Table 1.

Experimental conditions.

#	Condition name	Goal	Prior stimulus and task features
			Biased feature	Discriminated feature (relevant to test)	Circle color	Response keys
1	Baseline (A and B)	Test serial dependence of location discrimination	Location	Location (✔)	White	Left/right
2	Color invariant	Test serial dependence when prior and test stimuli differ in an undiscriminated physical attribute (color)	Location	Location (✔)	Green/purple	Left/right
3	Response invariant	Test serial dependence when discriminations for prior and test stimuli are reported using different responses	Location	Location (✔)	Green/purple	Up/down
4	Response inhibition	Test whether response reporting is necessary for serial dependence to occur	Location	Location (✔)	White	None
5	Alternative feature	Test serial dependence on prior actions that report irrelevant choices	Color	Color (✘)	Green/purple	Left/right
6	Undiscriminated	Test serial dependence on low-level sensory information	Location	Color (✘)	Green/purple	Left/right

✔Indicates that the priors task was relevant to the test task (both were location discrimination).

✘Indicates that the priors task (color discrimination) was irrelevant to the test task (location discrimination).