[Freesurfer] Variation in Null duration

2015-05-19 Thread Dan Goldman
Hello, I have a general design question about variation in the duration of null intervals. After running optseq with tnullmin set to 4 and tnullmax set to 10, the null intervals were nearly all 4 seconds in duration, with a few of 5 seconds. Is it generally a problem to have mostly identical null

Re: [Freesurfer] Optseq2: efficiency and vrf

2015-04-21 Thread Dan Goldman
Mon, Apr 20, 2015 at 10:49 PM, Douglas Greve wrote: > > > On 4/20/15 5:45 PM, Dan Goldman wrote: > > Hello, > I have a question re: calculations of efficiency and vrf in optseq2. > We are running two tasks. One is a reasoning tasks, with trial lengths of > 12 seconds.

[Freesurfer] Optseq2: efficiency and vrf

2015-04-20 Thread Dan Goldman
Hello, I have a question re: calculations of efficiency and vrf in optseq2. We are running two tasks. One is a reasoning tasks, with trial lengths of 12 seconds. The other is an embedded figures task with trial lengths of 10 seconds. For both tasks, we have set a minimum ISI of 4 seconds and a maxi

Re: [Freesurfer] Optseq2 question- duration of final event

2015-04-20 Thread Dan Goldman
It seems that I am unable to run the file that you sent on a mac- is it a different version from the one available for MacOSX here? https://surfer.nmr.mgh.harvard.edu/optseq/ On Mon, Apr 20, 2015 at 2:53 PM, Dan Goldman wrote: > Nevermind, I got it to work! Thanks for your help. > &g

Re: [Freesurfer] Optseq2 question- duration of final event

2015-04-20 Thread Dan Goldman
Nevermind, I got it to work! Thanks for your help. On Mon, Apr 20, 2015 at 2:51 PM, Dan Goldman wrote: > When I try that I get the error "cannot execute binary file". > > On Mon, Apr 20, 2015 at 2:46 PM, Douglas Greve > wrote: > >> chmod a+x optseq2 >>

Re: [Freesurfer] Optseq2 question- duration of final event

2015-04-20 Thread Dan Goldman
When I try that I get the error "cannot execute binary file". On Mon, Apr 20, 2015 at 2:46 PM, Douglas Greve wrote: > chmod a+x optseq2 > > > > > On 4/20/15 2:13 PM, Dan Goldman wrote: > > I am having some trouble using this version- when I try to use it in

Re: [Freesurfer] Optseq2 question- duration of final event

2015-04-20 Thread Dan Goldman
t recent version, the one that will be part of FS version > 6. > > > On 4/20/15 1:40 PM, Dan Goldman wrote: > > Hi Douglas, > > Thank you for the quick response. > Could you tell me which version of optseq this is? Are there multiple > versions of optseq2? > > On

Re: [Freesurfer] Optseq2 question- duration of final event

2015-04-20 Thread Dan Goldman
oing/flat/greve/optseq2 > > I changed some things that might fix this problem. I ran the command line > below with it, and it gave reasonable results for the last null. > > > On 4/20/15 1:22 PM, Dan Goldman wrote: > > Hello, > > I am having a problem with optseq2,

[Freesurfer] Optseq2 question- duration of final event

2015-04-20 Thread Dan Goldman
Hello, I am having a problem with optseq2, where the final NULL event is given a much longer duration than the rest of the events. This happens even if I set tnullmax to a lower number- for example, I set tnullmax to 10 seconds, and the final interval came out at 48 seconds. Do you know how to res