Events, Intervals – Multichannel Systems NeuroExplorer User Manual

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Numerical values of the timestamps (in seconds) are shown in the Timestamps sheet of the Data
view:

2.1.2. Events


Event data type in NeuroExplorer is used to represent the series of timestamps recorded from
external devices (for example, stimulation times recorded as pulses produced by the stimulus
generator). Event data type stores only the times when the external events occurred. A special

Marker

data type is used to store the timestamps together with other stimulus or trial information.


Events are very similar to spike trains. The only difference between spike trains and events is that
spike trains may contain additional information about recording sites, electrode numbers, etc.


Internally, event timestamps are represented exactly as

Spike Train

timestamps. See

Spike Trains

for

more information about the timestamps in NeuroExplorer.

Creating Event Variables


You can add events to the data file using Copy | Paste command in the Timestamps view (see

Importing Data from Spreadsheets

for details).


You can also create additional events based on the events in the data file. Use Edit | Operations on
Data Variables
menu command and then select one of the operations in the Operations dialog.

2.1.3. Intervals


Intervals are usually used in NeuroExplorer to select the data from a specified time periods (see

Data

Selection Options

for details).


Each interval variable can contain multiple time intervals. For example, the Frame variable in the
following figure has two intervals:

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