Moving Dipole Fit - Revision history

Jaehyun at 13:27, 5 May 2021

2021-05-05T13:27:31Z

Jaehyun at 07:33, 11 September 2018

2018-09-11T07:33:38Z

Jaehyun at 15:57, 10 September 2018

2018-09-10T15:57:24Z

Jaehyun at 07:44, 19 May 2017

2017-05-19T07:44:43Z

Harald at 09:20, 11 April 2016

2016-04-11T09:20:03Z

Harald at 09:17, 11 April 2016

2016-04-11T09:17:49Z

Harald at 12:50, 8 April 2016

2016-04-08T12:50:00Z

Harald at 12:48, 8 April 2016

2016-04-08T12:48:45Z

Harald at 12:48, 8 April 2016

2016-04-08T12:48:14Z

Harald at 12:45, 8 April 2016

2016-04-08T12:45:42Z

@@ Line 2: / Line 2: @@
 |title = Module information
 |module = BESA Research Standard or higher
-|version = 5.2 or higher
+|version = BESA Research 5.2 or higher
 }}

@@ Line 17: / Line 17: @@
 === 1. Define a hot key for the moving dipole fit ===
-To do this:
+[[File:MovingDipole_hotKey.png|right|400px]]
 # Start Source Analysis. Go to '''Options &rarr; Hot Keys…'''
-# In the dialog, scroll down the list of commands until you get to '''Moving dipole'''.
+# In the dialog, scroll down the list of commands until you get to '''Moving Dipole...'''.
-# Click into the empty field beside it and press a key combination that should invoke this fit, e.g. Ctrl+Shift+I.
+# Click into the empty field beside it and press a key combination that should invoke this fit, e.g. Ctrl+Shift+I (please check that the information row at the bottom of the dialog reports no conflicts).
-#: (Please check that the information row at the bottom of the dialog reports no conflicts).
 # Leave with '''OK'''.
-# Define a fit interval. Press the key combination. The fit starts and is displayed as a video.
+# Define a fit interval.
 === 2. Use the batch commands to create moving dipoles ===

@@ Line 5: / Line 5: @@
 }}
-== Moving Dipoles: We don’t believe in them but we can do them ==
+=== Moving Dipoles: We don’t believe in them but we can do them ===
 BESA keeps getting asked about moving dipole fitting. Now, this is a topic that has the potential for a long ideological discussion. BESA Research originally (and still) proposed the use of the spatio-temporal dipole model, where each dipole is stationary, and has an activity that varies over time – in conjunction with the physiological activation of cortical patches in the brain. Several dipoles can be active at any given time.
@@ Line 13: / Line 14: @@
 One way or another, the customers should be allowed to make up their own minds about the best strategy to arrive at a solution in source analysis. For this reason, it is possible in BESA Research to invoke the Moving dipole (and has been for a long time). Users can achieve it in either of the following ways:
 <ol>
-<li>Define a hot key for the moving dipole fit. To do this:</li>
+<li>In the review window, select '''Process &rarr; Batch Scripts'''. Click on the '''Batch''' tab</li>
-<ul>
-<li>Start Source Analysis. Go to “Options -> Hot Keys…”</li>
-<li>In the dialog, scroll down the list of commands until you get to “Moving dipole”. Click into the empty field beside it and press a key combination that should invoke this fit, e.g. Shift+Ctrl+I. (Please check that the information row at the bopreom of the dialog reports no conflicts). Leave with OK.</li>
-<li>Define a fit interval. Press the key combination. The fit starts and is displayed as a video.</li>
-</ul>
-<li>Use the batch commands to create moving dipoles. This requires a bit of manual tweaking, but offers a rewarding visualization at the end. To do this:</li>
-<ul>
-<li>In the review window, select “Process -> Batch Scripts”. Click on the “Batch” tab</li>
 <li>Prepare data for fipreing: Add commands to filter data, mark the segment and send it to Source Analysis, set source type to dipole, select the channel type for fipreing, set fit constraints, and set the head model. This can look like the following:</li>
 <pre>
@@ Line 53: / Line 61: @@
 SAsetOrActivateSource(6,Enable)
 SAdisplayMRI(On,SmallWindow,MultipleHeads)</pre>
 </ol>
 You can run the finished batch with the option “Single step mode” first in order to check that everything works as it should.
-The example below shows a moving dipole fit done by batch for an epileptic spike between -15ms and +15ms. Note that there is additional oscillatory activity which is not explained by these single dipole fits - hence the arguing for a spatio-temporal model.
+The example below shows a moving dipole fit done by batch for an epileptic spike between -15 ms and +15 ms. Note that there is additional oscillatory activity which is not explained by these single dipole fits - hence the arguing for a spatio-temporal model.
 [[File:MovingDipole2.png|750px|left|Figure 1 Example for moving dipole fit]]
 [[Category:Source Analysis]]

