Age-related top-down suppression deficit in the early stages of cortical visual memory processing.

@article{Gazzaley2008AgerelatedTS,
  title={Age-related top-down suppression deficit in the early stages of cortical visual memory processing.},
  author={Adam Gazzaley and Wesley Clapp and Jon Kelley and Kevin McEvoy and Robert T. Knight and Mark D'Esposito},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2008},
  volume={105 35},
  pages={13122-6}
}
In this study, electroencephalography (EEG) was used to examine the relationship between two leading hypotheses of cognitive aging, the inhibitory deficit and the processing speed hypothesis. We show that older adults exhibit a selective deficit in suppressing task-irrelevant information during visual working memory encoding, but only in the early stages of visual processing. Thus, the employment of suppressive mechanisms are not abolished with aging but rather delayed in time, revealing a… CONTINUE READING
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