarises the difficulties of the Autistic child but the actual manifestation of these can vary. Asperger’s may be a subtler form of ASD.
Restricted, repetitive and stereotyped patterns of behaviour. Impairment in social interaction . Impairment in verbal and non verbal communication. Peculiarities in verbal and non verbal communication. Wing and Gould’s triad of impairments
C. The disturbance causes clinically significant impairment in social, occupational, or other important areas of functioning.
D. There is no clinically significant general delay in language (e.g., single words used by age 2 years, communicative phrases used by age 3 years).
E. There is no clinically significant delay in cognitive development or in the development of age-appropriate self-help skills, adaptive behavior (other than in social interaction), and curiosity about the environment in childhood.
F. Criteria are not met for another specific Pervasive Developmental Disorder or Schizophrenia.
Repeated and unrelenting beliefs, impulses, or images cause marked anxiety or distress.
The person endeavors to ignore or restrain such thoughts, impulses, or images, or to counterbalance them with some other thought or action that the person feels compelled to complete in response to an obsession, or concurrent to rules that must be applied inflexibly.