Inferring oscillatory modulation in neural spike trains
Fig 1
Regular and irregular oscillations.
A) LOST infers (red) the oscillatory modulation (black), if any, underlying the spikes (vertical ticks) in a spike train, using only the spiking data. The oscillation amplitude stabilizes after the first few spikes are observed. B) We refer to spectrally narrow (wide) oscillations as regular (irregular), shown by the blue (pink) oscillation with OCV = 0.02 (0.22). The correlation between the current and past phase decays slowly (quickly) as a function of lag in regular (irregular) oscillations.