@@ Line 14: / Line 14: @@
 One way or another, the customers should be allowed to make up their own minds about the best strategy to arrive at a solution in source analysis. For this reason, it is possible in BESA Research to invoke the Moving dipole (and has been for a long time). Users can achieve it in either of the following ways:
-#Define a hot key for the moving dipole fit. To do this:
+<ol>
-#*Start Source Analysis. Go to “Options -> Hot Keys…”
+<li>Define a hot key for the moving dipole fit. To do this:</li>
-#*In the dialog, scroll down the list of commands until you get to “Moving dipole”. Click into the empty field beside it and press a key combination that should invoke this fit, e.g. Shift+Ctrl+I. (Please check that the information row at the bottom of the dialog reports no conflicts). Leave with OK.
+<ul>
-#*Define a fit interval. Press the key combination. The fit starts and is displayed as a video.
+<li>Start Source Analysis. Go to “Options -> Hot Keys…”</li>
-#Use the batch commands to create moving dipoles. This requires a bit of manual tweaking, but offers a rewarding visualization at the end. To do this:
+<li>In the dialog, scroll down the list of commands until you get to “Moving dipole”. Click into the empty field beside it and press a key combination that should invoke this fit, e.g. Shift+Ctrl+I. (Please check that the information row at the bopreom of the dialog reports no conflicts). Leave with OK.</li>
-#*In the review window, select “Process -> Batch Scripts”. Click on the “Batch” tab.
+<li>Define a fit interval. Press the key combination. The fit starts and is displayed as a video.</li>
-#*Prepare data for fitting: Add commands to filter data, mark the segment and send it to Source Analysis, set source type to dipole, select the channel type for fitting, set fit constraints, and set the head model. This can look like the following:
+</ul>
-<tt>
+<li>Use the batch commands to create moving dipoles. This requires a bit of manual tweaking, but offers a rewarding visualization at the end. To do this:</li>
 MAINFilter(LC:5.00-6dB-f,HC:35.00-12dB-z,NF:off,BP:off)
 MAINMarkBlock(WholeSegment,-,1,SendToSA)
@@ Line 29: / Line 33: @@
 SAaddSource(Dipole,UnitSphere,0.000,0.000,0.400,0.000,0.000,0.000,-,0,FitEnable,FitDisableOtherSources)
 SAsetOrActivateSource(1,Disable)
-Pause(Please check/select head model to match age)
+Pause(Please check/select head model to match age)</pre>
-</tt>
+<li>Now go through the latencies where a dipole should be fipreed. For each latency, create the source, set a cursor, run the fit, de-activate the source, and add a new source. For the very first source, we don’t have to create it because this has already been done – it just needs to be activated. So, for example, starting with a latency of -15 ms:</li>
-#*Now go through the latencies where a dipole should be fitted. For each latency, create the source, set a cursor, run the fit, de-activate the source, and add a new source. For the very first source, we don’t have to create it because this has already been done – it just needs to be activated. So, for example, starting with a latency of -15 ms:
+<pre>
-<tt>
 SAsetOrActivateSource(1,Enable)
 SAsetCursor(-15,NoDrawMap)
 SAfit(Sources)
-SAsetOrActivateSource(Last,Off)
+SAsetOrActivateSource(Last,Off)</pre>
-</tt>
+<li>Repeat this for the other latencies; e.g. if the sampling rate was 3 ms, the next one is:</li>
-#*Repeat this for the other latencies; e.g. if the sampling rate was 3 ms, the next one is:
+<pre>
-<tt>
 SAaddSource(Dipole,UnitSphere,0.000,0.000,0.000,0.000,0.000,1.000,-,0,FitEnable,FitDisableOtherSources)
 SAsetCursor(-12,NoDrawMap)
 SAfit(Sources)
-SAsetOrActivateSource(Last,Off)
+SAsetOrActivateSource(Last,Off)</pre>
-</tt>
+<li>For sources [3 …. N], it will be easiest to save the batch file, then open in a text editor, and copy and paste the set of the previous 4 lines several times, simply replacing the latency for each set.</li>
-#*For sources [3 …. N], it will be easiest to save the batch file, then open in a text editor, and copy and paste the set of the previous 4 lines several times, simply replacing the latency for each set.
+<li>At the end, activate all sources again and show fit interval as well as the anatomy to display in the MRI - highlight one of the central dipoles (e.g. source number 6 in the example below):</li>
-#*At the end, activate all sources again and show fit interval as well as the anatomy to display in the MRI - highlight one of the central dipoles (e.g. source number 6 in the example below):
+<pre>
-<tt>
 SAsetOrActivateSource(All,On)
 SAfitInterval(-15,15,FitInterval)
 SAsetOrActivateSource(6,Enable)
-SAdisplayMRI(On,SmallWindow,MultipleHeads)
+SAdisplayMRI(On,SmallWindow,MultipleHeads)</pre>
-</tt>
+</ul>
 You can run the finished batch with the option “Single step mode” first in order to check that everything works as it should.
 The example below shows a moving dipole fit done by batch for an epileptic spike between -15ms and +15ms. Note that there is additional oscillatory activity which is not explained by these single dipole fits - hence the arguing for a spatio-temporal model.
-[[File:MovingDipole2.png|none|left|Figure 1 Example for moving dipole fit]]
+[[File:MovingDipole2.png|750px|left|Figure 1 Example for moving dipole fit]]
 [[Category:Source Analysis]]

