BrainStreamEventFields: Difference between revisions
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Wiki-admin (talk | contribs) Created page with "<!---Start1---> = Fields of the Event Structure = Every incoming marker instatiates a new [[BrainStreamImportantConcepts#SecEvents|event]. The event structure contains a numb..." |
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= Fields of the Event Structure = | = Fields of the Event Structure = | ||
Every incoming marker instatiates a new [[BrainStreamImportantConcepts#SecEvents|event]. The event structure contains a number of fixed fields: | Every incoming marker instatiates a new [[BrainStreamImportantConcepts#SecEvents|event]]. The event structure contains a number of fixed fields: | ||
<pre>event.name : name of the marker | <pre> | ||
event.name : name of the marker | |||
event.time : time [s] referred to number of acquired samples | event.time : time [s] referred to number of acquired samples | ||
event.brainstreamversion : current version of | event.brainstreamversion : current version of BrainStream | ||
</pre> If a DATA timepoint is specified for the event, the event structure also contains the following fields: <br /><pre> | </pre> | ||
event.BRAINSTREAM : contains information required for internal | If a DATA timepoint is specified for the event, the event structure also contains the following fields: <br /> | ||
<pre> | |||
event.BRAINSTREAM : contains information required for internal BrainStream processing | |||
.data.raw : raw data [channels x data] | .data.raw : raw data [channels x data] | ||
.trial.time : start of data segment [s] | .trial.time : start of data segment [s] | ||
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</pre> | </pre> | ||
*: channel and label information can be grouped together based on settings specified for corresponding hardware device topic in the blocksettings. It uses fieldrips <tt>ft_channelselection</tt> function to match channels that belong to certain groups, like 'EEG' or 'EOG'. The data for the selected channels appears in a separate field. For example, if you defined a group of eeg electrodes, the data for these electrodes shows up in event.data.eeg. See [[Http://fieldtrip.fcdonders.nl/reference/ft_channelselectionChannelSelection|http://fieldtrip.fcdonders.nl/reference/ft_channelselection channel selection]] on the FieldTrip website for more options. | <nowiki>*</nowiki>: channel and label information can be grouped together based on settings specified for corresponding hardware device topic in the blocksettings. It uses fieldrips <tt>ft_channelselection</tt> function to match channels that belong to certain groups, like 'EEG' or 'EOG'. The data for the selected channels appears in a separate field. For example, if you defined a group of eeg electrodes, the data for these electrodes shows up in event.data.eeg. See [[Http://fieldtrip.fcdonders.nl/reference/ft_channelselectionChannelSelection|http://fieldtrip.fcdonders.nl/reference/ft_channelselection channel selection]] on the FieldTrip website for more options. | ||
Depending on the utilized data source, additional fields might be present inside the hdr structure. | Depending on the utilized data source, additional fields might be present inside the hdr structure. | ||