[Alpha band coherence analysis of EEG in healthy adult's and Alzheimer's type dementia patients].
We studied the occipital inter-hemispheric coherence (IHCoh) of EEG (electrodes O1-O2) for alpha band (alpha1 - 8,0 to 10,0 Hz and alpha2 - 10,1 to 12,5 Hz) in healthy adults and Alzheimer's type dementia (ATD) subjects, to observe if there is any significant difference between these two groups that could help in the early diagnosis of ATD. We found a decrease of occipital IHCoh in ATD group for both alpha sub-bands. We believe that Coh analysis of EEG is a powerful auxiliary method in ATD diagnosis.
Anghinah
R
R
Setor de Eletroencefalografia, Hospital do Servidor Público do Estado.anghinah@opus.com.br
Kanda
P A
PA
Jorge
M S
MS
Lima
E E
EE
Pascuzzi
L
L
Melo
A C
AC
D000513:Alpha Rhythm; D000544:Alzheimer Disease / Q000175:diagnosis* / Q000503:physiopathology; D016022:Case-Control Studies; D003937:Diagnosis, Differential; D004569:Electroencephalography / Q000379:methods*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
Estudo da coerência do eletrencefalograma para a banda de frequência alfa em indivíduos adultos normais e com provável demência do tipo Alzheimer.