Hi Markus,
yes, Mauro is correct. Time always starts at zero, regardless whether time
units are scans or seconds.
Volkmar
On Thu, 23 Aug 2007, PESENTI Mauro wrote:
> LLN, le 23/08/07
>
> Hi Markus!
>
> I'm not using SPM5 so I may be wrong, but I guess that it is because the
> onset vectors must start at 0, not 1.
>
> Hope this helps,
>
> Mauro.
>
>
>> dear list.
>>
>> i have a basic question about the model specification of the auditory data
>> in spm5 manual (page 160).
>> as far as i understood, the rest and active condition include 6 scans each,
>> starting with the rest condition. so i would assume that scan 1 to 6 are
>> assigned to the rest condition, scan 7 to 12 to the active condition, and
>> so on. but why are the onsets of the active condition defined as [6
>> 18 ...]? should it not be as [7 19 ...]? am i missing something?
>>
>> thanks
>> markus
>
>
>
--
Volkmar Glauche
-
Department of Neurology [log in to unmask]
Universitaetsklinikum Freiburg Phone 49(0)761-270-5331
Breisacher Str. 64 Fax 49(0)761-270-5416
79106 Freiburg http://fbi.uniklinik-freiburg.de/
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