Biomedical Engineering Reference
In-Depth Information
Figure 8.2
Examples of criteria used to assign spikes to bursts. a) A dip in the ISI histogram
separates burst interspike intervals from longer interburst intervals (arrow; same cell
as in
Figure 8.5
).
b) Joint ISI plots clearly identify initial spikes of a burst (right
rectangle) from intraburst spikes (left square; adapted from [99]). c) Bursts may
be defined by computing a surprise factor that measures their deviations from the
expected patterns of spontaneous independent spikes (adapted from [73]). d) Spike
train autocorrelation functions of bursting neurons sometimes show clear peaks that
are eliminated by treating bursts as single events (gray line; adapted from [86]). A
similar definition has used the power spectrum of spike trains (Fourier transform of
the autocorrelation function; see [4]).
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