User Tutorial:Designing an Eloc File - Revision history

Mellinger: /* See also */

2008-02-25T16:41:09Z

Jfialkoff: /* Exporting your montage file for use with BCI2000 */

2008-01-08T15:40:16Z

Exporting your montage file for use with BCI2000

← Older revision		Revision as of 15:40, 8 January 2008
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	# Click File>Export to>BCI2000 Montage File.		# Click File>Export to>BCI2000 Montage File.
	# Navigate to <tt>files/samplefile</tt>.		# Navigate to <tt>files/samplefile</tt>.
	# Enter the filename "myeeg64.csv" and save. Please take note of the "csv" extension as opposed to the "loc" extension ~~in the previous step~~. Although the extension does not matter, we will want to avoid overwriting the file we created in the previous section.		# Enter the filename "myeeg64.csv" and save. Please take note of the "csv" extension as opposed to the "loc" extension used previously. Although the extension does not matter, we will want to avoid overwriting the file we created in the previous section.

	==See also==		==See also==

Jfialkoff: /* Modifying an existing montage file */

2008-01-04T00:14:40Z

Modifying an existing montage file

← Older revision		Revision as of 00:14, 4 January 2008
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	"eeg58.loc" is a montage file for an electrode cap with 58 electrodes. The electrode layout for the data we'll be analyzing later is very similar, but it has 6 more electrodes which are marked in the diagram below. So, to create the 64 electrode montage file, we can simply modify the 58 electrode montage file that we've already imported. When we do this, we must make sure that the numbers in the new montage file are the same as in the diagram below as these numbers correspond to channels on an amplifier.		"eeg58.loc" is a montage file for an electrode cap with 58 electrodes. The electrode layout for the data we'll be analyzing later is very similar, but it has 6 more electrodes which are marked in the diagram below. So, to create the 64 electrode montage file, we can simply modify the 58 electrode montage file that we've already imported. When we do this, we must make sure that the numbers in the new montage file are the same as in the diagram below as these numbers correspond to channels on an amplifier.
	[[Image:elocHelperTutorialEloc64.png]]		[[Image:elocHelperTutorialEloc64.png]]

	In ''Eloc Helper'', when an electrode is added with a number that is already taken by another electrode, the old electrodes are displaced in order to make room for the new electrode. This is also the case if an electrode is edited to have the same number as another electrode in the list. So, the easiest way for us to build the 64 electrode montage file from the 58 electrode montage file is to add the highest number electrodes first. So, we begin by adding electrode 62 (as labeled in the diagram above):		In ''Eloc Helper'', when an electrode is added with a number that is already taken by another electrode, the old electrodes are displaced in order to make room for the new electrode. This is also the case if an electrode is edited to have the same number as another electrode in the list. So, the easiest way for us to build the 64 electrode montage file from the 58 electrode montage file is to add the highest number electrodes first. So, we begin by adding electrode 62 (as labeled in the diagram above):

Jfialkoff: /* Exporting your montage file for use with BCI2000 */

2008-01-03T21:37:49Z

Exporting your montage file for use with BCI2000

← Older revision		Revision as of 21:37, 3 January 2008
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	== Exporting your montage file for use with BCI2000 ==		== Exporting your montage file for use with BCI2000 ==
			Although this step is unnecessary for the purposes of the tutorial, you can follow these steps to export your new montage file for use with ''BCI2000'':
			# Click File>Export to>BCI2000 Montage File.
			# Navigate to <tt>files/samplefile</tt>.
			# Enter the filename "myeeg64.csv" and save. Please take note of the "csv" extension as opposed to the "loc" extension in the previous step. Although the extension does not matter, we will want to avoid overwriting the file we created in the previous section.

	==See also==		==See also==

Jfialkoff: /* Exporting your montage file for use with BCI2000 Offline Analysis */

2008-01-03T21:33:01Z

Exporting your montage file for use with BCI2000 Offline Analysis

← Older revision		Revision as of 21:33, 3 January 2008
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	== Exporting your montage file for use with BCI2000 Offline Analysis ==		== Exporting your montage file for use with BCI2000 Offline Analysis ==
			Follow these steps to export your new montage file for use with ''BCI2000 Offline Analysis'':
			# Click File>Export to>Offline Analysis Montage File.
			# Navigate to <tt>files/samplefile</tt>.
			# Enter the filename "myeeg64.loc" and save.

