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Table 3. 

A Comparison between P1 and N1 Informed Analysis of Responses to Target Stimuli for All Conditions

Region (Harvard-Oxford, Maximum Probability)
MNI Coordinates of Local Maxima
Maximum Z Value
Overall Cluster Size (# Voxels)
x
y
z
Passive P1 > N1 
SMA (L) −10 −8 56 3.9 413 
Precentral gyrus (L) −4 −20 62 3.2  
 
Count P1 > N1 
SMA (R) 52 4.1 780 
Precentral gyrus (R) −14 58 4.4  
Postcentral gyrus (R) 28 −36 48 3.9 522 
Superior parietal lobule (R) 22 −42 68 3.5  
Middle frontal gyrus (R) 36 64 3.5 384 
Superior frontal gyrus (R) −52 66 3.4  
Superior frontal gyrus (L) 30 70 3.8  
Precuneus (R) −22 −4 70 3.5 309 
Inferior frontal gyrus (L) −58 18 24 3.1 294 
Lateral occipital cortex (L) −58 −60 40 3.9 278 
 
Respond N1 > P1 
Lateral occipital cortex (L) −44 −60 54 4.2 455 
Angular gyrus (L) −50 −52 54 3.7  
Superior parietal lobule (L) −36 −52 38 3.23  
Middle frontal gyrus (L) −30 30 34 5.6 258 
Region (Harvard-Oxford, Maximum Probability)
MNI Coordinates of Local Maxima
Maximum Z Value
Overall Cluster Size (# Voxels)
x
y
z
Passive P1 > N1 
SMA (L) −10 −8 56 3.9 413 
Precentral gyrus (L) −4 −20 62 3.2  
 
Count P1 > N1 
SMA (R) 52 4.1 780 
Precentral gyrus (R) −14 58 4.4  
Postcentral gyrus (R) 28 −36 48 3.9 522 
Superior parietal lobule (R) 22 −42 68 3.5  
Middle frontal gyrus (R) 36 64 3.5 384 
Superior frontal gyrus (R) −52 66 3.4  
Superior frontal gyrus (L) 30 70 3.8  
Precuneus (R) −22 −4 70 3.5 309 
Inferior frontal gyrus (L) −58 18 24 3.1 294 
Lateral occipital cortex (L) −58 −60 40 3.9 278 
 
Respond N1 > P1 
Lateral occipital cortex (L) −44 −60 54 4.2 455 
Angular gyrus (L) −50 −52 54 3.7  
Superior parietal lobule (L) −36 −52 38 3.23  
Middle frontal gyrus (L) −30 30 34 5.6 258 

Cluster-corrected, z = 2.0, p = .05, n = 13. L = left, R = right.

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