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Table 6 Comparison of the N400, LPC, and anterior negativity mean amplitude in the H-SLI and TD groups

From: Atypical audiovisual word processing in school-age children with a history of specific language impairment: an event-related potential study

ERP component

Degrees of freedom

F

p

η p 2

Direction

N400

 Group

1,36

1.863

0.181

  

 Congruency

1,36

23.356

<0.001

0.393

incon > con

 Group × congruency

1,36

4.635

0.038

0.114

 

  Group in congruent

1,36

<1

   

   Group in incongruent

1,36

4.517

0.04

0.111

TD > H-SLI

  Anterior to posterior distribution

1,36

36.229

<0.001

0.502

CP,P > PO,O

LPC

 Group

1,36

<1

   

 Congruency

1,36

54.172

<0.001

0.601

con > incon

 Group × congruency

1,36

<1

   

 Anterior to posterior distribution

1,36

3.742

0.061

0.094

PO, O > CP, P

Anterior negativity

 Group

1,36

4.43

0.042

0.11

H-SLI > TD

 Congruency

1,36

3.236

0.08

0.082

 

 Group × congruency

1,36

<1

   

 Group × anterior to posterior distribution × site

1,36

3.837

0.058

0.096

 

   FP sites

1,36

5.913

0.02

0.141

H-SLI > TD

   AF sites

1,36

6.803

0.013

0.159

H-SLI > TD

  F sites

1,36

3.358

0.075

0.085

H-SLI > TD

  FC sites

1,36

1.417

0.242

  

 Congruency × anterior to posterior distribution

1,36

16.167

<0.001

0.31

 

   F and FC sites

1,37

7.276

0.01

0.164

incon > con

  FP and AF sites

1,37

<1

   
  1. Significant results are shown in italics. AF anterior frontal, CP centro-parietal, F frontal, FC fronto-central, FP frontal polar, P parietal, PO parietal-occipital, O occipital; con congruent trials, incon incongruent trials