>
>
> This is my first analysis with FSL, and would appreciate input on
> our model setup.
>
> We are analyzing the results of a stop signal task (SST) (from
> Rubia et al.).
>
> There are 196 volumes, TR 1.8. During each TR the subject
> 1. responds to a stimulus with either a left or right button press
> (GO response, 156 trials)
> 2. is signaled to withhold a response but does not inhibit (NoStop
> response, about 20 trials)
> 3. is signaled to withhold a response and is successful in doing
> so (Stop response, about 20 trials)
> Each NoStop or Stop response is separated by 4-6 Go responses.
>
> If the subject responds prematurely or with the wrong button, the
> response is discarded. In addition, 10 extra volumes at the end
> are discarded.
>
> I am using a highpass filter of 9 sec.
>
> I am using the GO response as the baseline, so is not included as
> an EV.
>
> EV1 is NoStop
> EV2 is Stop
> EV3 is Discard
>
> I have attached the three textfiles (3 column entries) used to
> describe these 3 EVs.
>
> Three contrasts are assessed:
> NoStop 1 0 0
> Stop 0 1 0
> NoStop - Stop 1 -1 0
>
> Thanks.
>
> Bryon
7.2 1.8 1
32.4 1.8 1
39.6 1.8 1
64.8 1.8 1
82.8 1.8 1
106.2 1.8 1
124.2 1.8 1
149.4 1.8 1
160.2 1.8 1
167.4 1.8 1
210.6 1.8 1
237.6 1.8 1
255.6 1.8 1
264.6 1.8 1
273.6 1.8 1
280.8 1.8 1
307.8 1.8 1
316.8 1.8 1
324 1.8 1
14.4 1.8 1
25.2 1.8 1
48.6 1.8 1
55.8 1.8 1
75.6 1.8 1
90 1.8 1
115.2 1.8 1
135 1.8 1
142.2 1.8 1
176.4 1.8 1
185.4 1.8 1
194.4 1.8 1
203.4 1.8 1
221.4 1.8 1
230.4 1.8 1
248.4 1.8 1
291.6 1.8 1
300.6 1.8 1
334.8 1.8 1
343.8 1.8 1
18 1.8 1
46.8 1.8 1
99 1.8 1
131.4 1.8 1
325.8 18 1
>
>
>
>
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