Review - Revision history

Vibhin at 11:07, 5 May 2021

2021-05-05T11:07:01Z

Harald: /* Events and Tags */

2021-05-04T10:42:08Z

‎Events and Tags

Harald: /* Scaling */

2021-05-04T10:00:26Z

‎Scaling

Harald: /* Scaling */

2021-05-04T09:55:47Z

‎Scaling

Harald: /* Additional Channels */

2021-05-04T09:54:10Z

‎Additional Channels

Harald: /* Source montages */

2021-05-04T09:53:12Z

‎Source montages

Harald: /* Source montages */

2021-05-04T09:51:53Z

‎Source montages

Harald: /* Events and Tags */

2021-05-04T09:43:55Z

‎Events and Tags

Harald: /* Events and Tags */

2021-05-04T09:38:17Z

‎Events and Tags

Jaehyun: /* Source montages */

2019-04-02T15:13:28Z

‎Source montages

@@ Line 2: / Line 2: @@
 |title = Module information
 |module = BESA Research Basic or higher
-|version = 6.1 or higher
+|version = BESA Research 6.1 or higher
 }}

@@ Line 189: / Line 189: @@
 You can also use the
-<span title="Outside the average buffer view, the numeric keys can be used to define tags if a cursor is set: 1-5: Set a tag of type 1-5. 6: Set a comment. 7: Set artifact epoch. 8: Set named epoch. ">'''keyboard shortcuts'''</span>
+<span title="Outside the average buffer view, the numeric keys can be used to define tags if a cursor is set: 1-5: Set a tag of type 1-5. 6: Set a comment. 7: Set artifact epoch. 8: Set named epoch. ">'''<u>keyboard shortcuts</u>'''</span>
 to set any event.

@@ Line 615: / Line 615: @@
 [[Image:Review (11).gif]]
-For each channel group, there are two controls at the right side of the window. The upper one controls the subset of channels which is displayed, the lower one controls the scaling. To select a subset of a channel group for display, click on the upper of the two buttons. It shows the number of channels which are currently shown, and the total number of channels in that channel group (e.g. Scp, 32/32). In the dialog box that appears, you can make a fast selection using one of the buttons, or make a precise selection using the rulers.
+For each channel group, there are two controls at the right side of the window. The upper one controls the subset of channels which is displayed, the lower one controls the scaling. To select a subset of a channel group for display, click on the upper of the two buttons. It shows the number of channels which are currently shown, and the total number of channels in that channel group (e.g. Scp, 31/31). In the dialog box that appears, you can make a fast selection using one of the buttons, or make a precise selection using the rulers.
-The lower of the two buttons for each channel group controls the amplitude scaling. The scaling bar between the buttons shows the scale of the current value, which is shown on the button. To change, for example, the scaling of the EEG channels to 100 µV, click on the lower button of the '<span style="color:#3366ff;">'''Scp'''</span>' channel group, and select 100 µV in the dialog box that appears.
+The lower of the two buttons for each channel group controls the amplitude scaling. The scaling bar between the buttons shows the scale of the current value, which is shown on the button. The "+" and "-" signs indicate waveforms display polarity that can be changed using the ''View'' setting: ''Show Negativity Up''. Note that by default this setting is enabled and if it is disabled the signs are displayed in red color.
 For more details about timing, scaling and channel selection controls see the online help chapter <span style="color:#00000a;">''"Review / Reference / Controls / Timing, Scaling, and Channel Selection".''</span>

← Older revision		Revision as of 09:55, 4 May 2021
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	[[Image:Review (9).gif]]		[[Image:Review (9).gif]]

−	The displayed time can be scaled by clicking the Timing button at the bottom right of the display. The button shows the time interval displayed on the screen. Pressing the button opens the Timing dialog box where epochs between 0.1 s and 60 s can be selected.	+	The displayed time can be scaled by clicking the Timing button at the bottom right of the display. The button shows the time interval displayed on the screen. Pressing the button opens the Timing dialog box where epochs between 0.1 s and 60 s can be selected. Using the slider in the dialog, also longer epochs up to 1 hour are possible (depending on sampling rate).

@@ Line 517: / Line 517: @@
 A set of additional channels can be displayed along with the current montage channels at the bottom of the screen. This is useful, for example, for displaying ECG and other polygraphic channels, and for comparing depth channels with the scalp EEG. Additional channels may be individually filtered (see online help chapter "''Review / Reference /Menus / Filters / Polygraphic / Additional Chns''") and scaled.
-BESA Research ships with a predefined set of additional channel montages which can be selected from the dropdown menu. The corresponding files are stored in the folder ''Montages\AdditionalChannels''. Note that additional channel montages are only available if the labels of the (traditional) additional channels are available or if the (virtual) additional channels can be calculated for the current file.
+BESA Research ships with a predefined set of additional channel montages which can be selected from the drop-down menu. The corresponding files are stored in the folder ''Montages\AdditionalChannels''. Note that additional channel montages are only available if the labels of the (traditional) additional channels are available or if the (virtual) additional channels can be calculated for the current file.
 A detailed description of the predefined additional channel montages is given in the section Standard Montages in the help chapter "''Montage Editor''".
@@ Line 526: / Line 526: @@
 Note that this menu can also be conveniently reached from the<span style="color:#3366ff;">''' Add'''</span> button in the upper right corner of the main window or by a right mouse click on the label of an additional channel.
 === Options ===

