Dear Prof Douglas,
Thanks for your response.
I managed to do the following:
optseq2 --ntp 140 --tr 3 --padwin 0 12 3 --ev ev15 --ev ev30 --ev ev45 --nkeep 3 --o trial --nsearch 10000
Now what I really want to do is to make the ISI 7 seconds + or - 1.5 seconds. I am not sure how I should use the percentage option if this is what I should change plus the ISI time?
I hope this clarifies it more
Regards,
AS
On 10 Jun 2013, at 16:21, Douglas N Greve greve@nmr.mgh.harvard.edu wrote:
Hi, can you at least come up with an optseq2 command line that I could then help you with? There are lots of examples on the web page. You should be able to get to a point where you have an error. thanks doug
On 06/10/2013 05:14 AM, fMRI wrote:
Hello all,
This is my first question in this list and it is about OptSeq2.
I am nee to this command.
In brief, I wish to insert the following but Some of them I could not handle it:
My experiment has three conditions although I will later specify them as one condition:
Moving hand at three different target level ( say 10 20 30). Then I will model them as a one condition and enter the parametric response as a first order polynomial effects.
My design will have two columns : main effect of moving hand and the 1 order.
My contrast will be like this [1 0; 0 1]
This is what I would like to optimize using OptSeq2:
Event design
- ISI 6 seconds + or - 1.5 seconds ( I could not do this
- TR 3
- volumes 150
- 45 hand movement; 15 at each target level ( I could not do this )
- each movement lasts for 3 seconds
I am not sure whether I should use null events or the Period between movement is enough.
Also my main aim is to optimize the best design in terms of detection.
Please any guide or help
Thanks
AS
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