Multichannel Systems NeuroExplorer User Manual

Page 109

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Variable

Variable name.

Reference

The name of the reference event.

NumRefEvents

The number of reference events.

YMin

Minimum epoch count for this variable.

YMax

Maximum epoch count for this variable.

Filter Length

The length of the interval filter.

Algorithm


Let ref[i] be the array of timestamps of the reference event, ts[i] be the spike train (each ts is the
timestamp) and epochs are specified as EpochStart[j], EpochEnd[j].


For each timestamp ref[k]:


1) calculate the distances from this event (or spike) to all the spikes in the spike train:

d[i] = ts[i] - ref[k]


2) for each i:


if d[i] is inside the first epoch, increment the counter for the first epoch:

if d[i] >= EpochStart[1] and d[i] < EpochEnd[1]

then epochcount[1] = epochcount[1] +1


if d[i] is inside the second epoch, increment the counter for the second epoch:

if d[i] >= EpochStart[2] and d[i] < EpochEnd[2]

then epochcount[2] = epochcount[2] +1


and so on... .

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