Table 2 The main dependent variables analyzed in the MEG spectrograms for migraine subjects and controls
From: Abnormality of visual neuromagnetic activation in female migraineurs without aura between attacks
Frequency range | dependent variable | Position of the pattern | Migraine subjects | Healthy controls | P value |
|---|---|---|---|---|---|
5-100 Hz | Latency | Left | 122.2 ± 4.9 | 116.2 ± 5.1 | 0.002 |
Right | 113.7 ± 5.3 | 108.8 ± 4.1 | 0.006 | ||
Spectral Power (RMS) | Left | 115.4 ± 11.0 | 139.5 ± 6.2 | <0.00 | |
Right | 92.5. ± 8.9 | 71.1 ± 8.6 | <0.00 | ||
Source Strength (fT/Hz) | Left | 355.3 ± 21.8 | 370.0 ± 16.3 | 0.035 | |
Right | 258.2 ± 13.5 | 262.7 ± 10.0 | NS | ||
Location | Left | cPVC: (17/17) | cPVC: (17/17) | NS | |
RBcPVC: (8/17) | RBcPVC: (5/17) | NS | |||
Right | cPVC: (17/17) | cPVC: (17/17) | NS | ||
RBcPVC: (7/17) | RBcPVC: (5/17) | NS | |||
100-1000 Hz | Source Strength (fT/Hz) | Left | 17.4 ± 3.2 | 21.1 ± 2.7 | 0.01 |
Right | 15.1 ± 2.7 | 17.4 ± 3.2 | 0.02 | ||
Location | Left | cPVC: (11/17) | cPVC: (9/17) | NS | |
RBcPVC:(6/17) | RBcPVC:(7/17) | NS | |||
Right | cPVC: (11/17) | cPVC: (10/17) | NS | ||
RBcPVC: (3/17) | RBcPVC: (5/17) | NS |