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Table 3 Repeated measures ANOVA beta-ERD paired analysis in different phases of the migraine cycle (preictal, ictal and postictal; compared to a paired interictal recording)

From: Fluctuations of sensorimotor processing in migraine: a controlled longitudinal study of beta event related desynchronization

Beta-ERD response

Within subjects effects

Preictal

 

Ictal

 

Postictal

 
 

F (1, 10)

p

F (1, 12)

p

F (1, 8)

p

Phase

3.472

.089

.045

.84

.833

.39

Side

.319

.58

3.318

.094

.162

.70

SM/M

6.084

.031

18.706

.001

2.623

.14

Side × SM/M

1.231

.29

3.448

.088

3.156

.11

Side × Phase

3.105

.11

.533

.48

.094

.77

SM/M × Phase

.539

.48

.305

.59

1.721

.23

Side × SM/M × Phase

2.533

.14

.125

.73

2.072

.19

  1. Paired analysis of subgroups preictal (< 36 h before migraine pain attack), ictal and postictal (< 36 h after migraine pain attack). Beta-ERD response is the ratio between mean power in the interval from 1 to 3 s after movement onset and mean power in the interval − 3 to −1 s before movement onset (baseline). Ratios were LN-transformed before statistical analysis. Factors used were side (C3 vs C4 electrode), SM/M (sensorimotor vs motor) and cyclic phase (preictal-interictal, ictal-interictal and postictal-interictal)
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The Journal of Headache and Pain

ISSN: 1129-2377

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