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Table 2 Statistical analysis of the P300 component in the CM- ROI.

From: P300 amplitude is insensitive to working memory load in schizophrenia

 

P300 amplitude (μV)

P300 latency (ms.)

 

mean (SD)

  

mean (SD)

  

Condition

HS

SZ

Dif

p value

HS

SZ

Dif

p value

0 back

3.17 (2.7)

2.80 (1.4)

1.37

0.189

320 (49.9)

331 (47.7)

-11

0.170

1 back

3.29 (1.9)

1.43 (1.0)

1.85

0.019*

330 (29.0)

337 (41.3)

-7

0.869

2 back

2.24 (1.4)

1.36 (0.9)

0.87

0.076

330 (42.7)

332 (40.7)

-14

0.856

 

p value

  

p value

  

1-2 back

0.023

0.086

  

0.87

0.84

  
  1. Comparison of amplitude and latency measures among SZ group and HS. * p value < 0.05 (Mann-Whitney test).