Table 1.

N1 alerting and orienting effects for each scalp region (Values are described as mean ± SD).

Orienting Effects
	Center cue	Spatial cue	t, p
Occipital	−2.71 ± 2.27	−3.45 ± 2.08	2.83, 0.01
Parietal	−2.05 ± 2.19	−2.82 ± 1.93	2.76, 0.01
t, p	−3.09, 0.004	−2.42, 0.02
Alerting Effects
	No cue	Double cue	t, p
Occipital	−1.81 ± 2.33	−3.63 ± 2.38	5.33, <0.001
Parietal	−0.83 ± 1.99	−3.61 ± 2.25	9.89, <0.001
t, p	−5.40, <0.001	−0.013, 0.90