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. Author manuscript; available in PMC: 2012 Jan 15.
Published in final edited form as: J Neurosci Methods. 2010 Oct 20;194(2):358–373. doi: 10.1016/j.jneumeth.2010.10.011

Fig. 3.

Fig. 3

Artificial F-E templates. (a) Three artificial F-E templates (the 1st F-E template i.e. lowest frequency distribution, the 230th and the 460th F-E templates from left to right) from the 677 templates created for simulating gradual changes in energy distribution across the frequency spectrum. Chosen bands were artificially picked to be the 4th level of decomposition (narrow bands). (b) Three artificial F-E templates from the 677 templates created for simulating changes in band selections (representing temporal shifts) while maintaining a similar energy distribution across the frequency bands (taken for the 230th template of the previous examination). (c) F-E similarity matrix of the 677 narrow bands templates. (d) F-E similarity matrix of the 677 templates with varying band selection. (e) FH map of spectral shift similarity matrix (ranging from low frequency distribution in blue to high frequency distribution in red). A “twisting” shape is observed demonstrating the gradual ascent of frequency spectrum across the templates. (f) FH map of the temporal shift similarity matrix. A multi-dimesional structure with multiple clusters is observed.