ALT="connectivity-based classification of thalamus">
ALT="connectivity-based classification of thalamus">
<b>probtrack.log</b> - a text record of the command that was run.<br>
<br><b>probtrack.log</b> - a text record of the command that was run.<br>
<b>fdt.log</b> - a log of the setup of the FDT GUI when the analysis
<b>fdt.log</b> - a log of the setup of the FDT GUI when the analysis
was run. To recover this GUI setup, type <code>Fdt fdt.log</code>
was run. To recover this GUI setup, type <code>Fdt fdt.log</code>
<br>A single volume for each target mask, named <b>seeds_to_{target}</b> where
<br>A single volume for each target mask, named <b>seeds_to_{target}</b> where
...
@@ -250,7 +248,7 @@ For all modes in probtrack, the user is able to change the setting of certain
...
@@ -250,7 +248,7 @@ For all modes in probtrack, the user is able to change the setting of certain
parameters by clicking the <b>options</b> tab.
parameters by clicking the <b>options</b> tab.
<p><b>Number of samples</b> (default 5000): This determines the number of individual
<p><b>Number of samples</b> (default 5000): This determines the number of individual
pathways (or samples) that are drawn through the probability distrubutions on
pathways (or samples) that are drawn through the probability distributions on
principle fibre direction (see <ahref="http://www.fmrib.ox.ac.uk/analysis/techrep/tr03tb1/tr03tb1/"> appendix </a>for more details on the modelling and
principle fibre direction (see <ahref="http://www.fmrib.ox.ac.uk/analysis/techrep/tr03tb1/tr03tb1/"> appendix </a>for more details on the modelling and
tractography methods). By default this is set to 5000 as we are confident
tractography methods). By default this is set to 5000 as we are confident
that convergence is reached with this number of samples. However, reducing
that convergence is reached with this number of samples. However, reducing
...
@@ -271,10 +269,9 @@ information to screen while it is running.
...
@@ -271,10 +269,9 @@ information to screen while it is running.
-i.e paths that travel to a point where they have already been.
-i.e paths that travel to a point where they have already been.
<p><h4>Advanced options:</h4>
<p><h4>Advanced options:</h4>
Clicking the triangle reveals some further options:
<p><b>Use modified Euler streamlining:</b> Use modified euler
<p><b>Use modified Euler streamlining:</b> Use modified Euler
integration as opposed to simple euler for computing probabilistic
integration as opposed to simple Euler for computing probabilistic
streamlines. More accurate but slower.
streamlines. More accurate but slower.
<p><b>Maximum number of steps</b> (default 2000): By default, samples are terminated
<p><b>Maximum number of steps</b> (default 2000): By default, samples are terminated
...
@@ -284,4 +281,4 @@ corresponds to a distance of 1m. These values can be adjusted if required.
...
@@ -284,4 +281,4 @@ corresponds to a distance of 1m. These values can be adjusted if required.
<p><b>Step length</b> (default 0.5mm): This determines the length of each step. This
<p><b>Step length</b> (default 0.5mm): This determines the length of each step. This
setting may be adjusted from default e.g., depending on the voxel size being
setting may be adjusted from default e.g., depending on the voxel size being
used, or if tracking is being performed on different sized brains
used, or if tracking is being performed on different sized brains