Quantitative EEG findings in patients with acute, brief depression combined with other fluctuating psychiatric symptoms: a controlled study from an acute psychiatric department

Table 3 Quantitative electroencephalography (QEEG) findings

	AUDS patients n = 16	MDE patients n = 16	p-value^a
Delta activity (μV)
frontocentral	8.8 (2.3)	7.6 (1.6)	0.08
temporal	10.3 (3.1)	8.5 (1.6)	0.03
parietooccipital	8.8 (2.9)	7.21 (1.4)	0.10
Theta activity (μV)
frontocentral	7.6 (3.4)	6.9 (2.5)	0.78
temporal	9.0 (4.3)	7.8 (2.5)	0.67
parietooccipital	8.5 (4.2)	7.5 (2.8)	0.56
Alpha activity (μV)
frontocentral	10.9 (4.8)	11.7 (4.6)	0.59
temporal	12.4 (5.8)	12.7 (4.8)	0.62
parietooccipital	14.9 (9.3)	15.1 (5.8)	0.42
Alpha peak frequency (Hz)
occipital	9.94 (0.63)	10.24 (0.73)	0.27
occipital absolute side difference	0.86 (0.71)	0.46 (0.38)	0.13

Mean regional spectral amplitudes in μV (Standard deviation, SD) and alpha peak frequency in Hz (SD). Test 1, 2 and 3, (left and right side) values have been averaged.
^aMann-Whitney U test,
AUDS: Acute Unstable Depressive Syndrome. MDE: Major Depressive Episode

ISSN: 1471-244X