@@ Line 449: / Line 449: @@
 '''25_regional''' ''(requires BESA Research 7.1 or higher)''
 Source montages located in subfolder 25_regional are the sub selection of the 25r montage where source are limited only to fronto-central areas (25F), parieto-occipital areas (25P) and temporal areas (25T). In addition, the regional sources were converted to single dipoles (so for every regional source in 25r there are 3 corresponding sources – i.e. Fp1r, Fp1v and Fp1h in 25F correspond to Fp1 in 25r montage).
 '''Atlas Montages''' ''(requires BESA Research 7.1 or higher)''
 Atlas-based montages are available for any dataset (with number of channels higher than 12).
 '''Evoked Potentials'''

@@ Line 416: / Line 416: @@
-'''25s''' ''(requires Besa Research 7.0 or higher)''
+'''25r and 25s''' ''(requires BESA Research 7.1 or higher)''
-<div style="margin-left:1.55cm;margin-right:0cm;">The 25s source montage is based on sources below the standard 25 electrodes of the IFCN (International Federation of Clinical Neurophysiology). The sequence of reasonable compromise between transversal and longitudinal arrangements while an optimal separation of the major regions, i.e. frontal, central, temporal and parietal-occipital, has been achieved. At the same time, easy hemispheric comparison has been enabled.</div>
+<div style="margin-left:1.55cm;margin-right:0cm;">The 25r and 25s source montages are based on sources below the standard 25 electrodes of the IFCN (International Federation of Clinical Neurophysiology). The sequence of channels is a reasonable compromise between transversal and longitudinal arrangements while an optimal separation of the major regions, i.e. frontal, central, temporal and parietal-occipital, has been achieved. At the same time, easy hemispheric comparison has been enabled.
 '''BR_Brain Regions'''
@@ Line 443: / Line 447: @@
 <div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the activities of four different aspects of the temporal lobe bilaterally in the first 8 dipole traces. There are 4 equivalent dipole sources in each temporal lobe to reveal temporal-basal, polar, antero-lateral and postero-lateral source activities. The basal and polar sources are oriented tangentially, the lateral sources radially. The montage TR_Temporal Region separates these 4 aspects of the temporal lobe from the source currents in the other 11 regions irrespective of their orientation.</div>
 '''Evoked Potentials'''
@@ Line 451: / Line 461: @@
 <div style="margin-left:1.55cm;margin-right:0cm;">Source montages have been provided which cover the relevant brain regions involved during resting state.</div>

← Older revision		Revision as of 09:38, 4 May 2021
Line 187:		Line 187:

	Epochs and artifacts are defined when a block has been marked by dragging over a portion of the EEG and pressing the right mouse button. Left and right borders of an epoch/artifact can also be defined at single times by pressing the right mouse button and selecting epoch or artifact. You can page and terminate the pending epoch/artifact by right clicking at another time to mark longer segments.		Epochs and artifacts are defined when a block has been marked by dragging over a portion of the EEG and pressing the right mouse button. Left and right borders of an epoch/artifact can also be defined at single times by pressing the right mouse button and selecting epoch or artifact. You can page and terminate the pending epoch/artifact by right clicking at another time to mark longer segments.
		+
		+	You can also use the
		+	<span title="Outside the average buffer view, the numeric keys can be used to define tags if a cursor is set: <p/>1-5: Set a tag of type 1-5" >'''keyboard shortcuts'''</span>
		+	to set any event.

