Distinguishing attentional gain and tuning in young and older adults

@article{Schmitz2014DistinguishingAG,
  title={Distinguishing attentional gain and tuning in young and older adults},
  author={Taylor W. Schmitz and Matthew L. Dixon and Adam K. Anderson and Eve De Rosa},
  journal={Neurobiology of Aging},
  year={2014},
  volume={35},
  pages={2514-2525}
}
Here we examined with functional magnetic resonance imaging (fMRI) whether advanced age affects 2 mechanisms of attention that are widely thought to enhance signal processing in the sensory neocortex: gain and tuning. Healthy young and older adults discriminated faces under varying levels of object competition while fMRI was acquired. In young adults, cortical response magnitude to attended faces was maintained despite increasing competition, consistent with gain. Cortical response selectivity… CONTINUE READING
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