Fig. 3
From: The olfactory bulb modulates entorhinal cortex oscillations during spatial working memory
Low frequencies of the OB phase strongly modulate high frequencies EC power during correct working memory performance. a, d, g and j Polar distribution sample of delta and theta OB phase and gamma-1 (30–50 Hz) and gamma-2 (50–80 Hz) power of EC. The green arrow denotes the mean resultant vector length. b, e, h, k 2D sample of OB low-frequency phases coupling with gamma-1 and gamma-2 power EC. c, f, i and l Animals during correct trials show higher values of mean resultant vector length as indicating the modulatory effect of OB low-frequency phases on EC high-frequency power. Data were averaged for either correct (blue dots) and wrong (red dots) trials; data were analyzed by paired t test, n = 6 per group. * p < 0.05, ** p < 0.05. OB, olfactory bulb; EC, entorhinal cortex