Are processing speed tasks biomarkers of cognitive aging?

  title={Are processing speed tasks biomarkers of cognitive aging?},
  author={Ian J. Deary and Wendy R. Johnson and John M. Starr},
  journal={Psychology and aging},
  volume={25 1},
We examined the association between 5 processing speed measures and general cognitive ability in a large (>900) sample of relatively healthy men and women at age 70. The processing speed tests were the Wechsler Digit Symbol-Coding and Symbol Search, simple reaction time, 4-choice reaction time, and inspection time. To inquire whether the processing speed tasks might be biomarkers of cognitive aging, we examined the attenuations in their associations with general cognitive ability after… CONTINUE READING

From This Paper

Figures, tables, and topics from this paper.
53 Citations
44 References
Similar Papers


Publications citing this paper.
Showing 1-10 of 53 extracted citations


Publications referenced by this paper.
Showing 1-10 of 44 references

Biomarkers of aging

  • D. K. Ingram
  • In, Schulz, R. (Ed.), The encyclopedia of aging…
  • 2006
Highly Influential
6 Excerpts

Looking down on human intelligence: from psychometrics to the brain

  • I. J. Deary
  • Oxford, UK: Oxford University Press.
  • 2000
Highly Influential
10 Excerpts

Manual for the Wechsler Adult Intelligence Scale-III

  • D. Wechsler
  • New York: Psychological Corporation.
  • 1997
Highly Influential
6 Excerpts

Reaction time parameters, intelligence, ageing, and death: the West of Scotland Twenty-07 study

  • I. J. Deary, G. Der
  • 2005
Highly Influential
5 Excerpts

Reaction time, age and cognitive ability: longitudinal findings from age 16 to 63 years in representative population samples

  • I. J. Deary, G. Der
  • Aging, Neuropsychology, and Cognition,
  • 2005
Highly Influential
5 Excerpts

A lifetime of intelligence: follow-up studies of the Scottish Mental Surveys of 1932 and 1947

  • I. J. Deary, L. J. Whalley, J. M. Starr
  • 2009

Similar Papers

Loading similar papers…