The Dementias

  • Nages Nagaratnam
  • Kujan Nagaratnam
  • Gary Cheuk
Reference work entry


DSM-5 has replaced the term “dementia” with “major neurocognitive disorder (NCD) or mild neurocognitive disorder” but accepts “dementia” as an agreeable alternative. The purpose of this change is to lessen the stigmatization associated with the word “dementia” toward elderly individuals and to bring the diagnostic guidelines in step with the present-day practice. The DSM-5 details six cognitive domains, namely, attention, executive function, learning and memory, language, perceptual-motor function, and social cognition. It is estimated that 2% and 10% of dementia begin before the age of 65, according to the World Alzheimer Report and is referred to as early-onset dementia.


Dementia Alzheimer disease Major neurocognitive disorder Early-onset dementia Late-onset dementia 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Nages Nagaratnam
    • 1
  • Kujan Nagaratnam
    • 1
  • Gary Cheuk
    • 2
  1. 1.The University of SydneyWestmead Clinical SchoolWestmeadAustralia
  2. 2.Rehabilitation and Aged Care ServiceBlacktown-Mt Druitt HospitalMount DruittAustralia

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