One of the most well-established age-related changes in neural activity disappears after controlling for visual acuity.

ABSTRACT: Numerous studies using a variety of imaging techniques have reported age-related differences in neural activity while subjects carry out cognitive tasks. Surprisingly little attention has been paid to the potential impact of age-associated changes in sensory acuity on these findings. Studies in the visual modality frequently report that their subjects had "normal or corrected- to-normal vision." However, in most cases, there is no indication that visual acuity was actually measured, and it is likely that the investigators relied largely on self-reported visual status of subjects, which is often inaccurate. We investigated whether differences in visual acuity influence one of the most commonly observed findings in the event-related potentials literature on cognitive aging, a reduction in po

SUBMITTER: Porto FHG 

PROVIDER: S-EPMC4808353 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature