Stop-signal task with unconditional and conditional stopping
Subjects performed two versions of a stop signal task. In the unconditional stop-signal task, subjects are told to withhold their response whenever they hear a tone. In the conditional stop signal task, they are told to withhold their response if they hear the tone and the response is the one labeled as critical, whereas they should go ahead and respond if the response is the noncritical one.
12/20/2012: The originally posted version of this dataset was missing some onsets for task002. The newly posted version contains the full set of onsets for all conditions. If only the onsets and model info are needed, they can be obtained by downloading the updated onsets file and untarring it in the main ds008 directory.
3/7/2016: Remove sub008 due to inconsistently defined onsets.
5/22/2016: Converted to BIDS file structure
- Poldrack, R.A.
- Smith, S.
- Frank, M.
- Behrens, T.E.
- Aron, A.R.
Acknowledgements and Funding:
This work was supported by a 21st Century Science Award from the James S. McDonnell Foundation (R.A.P.) and by the United Kingdom Medical Research Council (T.E.B.). We thank David Flitney for three-dimensional rendering, Joe Devlin for helpful comments on this manuscript, and Bill Lanouette for editing assistance.
External Publication Links:Triangulating a Cognitive Control Network using Diffusion-weighted MRI and Functional MRI
3T Siemens Allegra MRI scanner
How to cite this dataset:
In addition to any citation requirements in the dataset summary please use the following to cite this dataset:
This data was obtained from the OpenfMRI database. Its accession number is ds000008
Direct Links to data:
Revision: 2.0.0 Date Set: May 22, 2016, 10:11 p.m.
Converted to BIDS format
Revision: 1.1.1 Date Set: March 7, 2016, 5:12 p.m.
Remove sub008 due to inconsistent onsets. task001/cond001 and cond004 had identical onsets. All other data remain the same. sub008 data are still available in R1.1.0 dataset.
Revision: 1.1.0 Date Set: Feb. 19, 2016, 8:59 p.m.
Updated orientation information in NIFTI headers for improved left-right determination
Revision: 1.0.1 Date Set: Dec. 20, 2012, 6:16 p.m.
The originally posted version of this dataset was missing some
onsets for task002. The newly posted version contains the full set of onsets
for all conditions. If only the onsets and model info are needed, they can be
obtained by downloading the updated onsets file and untarring it in the main
Revision: 1.0.0 Date Set: Oct. 6, 2011, 10:59 p.m.