Table 5.

LLA of the Effects of Hemisphere, Region, Frequency, and Epileptic Zone on the Prevalence of Search-related Oscillations

Factor	Level	Unstd. Par.	z	OR
Main Effects
Region	Frontal	0.35	2.77	1.4*
	Temporal	0.27	2.21	1.3*
	Hippo.	−0.75	−2.35	0.5*
Hemisphere	Right	0.26	2.26	1.3*
Frequency	Delta	0.51	4.80	1.7**
	Theta	0.66	6.30	1.9**
	Beta	−0.28	−2.09	0.8*
	Gamma	−1.0	−4.65	0.4**
Epileptic	Epileptic	0.25	3.78	1.3**
Interactions
Hemisphere × Frequency	Right gamma	0.49	2.27	1.6*
	Left delta	0.20	1.88	1.2
Hemisphere × Region	Right hippo.	0.63	1.97	1.9*
	Left parietal	0.44	2.34	1.6*
Hemisphere × Epileptic	Left epileptic	0.21	3.19	1.2*

Positive parameter estimates (OR > 1) indicate that the factor/level increases the probability of search-related oscillations; negative parameter estimates (OR < 1) indicate that the factor/level decreases the probability of search-related oscillations. Table displays all effects with p < .1. Unstd. Par. = unstandardized parameter estimate; z = standardized parameter estimate; hippo. = hippocampus.

^*p < .05.

^**p < .001.