Intended for healthcare professionals

Letters Onset of cognitive decline

Intellectual functions may be slower but no worse with age

BMJ 2012; 344 doi: (Published 14 February 2012) Cite this as: BMJ 2012;344:e1044
  1. Rosaleen A McCarthy, consultant neuropsychologist1
  1. 1Southampton University Hospital Trust, Department of Neuropsychology, Wessex Neurological Centre, Southampton General Hospital, Southampton SO16 6YD, UK
  1. rosaleen.mccarthy{at}

The research article by Singh-Manoux and colleagues has widely been reported as providing evidence for rapid decline in cognitive ability from age 45 years.1 However, all tasks were administered with very tight time limits (and often required writing responses), except for the vocabulary test, which showed no …

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