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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Neuroimage. 2016 Jul 12;141:108–119. doi: 10.1016/j.neuroimage.2016.07.028

Table 2.

Group-average (N = 25) central (Cz) ORN (top) and parietal (Pz) P400 amplitudes and peak latencies (bottom) of the hit-minus-miss difference waveforms, separately for the four tested stimulus conditions

Coherence 4 Coherence 6
ORN Duration 4 Duration 5 Duration 3 Duration 4
Mean amplitude at Cz (μV) −0.84 −2.57 −0.02 −2.03
SD 1.89 2.24 1.71 1.71
t(24) −2.17* −5.62*** −0.04 −5.82***
Amplitude measurement window (ms) 200−300 240−340 200−300 200−300
P400
Mean amplitude at Pz (μV) 4.10 4.67 3.51 5.40
SD 2.87 3.89 3.47 3.81
t(24) 6.99*** 5.88*** 4.96*** 6.95***
Amplitude measurement window (ms) 552–652 500–600 472–572 500–600

Notes: Significant differences from zero are marked with asterisks (* p<.05,***p<.001); due to the low number of Coherence-4/Duration-3 hit trials and Coherence-6/Duration-5 miss trials (<30% of all trials), the ERP measures are not reliable for these conditions.