Bug 1373 - bdfimport plugin ignores BioSemi discontinuity triggers
bdfimport plugin ignores BioSemi discontinuity triggers
Product: EEGLAB
Classification: Unclassified
Component: Plugin for EEGLAB (DIPFIT...)
All All
: P3 normal
Assigned To: Bugzilla Manager
Depends on:
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Reported: 2012-11-20 01:44 PST by Andreas Widmann
Modified: 2019-11-21 04:49 PST (History)
1 user (show)

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Comment 1 Arnaud Delorme 2019-11-21 04:49:12 PST
Moved to Github
Description Andreas Widmann 2012-11-20 01:44:27 PST
A single BioSemi BDF file may contain multiple recording epochs. Discontinuities are marked in bit 16 of the trigger channel (http://www.biosemi.com/faq/trigger_signals.htm). Discontinuities should be marked with a boundary event at import to avoid DC artifacts. This is particularly important for filtering.

Additionally, marking/rejecting segments with CMS out range might improve observed data quality.