Table 1. Instantaneous amplitudes (IA), averaged within 150 ms time intervals.

Data are means (standard error) of the IA in microvolts for the Nontarget-without-Distractor and corrected Nontarget-with-Distractor conditions. Significant differences between conditions are indicated by underlining (paired t-tests, all p < 0.05).

A. Means for Channel Pz
	Time Interval relative to Nontarget onset (ms)
Condition	−150 to 0	0 to 150	150 to 300	300 to 450	450 to 600	600 to 750
Nontarget without Distractor	5.73 (0.60)	5.71 (0.60)	5.75 (0.62)	5.80 (0.63)	5.81 (0.64)	5.84 (0.64)
Corrected Nontarget with Distractor	5.69 (0.61)	5.26 (0.63)	4.78 (0.59)	5.13 (0.55)	5.44 (0.58)	5.67 (0.59)

B. Means for Channels POz, O1, and O2
	Time Interval relative to Nontarget onset (ms)
Condition	−150 to 0	0 to 150	150 to 300	300 to 450	450 to 600	600 to 750
Nontarget without Distractor	4.66 (0.55)	4.64 (0.54)	4.62 (0.54)	4.61 (0.54)	4.62 (0.55)	4.66 (0.55)
Corrected Nontarget with Distractor	4.62 (0.55)	4.15 (0.56)	3.71 (0.51)	4.06 (0.46)	4.32 (0.47)	4.55 (0.50)