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. Author manuscript; available in PMC: 2008 May 31.
Published in final edited form as: Hippocampus. 2007;17(12):1252–1271. doi: 10.1002/hipo.20374

Figure 4.

Figure 4

Simulations of interference between oscillations in dendrite and soma. A. Static frequencies of 6.91 Hz in the dendrite and 6.42 Hz in the soma (mean dorsal frequency in data) result in an oscillatory interference pattern with frequency fb 0.49 Hz and period Tb of 2.04 sec. At a speed of 20 cm/sec this results in a distance between firing (spatial wavelength λb) of about 40 cm. B. Shifting the frequencies to lower levels representing ventral frequencies 4.56 Hz in dendrite and 4.23 Hz in soma results in interference with frequency of 0.33 Hz and period of 3.03 sec. At a constant speed of 20 cm/sec this results in a spatial wavelength of about 60 cm.