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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: Soc Neurosci. 2016 Feb 17;12(2):232–236. doi: 10.1080/17470919.2016.1144646

Table 1.

Mean P2 Amplitude Values (and SDs) at Frontal Electrodes as a Function of Condition

Electrodes
Target behaviors F7 F3 Fz F4 F8 Mean
Positive
 EC 2.19
(3.59)
2.31
(4.25)
2.32
(5.09)
1.85
(4.57)
1.36
(3.66)
2.01
(4.23)
 EV 1.56
(3.08)
1.97
(3.71)
2.22
(3.77)
1.07
(3.98)
1.85
(3.28)
1.74
(3.56)
Negative
 EC 1.62
(3.25)
2.31
(3.23)
2.61
(3.74)
2.48
(3.57)
1.89
(3.01)
2.18
(3.36)
 EV 3.62
(3.89)
3.92
(4.63)
3.99
(4.49)
3.48
(4.15)
3.29
(3.70)
3.66
(4.17)

Note. EC = expectancy-consistent; EV = expectancy-violating. Values in parentheses are standard deviations. Amplitude values represent the average voltage measured 200–330 ms following onset of the final (target) word in each sentence. Electrode position in the table from left to right mirrors electrode position on the scalp.