Neurocognitive markers of cognitive impairment: exploring the roles of speed and inconsistency.

@article{Dixon2007NeurocognitiveMO,
  title={Neurocognitive markers of cognitive impairment: exploring the roles of speed and inconsistency.},
  author={Roger A. Dixon and Douglas D. Garrett and Tanya L Lentz and Stuart W. S. MacDonald and Esther Strauss and David F. Hultsch},
  journal={Neuropsychology},
  year={2007},
  volume={21 3},
  pages={381-99}
}
A well-known challenge for research in the cognitive neuropsychology of aging is to distinguish between the deficits and changes associated with normal aging and those indicative of early cognitive impairment. In a series of 2 studies, the authors explored whether 2 neurocognitive markers, speed (mean level) and inconsistency (intraindividual variability), distinguished between age groups (64-73 and 74-90+ years) and cognitive status groups (nonimpaired, mildly impaired, and moderately impaired… CONTINUE READING