Relation between Resting State Front-Parietal EEG Coherence and Executive Function in Parkinson’s Disease

Table 2

Relation between EEG coherence in the frontoparietal electrode pair and ED in PD patients.

Range		Age-controlled standardized BADS score
		<70 (patients with ED)	≥70 (patients without ED)
Alpha	Low F3-P3 (left side) coherence group	13	26	0.016
	High F3-P3 (left side) coherence group	2	27
	Low F4-P4 (right side) coherence group	11	22	0.041
	High F4-P4 (right side) coherence group	4	31
Theta	Low F3-P3 (left side) coherence group	12	38	0.742
	High F3-P3 (left side) coherence group	3	15
	Low F4-P4 (right side) coherence group	8	32	0.768
	High F4-P4 (right side) coherence group	7	21

Data are expressed as number of patients.
BADS: Behavioral Assessment of the Dysexecutive Syndrome; ED: executive dysfunction; PD: Parkinson’s disease.
ED was defined as age-controlled standardized BADS score <70.
The low coherence group had coherence <0.5 and the high coherence group had coherence ≥0.5.
The relation between two coherence groups and ED was assessed using Fisher’s exact test. Statistically significant ().