How to add and edit markers in BESA
BESA Research is the most widely used software for source analysis and dipole localization in EEG, MEG, Evoked Potentials and ERP research.——from official website
How to use the besa software, you can see the articles.
https://7988888.xyz/besa/
《BESA软件界面简介》
Today,I talk about how to add and edit markers in the software.
First of all, I need to say that this is the operation after the experiment collection.
For different parameter modification methods of marker in besa, please refer to the following:
Event Codes
The event code Code must be one of the following integers:
Code | Event/Trigger Type |
---|---|
1 | Trigger |
2 | Comment |
3 | Marker |
11 | Pattern1 |
12 | Pattern2 |
13 | Pattern3 |
14 | Pattern4 |
15 | Pattern5 |
21 | Artifact on |
22 | Artifact off |
31 | Epoch on |
32 | Epoch off |
41 | New segment |
42 | Average segment |
Here are a couple of typical examples:
1) Simple trigger file
Tms | Code | TriNo | Comnt |
---|---|---|---|
100.234 | 1 | 3 | Trigger: 3 |
2300.456 | 1 | 1 | Trigger:1 |
4500.21 | 1 | 1 | Trigger:1 |
9800.47 | 1 | 7 | Trigger:7 |
12500.78 | 1 | 2 | Trigger:2 |
21237 | 1 | 1 | Trigger:1 |
2) Trigger file with reaction code and reaction time
Tms | Code | TriNo | RTsec | RCode |
---|---|---|---|---|
100.234 | 1 | 3 | 0.23 | 1 |
2300.456 | 1 | 1 | 1.11 | 2 |
4500.21 | 1 | 1 | 0.15 | 1 |
9800.47 | 1 | 7 | 0.87 | 0 |
12500.78 | 1 | 2 | 2.1 | 2 |
21237 | 1 | 1 | 3 | 1 |
3) Event file without triggers
Tmu | Code | Comnt |
---|---|---|
10000.234 | 3 | Marker |
230000.456 | 12 | |
450000.21 | 14 | |
980000.47 | 12 | |
1250000.78 | 3 | Marker |
2123700 | 2 | Comment |
2534100.567 | 15 |
4) File including triggers and events
Tms | Code | TriNo | RTsec | RCode | Comnt |
---|---|---|---|---|---|
100.234 | 2 | 0 | 0 | 0 | CommentSet |
2300.456 | 1 | 2 | |||
4500.21 | 1 | 1 | 0.15 | 1 | |
9800.47 | 11 | ||||
12500.78 | 3 | ||||
21237 | 2 | 0 | 3 | 1 | Comment |
25341.567 | 15 |
5) New Segments
Tms | Code | TriNo | Comnt |
---|---|---|---|
0 | 41 | 2010-04-26T15:30:20.31 | Start recording |
21000 | 41 | 2010-04-27T09:17:00.0 | Next day |
The new segment at the time 0 overrides the start time in the file. A second segment at 21 s starts a new data block one day later at 9:17.
6) Average Segments
Tms | Code | TriNo | Comnt |
---|---|---|---|
0 | 42 | 100000 | Cond 1: 25 avs |
1100 | 42 | 200000 | Cond 2: 201 avs |
The file contains two average segments. The first, with a prestimulus interval of 100 ms, has a duration of 1100 ms. The second, with a prestimulus interval of 200 ms, has a length up to the end of the data file.
Reference website:
http://wiki.besa.de/index.php?title=Event_File_Format
谢谢大家观看,如有帮助,来个关注或者分享转发吧!
本文作者:陈锐
博客网址:https://7988888.xyz/
知乎网址:https://www.zhihu.com/people/braintechnology
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