Within-person trial-to-trial variability precedes and predicts cognitive decline in old and very old age: longitudinal data from the Berlin Aging Study.

@article{Lvdn2007WithinpersonTV,
  title={Within-person trial-to-trial variability precedes and predicts cognitive decline in old and very old age: longitudinal data from the Berlin Aging Study.},
  author={Martin L{\"o}vd{\'e}n and Shu-Chen Li and Yee Lee Shing and Ulman Lindenberger},
  journal={Neuropsychologia},
  year={2007},
  volume={45 12},
  pages={2827-38}
}
Neurocomputational modeling and empirical evidence suggest that losses in neuronal signaling fidelity cause senescent changes in behavior. We applied structural equation modeling to five-occasion 13-year longitudinal data from the Berlin Aging Study (n=447; age range at t1=70-102 years) to test whether trial-to-trial reaction time variability in perceptual speed (identical pictures) antecedes and signals longitudinal decline in levels of performance on perceptual speed (digit letter and… CONTINUE READING
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