Table 4.
Summary of impairment network and oscillation effects for AD and LBD patients.
| One Sample T Test (1–100 Hz) |
Alert | Orient | Conflict | Executive |
|---|---|---|---|---|
| AD | bilateral middle frontal areas bilateral precentral areas bilateral postcentral areas |
right temporal areas | bilateral inferior frontal areas bilateral insular lack of inferior temporal areas (α) |
bilateral inferior frontal areas left insular lack of inferior temporal areas (α) |
| LBD | bilateral middle frontal areas right precentral areas bilateral postcentral areas temporal-to-occipital network |
temporal-central-occipital network | right inferior frontal areas central-to-occipital areas |
bilateral inferior frontal areas right insular central-to-occipital areas |
| Group Comparisons | Alert | Orient | Conflict | Executive |
| HC > AD & HC > LBD | left superior frontal areas (β γ) right inferior frontal areas (θ α β γ) left inferior parietal areas (β γ) |
left inferior frontal areas (α β γ) left precentral areas (α β γ) |
/ | left inferior frontal areas (α β γ) left precentral areas (null) left middle frontal areas (α β γ) left occipital areas (α β γ) |
| AD > HC & AD > LBD | bilateral middle frontal areas (θ α β γ) bilateral precentral areas (θ α β γ) right postcentral areas (null) right inferior frontal areas (α β γ) |
/ | right inferior frontal areas (θ α β γ) left inferior frontal areas (θ α β γ) bilateral insular (θ α β γ) right middle frontal areas (null) right precentral areas (θ α β γ) |
left inferior frontal areas (θ α β γ) left insular (null) |
| LBD > HC | / | / | / | right inferior frontal areas (θ β γ) right insular (θ β γ) |
Notes: the null means no significant oscillatory differences were found for the area. The symbols θ α β γ indicate different frequencies: theta band, 4–7 Hz; alpha band, 8–13 Hz; beta band, 14–30 Hz; gamma band, 31–100 Hz.