Rationale behind this project

See here

Amonut of data (tentative plan)

400 millions responses / 500 thousand hours

Timeline 

To be determined

Experimental variables (tentative plan)

Variables manipulated before presentation

• Number of items pre-cued (if no pre-cue: 0)

Variables manipulated during presentation

• Set size

• Set heterogeneity (homogenous vs. heterogeneous: stimuli from different categories mixed randomly vs. 2 separate subsets of stimuli from different categories)

• Presentation duration (per item of the set)

• Sequential vs. simultaneous presentation

• Stimulus-mask delay (if no mask: infinity)

• Stimuli (single visual features; multi-feature combinations; familiar objects; scrambled familiar objects or artificial objects)

• Additional variables we get for free by random sampling of stimuli: Distance between the target and the non-target on the feature dimension, and on the cue dimension

Variables manipulated during maintenance

• Retention interval 

• Number of items retro-cued (if no retro-cue: 0)

• Delay between array offset and retro-cue onset (if no retro-cue: infinity)

• Secondary-task interference (none; decision on unrelated stimulus; decision on stimulus from the same feature space as the memory items)

Variables manipulated during test

• Kind of test (n-AFC; continuous reproduction = 360-AFC; local recognition = single-probe change detection; global recognition)

• Number of items tested

• Order of testing (if multiple items are tested: random; self-chosen; in case of sequential presentation: forward)

• Amount of test interference (e.g., for color reproduction: color wheel vs. grey wheel)

Leaders 

Coordinators (for all inquiries, please email Zhou Su) 

Other contributors