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help > Ann Arbor (Monk, C.S./Seidler, R.D./Peltier)
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Mar 6, 2012 08:03 PM | Igor M
Ann Arbor (Monk, C.S./Seidler, R.D./Peltier)
Hello all,
The Ann Arbor (a) dataset has the following description:
AnnArbor_a.tar (n = 25 [22M/3F]; ages: 13-40; TR = 1; # slices = 40; # timepoints = 295
I was wondering if there is a typo in the TR (1 second). This seems to be an unusually fast acquistion.
I located the following paper by Monk et al, and was wondering if the dataset is based on it:
The paper says that a TR of 2 seconds was used (also 40 slices, ~300 time points).
The (b) dataset is also listed as having a 1s TR.
Thanks.
IM
The Ann Arbor (a) dataset has the following description:
AnnArbor_a.tar (n = 25 [22M/3F]; ages: 13-40; TR = 1; # slices = 40; # timepoints = 295
I was wondering if there is a typo in the TR (1 second). This seems to be an unusually fast acquistion.
I located the following paper by Monk et al, and was wondering if the dataset is based on it:
Monk, C.S., Peltier, S.J., Wiggins, J.L., Weng,
S.-J., Carrasco, M., Risi, S., Lord, C.
Abnormalities of intrinsic functional connectivity in autism spectrum disorders,
(2009) NeuroImage, 47 (2), pp. 764-772.
Abnormalities of intrinsic functional connectivity in autism spectrum disorders,
(2009) NeuroImage, 47 (2), pp. 764-772.
The paper says that a TR of 2 seconds was used (also 40 slices, ~300 time points).
The (b) dataset is also listed as having a 1s TR.
Thanks.
IM
Mar 8, 2012 07:03 PM | Maarten Mennes
RE: Ann Arbor (Monk, C.S./Seidler, R.D./Peltier)
Hi Igor,
Yes, a TR of 1 with those sequence settings sounds unlikely. I will investigate and report back to you.
Thanks for your question!
Maarten
Yes, a TR of 1 with those sequence settings sounds unlikely. I will investigate and report back to you.
Thanks for your question!
Maarten
Apr 13, 2012 01:04 PM | Maarten Mennes
RE: Ann Arbor (Monk, C.S./Seidler, R.D./Peltier)
Hi Igor,
as you can see in this post: http://www.nitrc.org/forum/forum.php?thread_id=3169&forum_id=1735
you were right, the tr of 1 sec. was incorrect in the image headers and on the dataset specifications. Thank you for bringing this to our attention! We have corrected all datasets and info files accordingly.
Best,
Maarten
as you can see in this post: http://www.nitrc.org/forum/forum.php?thread_id=3169&forum_id=1735
you were right, the tr of 1 sec. was incorrect in the image headers and on the dataset specifications. Thank you for bringing this to our attention! We have corrected all datasets and info files accordingly.
Best,
Maarten