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Table 2. 

Mean Amplitudes (μV) of the Difference Waves within the 200–250 msec Time Window at 13 Posterior Electrodes (Standard Errors in Parentheses) and Summary of Two-tailed Paired t Tests (All dfs were 11)

Electrode
Difference Wave
First Deviant Minus
Second Deviant Minus
First Standard Minus
Second Standard Minus
Standard
Control
Standard
Control
Standard
Control
Standard
Control
T5 −1.83 (0.31)** −1.22 (0.25)** −1.50 (0.42)** −0.90 (0.52) −1.29 (0.26)** −0.69 (0.24)* −0.08 (0.46) 0.52 (0.52) 
P3 −1.45 (0.37)** −0.97 (0.32)* −1.65 (0.50)** −1.17 (0.56) −1.10 (0.34)** −0.62 (0.28)* −0.13 (0.42) 0.35 (0.49) 
Pz −1.22 (0.39)** −0.85 (0.29)* −1.21 (0.55) −0.83 (0.60) −0.79 (0.39) −0.42 (0.33) −0.17 (0.48) 0.54 (0.52) 
P4 −1.67 (0.35)** −1.24 (0.25)** −1.39 (0.56)* −0.97 (0.63) −0.61 (0.40) −0.19 (0.37) 0.26 (0.49) 0.69 (0.54) 
T6 −2.27 (0.41)** −1.59 (0.26)** −1.38 (0.55)* −0.70 (0.64) −1.06 (0.37)* −0.38 (0.31) −0.04 (0.44) 0.64 (0.50) 
PO7 −1.97 (0.37)** −1.47 (0.32)** −1.88 (0.50)** −1.38 (0.56)* −1.30 (0.30)** −0.80 (0.23)** −0.18 (0.44) 0.32 (0.51) 
PO3 −1.62 (0.36)** −1.18 (0.33)** −1.87 (0.53)** −1.43 (0.56)* −1.15 (0.39)* −0.71 (0.26)* −0.03 (0.45) 0.41 (0.50) 
POz −1.47 (0.35)** −1.03 (0.26)** −1.50 (0.53)* −1.06 (0.57) −0.90 (0.44) −0.46 (0.33) 0.14 (0.48) 0.58 (0.50) 
PO4 −1.65 (0.35)** −1.23 (0.24)** −1.60 (0.59)* −1.18 (0.61) −0.74 (0.44) −0.32 (0.36) 0.13 (0.48) 0.55 (0.53) 
PO8 −2.07 (0.39)** −1.58 (0.22)** −1.77 (0.56)** −1.29 (0.64) −0.79 (0.42) −0.31 (0.33) 0.18 (0.48) 0.66 (0.52) 
O1 −1.82 (0.39)** −1.39 (0.32)** −1.84 (0.55)** −1.41 (0.58)* −1.10 (0.35)** −0.67 (0.21)** −0.09 (0.42) 0.33 (0.48) 
Oz −1.81 (0.34)** −1.29 (0.25)** −1.63 (0.54)* −1.11 (0.60) −1.07 (0.40)* −0.55 (0.30) −0.05 (0.46) 0.47 (0.50) 
O2 −1.95 (0.36)** −1.39 (0.22)** −1.81 (0.61)* −1.24 (0.61) −0.87 (0.45) −0.31 (0.33) 0.18 (0.48) 0.74 (0.50) 
Electrode
Difference Wave
First Deviant Minus
Second Deviant Minus
First Standard Minus
Second Standard Minus
Standard
Control
Standard
Control
Standard
Control
Standard
Control
T5 −1.83 (0.31)** −1.22 (0.25)** −1.50 (0.42)** −0.90 (0.52) −1.29 (0.26)** −0.69 (0.24)* −0.08 (0.46) 0.52 (0.52) 
P3 −1.45 (0.37)** −0.97 (0.32)* −1.65 (0.50)** −1.17 (0.56) −1.10 (0.34)** −0.62 (0.28)* −0.13 (0.42) 0.35 (0.49) 
Pz −1.22 (0.39)** −0.85 (0.29)* −1.21 (0.55) −0.83 (0.60) −0.79 (0.39) −0.42 (0.33) −0.17 (0.48) 0.54 (0.52) 
P4 −1.67 (0.35)** −1.24 (0.25)** −1.39 (0.56)* −0.97 (0.63) −0.61 (0.40) −0.19 (0.37) 0.26 (0.49) 0.69 (0.54) 
T6 −2.27 (0.41)** −1.59 (0.26)** −1.38 (0.55)* −0.70 (0.64) −1.06 (0.37)* −0.38 (0.31) −0.04 (0.44) 0.64 (0.50) 
PO7 −1.97 (0.37)** −1.47 (0.32)** −1.88 (0.50)** −1.38 (0.56)* −1.30 (0.30)** −0.80 (0.23)** −0.18 (0.44) 0.32 (0.51) 
PO3 −1.62 (0.36)** −1.18 (0.33)** −1.87 (0.53)** −1.43 (0.56)* −1.15 (0.39)* −0.71 (0.26)* −0.03 (0.45) 0.41 (0.50) 
POz −1.47 (0.35)** −1.03 (0.26)** −1.50 (0.53)* −1.06 (0.57) −0.90 (0.44) −0.46 (0.33) 0.14 (0.48) 0.58 (0.50) 
PO4 −1.65 (0.35)** −1.23 (0.24)** −1.60 (0.59)* −1.18 (0.61) −0.74 (0.44) −0.32 (0.36) 0.13 (0.48) 0.55 (0.53) 
PO8 −2.07 (0.39)** −1.58 (0.22)** −1.77 (0.56)** −1.29 (0.64) −0.79 (0.42) −0.31 (0.33) 0.18 (0.48) 0.66 (0.52) 
O1 −1.82 (0.39)** −1.39 (0.32)** −1.84 (0.55)** −1.41 (0.58)* −1.10 (0.35)** −0.67 (0.21)** −0.09 (0.42) 0.33 (0.48) 
Oz −1.81 (0.34)** −1.29 (0.25)** −1.63 (0.54)* −1.11 (0.60) −1.07 (0.40)* −0.55 (0.30) −0.05 (0.46) 0.47 (0.50) 
O2 −1.95 (0.36)** −1.39 (0.22)** −1.81 (0.61)* −1.24 (0.61) −0.87 (0.45) −0.31 (0.33) 0.18 (0.48) 0.74 (0.50) 

*p < .05.

**p < .01.

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