Behavioural Excesses and Deficits Associated with Dementia in Adults who have Down Syndrome

Christopher Oliver, S Kalsy, S McQuillan, S Hall

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)
453 Downloads (Pure)


Background Informant-based assessment of behavioural change and difference in dementia in Down syndrome can aid diagnosis and inform service delivery. To date few studies have examined the impact of different types of behavioural change. Methods The Assessment for Adults with Developmental Disabilities (AADS), developed for this study, assesses behavioural excesses (11 items) and deficits (17 items) associated with dementia. Inter-informant reliability, internal consistency and concurrent validity were evaluated and found to be robust. Results A comparison of the AADS subscale scores for three groups (n = 12) of adults with Down syndrome demonstrated more frequent deficits and excesses and greater management difficulty and effects on the individual in a dementia group than age comparable and younger groups. Conclusion The AADS is a promising dementia specific measure for people with intellectual disability. Further research should evaluate change as dementia progresses and the nature of management difficulty and effects on the individual.
Original languageEnglish
Pages (from-to)208-216
Number of pages9
JournalJournal of Applied Research in Intellectual Disabilities
Issue number3
Publication statusPublished - 1 May 2011


  • Down syndrome
  • Alzheimer's disease
  • dementia
  • ageing
  • adaptive behaviour
  • assessment


Dive into the research topics of 'Behavioural Excesses and Deficits Associated with Dementia in Adults who have Down Syndrome'. Together they form a unique fingerprint.

Cite this