	== Exporting your montage file for use with BCI2000 ==		== Exporting your montage file for use with BCI2000 ==

Jfialkoff: /* Modifying an existing montage file */

2008-01-03T21:28:50Z

Modifying an existing montage file

← Older revision		Revision as of 21:28, 3 January 2008
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	\|Fc5		\|Fc5
	\|}		\|}

			Now that you've finished creating your electrode file, you'll want to export it so that it can be used with the ''BCI2000 Offline Analysis'' tool. You may also wish to export to the montage file format supported by ''BCI2000''. Note that Eloc Helper is not capable of importing ''BCI2000''-formatted montage files. Therefore, it is recommended that you always export to an ''Offline Analysis''-formatted montage file and then export to a ''BCI2000''-formatted montage file if necessary. So, let's begin by exporting to an ''Offline Analysis''-formatted montage file as is recommended:

	== Exporting your montage file for use with BCI2000 Offline Analysis ==		== Exporting your montage file for use with BCI2000 Offline Analysis ==

Jfialkoff: /* Modifying an existing montage file */

2008-01-03T21:23:38Z

Modifying an existing montage file

@@ Line 15: / Line 15: @@
 # Click File>Import>EEG Montage File.
 # Since we added a new electrode in the previous section, you will be asked if it's okay to overwrite all the current entries.  Click "Yes".
 # In the "Choose a montage file" file browser, navigate to <tt>data/samplefiles</tt> and double-click or otherwise open the "eeg58.loc" file.
 == Exporting your montage file for use with BCI2000 Offline Analysis ==

Jfialkoff at 20:20, 3 January 2008

2008-01-03T20:20:36Z

← Older revision		Revision as of 20:20, 3 January 2008
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	== Modifying an existing montage file ==		== Modifying an existing montage file ==
			# Click File>Import>EEG Montage File.
			# Since we added a new electrode in the previous section, you will be asked if it's okay to overwrite all the current entries. Click "Yes".
			# In the "Choose a montage file" file browser, navigate to <tt>data/samplefiles</tt> and double-click or otherwise open the "eeg58.loc" file.
			#

	== Exporting your montage file for use with BCI2000 Offline Analysis ==		== Exporting your montage file for use with BCI2000 Offline Analysis ==

Jfialkoff: /* Creating a new montage file */

2008-01-03T19:46:00Z

Creating a new montage file

← Older revision		Revision as of 19:46, 3 January 2008
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	## Click the "Create New" button.		## Click the "Create New" button.
	## Set the coordinates by clicking the "Use Grid" button and then clicking on the blank electrode map.		## Set the coordinates by clicking the "Use Grid" button and then clicking on the blank electrode map.
	## Click the "Update" button after which you should see an electrode marker appear in the location you clicked on in the previous step. Notice that the marker is labeled with the number "1" and that the electrode list has a new item "1: elec" ~~that uniquely identifies your new~~ electrode ~~by using its~~ number and label. Try changing the number and label to something else and clicking "Update." Keep in mind that the number must be a strictly positive integer (i.e., 1, 2, 3...) and that the label must be no more than 4 characters. [[Image:elocHelperTutorial1.png]]		## Click the "Update" button after which you should see an electrode marker appear in the location you clicked on in the previous step. Notice that the marker is labeled with the number "1" (i.e., the value that was set automatically for the number property of the electrode) and that the electrode list has a new item "1: elec" consisting of the electrode number and label. Try changing the number and label to something else and clicking "Update." Keep in mind that the number must be a strictly positive integer (i.e., 1, 2, 3...) and that the label must be no more than 4 characters. [[Image:elocHelperTutorial1.png]]
	~~# Cli~~
			For the montage files we need to create to work with the data in this tutorial, it is much more convenient to start from an existing file.

	== Modifying an existing montage file ==		== Modifying an existing montage file ==

Jfialkoff: /* Creating a new montage file */

2008-01-03T19:40:22Z

Creating a new montage file

← Older revision		Revision as of 19:40, 3 January 2008
Line 8:		Line 8:
	## Click the "Create New" button.		## Click the "Create New" button.
	## Set the coordinates by clicking the "Use Grid" button and then clicking on the blank electrode map.		## Set the coordinates by clicking the "Use Grid" button and then clicking on the blank electrode map.
	## Click the "Update" button after which you should see an electrode marker appear in the location you clicked on in the previous step. Notice that the marker is labeled with the number "1" and that		## Click the "Update" button after which you should see an electrode marker appear in the location you clicked on in the previous step. Notice that the marker is labeled with the number "1" and that the electrode list has a new item "1: elec" that uniquely identifies your new electrode by using its number and label. Try changing the number and label to something else and clicking "Update." Keep in mind that the number must be a strictly positive integer (i.e., 1, 2, 3...) and that the label must be no more than 4 characters. [[Image:elocHelperTutorial1.png]]
	# Cli		# Cli



	== Modifying an existing montage file ==		== Modifying an existing montage file ==

← Older revision		Revision as of 16:41, 25 February 2008
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	==See also==		==See also==
	[[User Tutorial:~~BCI2000~~ Offline ~~Frequency~~ Analysis]]		[[User Tutorial:Performing an Offline Analysis]]

	[[Category:Tutorial]]		[[Category:Tutorial]]