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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Eur J Neurosci. 2013 Jul 28;38(9):10.1111/ejn.12316. doi: 10.1111/ejn.12316

Figure 5.

Figure 5

Topographical representations of the grand mean spectral amplitude, across reversal frequencies (n = 26), comparing ssVEP amplitude in response to the CS+ and CS− gratings, across all experimental phases, and for the luminance (top row) versus chromatic gratings (bottom row). Spectra were calculated on the last 3200 ms of the time-domain averaged ssVEPs, where US presentation is imminent in the CS+ condition. Maps are generated by means of spherical splines, including extrapolations to locations below the electrode array (Junghöfer et al., 1997).