Evidence of gradual loss of precision for simple features and complex objects in visual working memory.

ABSTRACT: Previous studies have suggested that people can maintain prioritized items in visual working memory for many seconds, with negligible loss of information over time. Such findings imply that working memory representations are robust to the potential contaminating effects of internal noise. However, once visual information is encoded into working memory, one might expect it to inevitably begin degrading over time, as this actively maintained information is no longer tethered to the original perceptual input. Here, we examined this issue by evaluating working memory for single central presentations of an oriented grating, color patch, or face stimulus, across a range of delay periods (1, 3, 6, or 12 s). We applied a mixture-model analysis to distinguish changes in memory precision over time f

SUBMITTER: Rademaker RL 

PROVIDER: S-EPMC5975117 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature