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Adult High Functioning Autism & Asperger’s Diagnosis Service

Autistic Spectrum Condition:

Autistic Spectrum Condition (ASC) is a lifelong neurodevelopmental condition, the core features of which are persistent difficulties in social interaction and communication and the presence of stereotypic (rigid and repetitive) behaviours, resistance to change or restricted interests.

The way that ASC is expressed in individual people differs at different stages of life, in response to interventions, and with the presence of coexisting conditions such as learning disabilities (also called 'intellectual disabilities'). 

People with ASC also commonly experience difficulty with cognitive and behavioural flexibility, altered sensory sensitivity, sensory processing difficulties and emotional regulation difficulties. The features of ASC may range from mild to severe and may fluctuate over time or in response to changes in circumstances. 

Taken from CG142 Autism: recognition, referral, diagnosis and management of adults on the autism spectrum (NICE, June 2012)


Aims and objectives of the service

To provide assessment, diagnosis, and time-limited post diagnostic support for adults living on the Isle of Wight, with identified traits that may be consistent with Autistic Spectrum Condition.

The service will provide:

  1. a clear diagnostic pathway, including referral and screening options
  2. consultation to other specialist health providers (e.g. GPs and Mental Health Teams)
  3. signposting to appropriate support services for clients and carers (e.g. Local Authority and Voluntary Sector)
  4. advice and information to individuals, carers/relatives, and other relevant services

Referral Criteria

  • Referrals can be made by registered healthcare professionals (e.g. GPs, psychologists, psychiatrists). Each person referred will receive an initial assessment via screening questionnaires, which may then lead on to a full assessment.
  • Relatives or carers can be involved in the assessment process, with the permission of the referred individual.

Population served

Isle of Wight residents aged 18 years or older. Individuals with severe, complex or forensic co-morbidities will be assessed via the specialist commissioning pathway.

Days / hours of operation

The service is based at the Arthur Webster Clinic in Shanklin. It provides its services during normal office hours - 9.00 am to 4.30 pm, Monday to Friday (closed on Bank Holidays). 

Assessment will primarily take place in clinic however the service can be delivered in a variety of settings. This will include:

  • Service user's place of residence
  • Community venues relevant to an individual
  • Other provider's offices (where appropriate for training, consultation and support)


pdfAutism leaflet (0.67 MB)

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