arose from a combination of reduced Ca2+-activated K+ current and increased Na+ conductance, a suggestion which, again, is fully in line with our in vitro data. Mirroring these findings from the CL thalamus, we have recently noted that some TC neurons in the cat LGN also exhibit brief periods of rhythmic bursting at 40–60 Hz during natural wakefulness (Fig. 6). Thus, we suggest that rhythmic bursting in the γ band may occur in cells from a variety of both specific and non-specific thalamic nuclei where it could play a role in driving behaviourally-relevant, synchronized γ oscillations as is the case for FRB in the neocortex (Cunningham et al. 2004).
