Quantitative EEG Markers in Mild Cognitive Impairment: Degenerative versus Vascular Brain Impairment

Table 4

Relative power band ratios in amygdalo-hippocampal complex (AHC), hippocampal and amygdalar atrophy. Hippocampal and amygdalar volumes refer to the whole amygdalo-hippocampal complex (AHC) and are singularly considered (individual).

Hippocampal + amygdalar volume	theta/gamma ratio (μv^2)	𝑃 value	alpha3/alpha2 ratio (μv^2)	𝑃 value
Group1	1.40±0.35	0.06	1.05±0.11	0.07
Group2	1.43±0.35		1.11±0.14
Group3	1.47±0.44		1.12±0.16
AHC-hippocampal volume
Group1	1.39±0.27	0.7	1.04±0.11	0.03
Group2	1.48±0.45		1.11±0.15
Group3	1.43±0.41		1.12±0.14
AHC-amygdalar volume
Group1	1.36±0.37	0.03	1.04±0.13	0.2
Group2	1.44±0.36		1.12±0.16
Group3	1.49±0.39		1.09±0.11
Individual hippocampal volume
Group1	1.39±0.27	0.7	1.04±0.11	0.1
Group2	1.48±0.45		1.07±0.15
Group3	1.43±0.40		1.10±0.14
Individual amygdalar volume
Group1	1.39±0.37	0.1	1.04±0.13	0.4
Group2	1.43±0.36		1.12±0.16
Group3	1.46±0.39		1.09±0.11