Crowdsourced single-trial probes of visual working memory for irrelevant features

Hongsup Shin, Wei Ji Ma

Research output: Contribution to journalArticlepeer-review


We measured the precision with which an irrelevant feature of a relevant object is stored in visual short-term memory. In each experiment, 600 online subjects each completed 30 trials in which the same feature (orientation or color) was relevant, followed by a single surprise trial in which the other feature was relevant. Pooling data across all subjects, we find in a delayedestimation task but not in a change localization task that the irrelevant feature is retrieved, but with much lower precision than when the same feature is relevant: The irrelevant/relevant precision ratio was 3.8% for orientation and 20.4% for color.

Original languageEnglish (US)
Article number10
JournalJournal of vision
Issue number5
StatePublished - 2016


  • Delayed estimation
  • Object memory
  • Visual short-term memory
  • Visual working memory

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems


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