	<div><ul>		<div><ul>

@@ Line 414: / Line 414: @@
 '''25s''' ''(requires Besa Research 7.0 or higher)''
-<div style="margin-left:1.55cm;margin-right:0cm;">The 25s source montage is based on sources below the standard 25 electrodes of</div>
+<div style="margin-left:1.55cm;margin-right:0cm;">The 25s source montage is based on sources below the standard 25 electrodes of the IFCN (International Federation of Clinical Neurophysiology). The sequence of reasonable compromise between transversal and longitudinal arrangements while an optimal separation of the major regions, i.e. frontal, central, temporal and parietal-occipital, has been achieved. At the same time, easy hemispheric comparison has been enabled.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">the IFCN (International Federation of Clinical Neurophysiology). The sequence of</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">reasonable compromise between transversal and longitudinal arrangements while</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">an optimal separation of the major regions, i.e. frontal, central, temporal and parietal-</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">occipital, has been achieved. At the same time, easy hemispheric comparison has</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">been enabled.</div>
 '''BR_Brain Regions'''
-<div style="margin-left:1.55cm;margin-right:0cm;">This source montage uses a set of 15 regional sources covering lateral and midline</div>
+<div style="margin-left:1.55cm;margin-right:0cm;">This source montage uses a set of 15 regional sources covering lateral and midline frontal, central and parietal cortex, midline fronto-polar and occipito-polar cortex as well as anterior and posterior temporal lobes bilaterally. It separates the activities of the 15 different brain regions and provides for fast comparison and quantification of the different activities.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">frontal, central and parietal cortex, midline fronto-polar and occipito-polar cortex</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">as well as anterior and posterior temporal lobes bilaterally. It separates the activities</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">of the 15 different brain regions and provides for fast comparison and quantification</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">of the different activities.</div>
 '''CR_Central Region'''
-<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the radial and tangential activities of the central</div>
+<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the radial and tangential activities of the central brain region bilaterally in the first 6 dipole traces. Head schemes illustrate location and orientation of each virtual electrode. The other 13 regional sources separate the source activities arising from the other brain regions.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">brain region bilaterally in the first 6 dipole traces. Head schemes illustrate location</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">and orientation of each virtual electrode. The other 13 regional sources separate</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">the source activities arising from the other brain regions.</div>
 '''FR_Frontal Region'''
-<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the radial and tangential activities of the frontal</div>
+<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the radial and tangential activities of the frontal brain region bilaterally in the first 6 dipole traces. Head schemes illustrate location and orientation of each virtual electrode. The other 13 regional sources separate the source activities arising from the other brain regions.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">brain region bilaterally in the first 6 dipole traces. Head schemes illustrate location</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">and orientation of each virtual electrode. The other 13 regional sources separate</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">the source activities arising from the other brain regions.</div>
 '''PR_Parietal Region'''
-<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the radial and tangential activities of the parietal</div>
+<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the radial and tangential activities of the parietal brain region bilaterally in the first 6 dipole traces. Head schemes illustrate location and orientation of each virtual electrode. The other 13 regional sources separate the source activities arising from the other brain regions.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">brain region bilaterally in the first 6 dipole traces. Head schemes illustrate location</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">and orientation of each virtual electrode. The other 13 regional sources separate</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">the source activities arising from the other brain regions.</div>
 '''TA_Temporal Lobe'''
-<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the activities of four different aspects of the temporal</div>
+<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the activities of four different aspects of the temporal lobe bilaterally and largely separates them from the radial activities in the other 11 brain regions. There are 4 equivalent dipole sources in each temporal lobe to reveal temporal-basal, polar, antero-lateral and postero-lateral source activities. The basal and polar sources are oriented tangentially, the lateral sources radially. Head schemes illustrate location and orientation of each virtual electrode. The montage TA_Temporal Lobe is equivalent to the montage T-A in previous versions of BESA Research. However, the use of the TR_Temporal Region source montage is more recommended because it provides a better separation of the activities of other brain regions.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">lobe bilaterally and largely separates them from the radial activities in the other</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">11 brain regions. There are 4 equivalent dipole sources in each temporal lobe to</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">reveal temporal-basal, polar, antero-lateral and postero-lateral source activities.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">The basal and polar sources are oriented tangentially, the lateral sources radially.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">Head schemes illustrate location and orientation of each virtual electrode. </div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">The montage TA_Temporal Lobe is equivalent to the montage T-A in previous </div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">versions of BESA Research. However, the use of the TR_Temporal Region source</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">montage is more recommended because it provides a better separation of the </div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">activities of other brain regions.</div>
 '''TR_Temporal Region'''
-<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the activities of four different aspects of the temporal</div>
+<div style="margin-left:1.55cm;margin-right:0cm;">This source montage displays the activities of four different aspects of the temporal lobe bilaterally in the first 8 dipole traces. There are 4 equivalent dipole sources in each temporal lobe to reveal temporal-basal, polar, antero-lateral and postero-lateral source activities. The basal and polar sources are oriented tangentially, the lateral sources radially. The montage TR_Temporal Region separates these 4 aspects of the temporal lobe from the source currents in the other 11 regions irrespective of their orientation.</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">lobe bilaterally in the first 8 dipole traces. There are 4 equivalent dipole sources</div>
-−
-<div style="margin-left:1.55cm;margin-right:0cm;">in each temporal lobe to reveal temporal-basal, polar, antero-lateral and postero-lateral source activities. The basal and polar sources are oriented tangentially, the lateral sources radially. The montage TR_Temporal Region separates these 4 aspects of the temporal lobe from the source currents in the other 11 regions irrespective of their orientation.</div>
 '''Evoked Potentials'''
@@ Line 521: / Line 463: @@
 Use the 3D view in the Montage Editor (which can be opened using the <span style="color:#3366ff;">'''EdM'''</span>'' ''button in the control ribbon) to visualize the locations of the dipoles and regional sources in the different source montages or right click on the head symbol/channel label of a source channel to view the brain region and its orientation associated with the selected dipole channel.
-For a more detailed description of brain source montages see help chapter [[BESA_Research_Montage_Editor#Standard_Source_Montages|Montage Editor / Standard Source Montages]]].
+For a more detailed description of brain source montages see help chapter [[BESA_Research_Montage_Editor#Standard_Source_Montages|Montage Editor / Standard Source Montages]].