Table 7 Correlation between clinical variables and psychometrics scales, and ERP among mood disorder patients

Total score of MOCA

r

0.521

0.125

 − 0.588

 − 0.709

P value

0.003*

0.510

0.001*

0.0001*

Total IQ score

r

0.456

0.440

 − 0.212

 − 0.325

P value

0.011*

0.015*

0.262

0.080

Total score of MAS

r

0.245

 − 0.257

 − 0.258

 − 0.227

P value

0.191

0.170

0.168

0.227

Trial 1

r

0.392

0.352

 − 0.291

 − 0.412

P value

0.032*

0.056

0.119

0.024*

Trial 2

r

0.468

0.318

 − 0.235

 − 0.301

P value

0.009*

0.087

0.211

0.106

Trial 3

r

0.369

0.200

 − 0.358

 − 0.377

P value

0.045*

0.290

0.052

0.040*

Total recall

r

0.443

0.253

 − 0.319

 − 0.408

P value

0.014*

0.177

0.085

0.025*

Learning

r

0.029

 − 0.050

 − 0.156

 − 0.033

P value

0.877

0.791

0.411

0.861

Delayed recall

r

0.456

0.308

 − 0.241

 − 0.395

P value

0.011*

0.098

0.200

0.031*

Percent retained

r

0.126

0.360

0.043

 − 0.169

P value

0.506

0.051

0.822

0.372

Recognition hits

r

0.258

0.306

 − 0.154

 − 0.328

P value

0.169

0.100

0.418

0.076

Recognition false alarm

r

 − 0.304

 − 0.138

0.067

0.221

P value

0.102

0.468

0.726

0.241

Recognition Discrimination Index

r

0.368

0.251

 − 0.118

 − 0.318

P value

0.045*

0.180

0.533

0.087

Recognition response bias

r

 − 0.168

0.007

0.015

0.083

P value

0.374

0.970

0.938

0.662

P 300 average latency

r

 − 0.280

 − 0.249

0.343

0.158

P value

0.134

0.184

0.064

0.404

P300 average amplitude

r

0.148

 − 0.051

0.161

 − 0.041

P value

0.436

0.790

0.394

0.830