Table 2.

Mean reaction times (in milliseconds) and percentage of errors by conditions of target presence (present vs. absent), distractor on trial n (Q vs. O), feature repetition relative to trial n-1 (repeated vs. switched) and set size (3 vs. 6) in Experiment 2.

	Distractor on trial n	Relative to trial n-1	Set size 3				Set size 6
Target absent	O	–	613	(24)	2.2%	(0.7%)	620	(23)	2.2%	(0.8%)
	Q	–	731	(22)	5.9%	(1.2%)	783	(26)	3.5%	(0.9%)
Target present	O	Switched	679	(35)	3.2%	(1.3%)	689	(26)	2.1%	(0.9%)
		Repeated	625	(27)	2.9%	(1.1%)	654	(30)	2.7%	(1.5%)
	Q	Switched	664	(30)	2.4%	(1.1%)	734	(26)	5.3%	(1.8%)
		Repeated	660	(33)	2.2%	(0.8%)	717	(30)	8.1%	(2.2%)

Standard errors are presented in parentheses.