@@ Line 56: / Line 56: @@
 The example below shows a moving dipole fit done by batch for an epileptic spike between -15ms and +15ms. Note that there is additional oscillatory activity which is not explained by these single dipole fits - hence the arguing for a spatio-temporal model.
-[[File:MovingDipole2.png|none|300px|Figure 1 Example for moving dipole fit]]
+[[File:MovingDipole2.png|none|left|Figure 1 Example for moving dipole fit]]
 [[Category:Source Analysis]]

← Older revision		Revision as of 09:17, 11 April 2016
Line 1:		Line 1:
		+	{{BESAInfobox
		+	\|title = Module information
		+	\|module = BESA Research Standard or higher
		+	\|version = 5.2 or higher
		+	}}
		+
	== Moving Dipoles: We don’t believe in them but we can do them ==		== Moving Dipoles: We don’t believe in them but we can do them ==
	BESA keeps getting asked about moving dipole fitting. Now, this is a topic that has the potential for a long ideological discussion. BESA Research originally (and still) proposed the use of the spatio-temporal dipole model, where each dipole is stationary, and has an activity that varies over time – in conjunction with the physiological activation of cortical patches in the brain. Several dipoles can be active at any given time.		BESA keeps getting asked about moving dipole fitting. Now, this is a topic that has the potential for a long ideological discussion. BESA Research originally (and still) proposed the use of the spatio-temporal dipole model, where each dipole is stationary, and has an activity that varies over time – in conjunction with the physiological activation of cortical patches in the brain. Several dipoles can be active at any given time.

← Older revision		Revision as of 12:50, 8 April 2016
Line 51:		Line 51:
	The example below shows a moving dipole fit done by batch for an epileptic spike between -15ms and +15ms. Note that there is additional oscillatory activity which is not explained by these single dipole fits - hence the arguing for a spatio-temporal model.		The example below shows a moving dipole fit done by batch for an epileptic spike between -15ms and +15ms. Note that there is additional oscillatory activity which is not explained by these single dipole fits - hence the arguing for a spatio-temporal model.
	[[File:MovingDipole2.png\|none\|300px\|Figure 1 Example for moving dipole fit]]		[[File:MovingDipole2.png\|none\|300px\|Figure 1 Example for moving dipole fit]]
		+
		+	[[Category:Source Analysis]]

← Older revision		Revision as of 12:48, 8 April 2016
Line 1:		Line 1:
−	== Moving Dipoles: we don’t believe in them but we can do them ==	+	== Moving Dipoles: We don’t believe in them but we can do them ==
	BESA keeps getting asked about moving dipole fitting. Now, this is a topic that has the potential for a long ideological discussion. BESA Research originally (and still) proposed the use of the spatio-temporal dipole model, where each dipole is stationary, and has an activity that varies over time – in conjunction with the physiological activation of cortical patches in the brain. Several dipoles can be active at any given time.		BESA keeps getting asked about moving dipole fitting. Now, this is a topic that has the potential for a long ideological discussion. BESA Research originally (and still) proposed the use of the spatio-temporal dipole model, where each dipole is stationary, and has an activity that varies over time – in conjunction with the physiological activation of cortical patches in the brain. Several dipoles can be active at any given time.