Stop-signal anticipation task - functional MRI

Stop-signal anticipation task - functional MRI consists of a functional Magnetic Resonance Imaging (fMRI) scan that was acquired while subjects performed the Stop-signal anticipation (inhibition) experiment. The task aims to measure performance and brain activity during actual stopping as well as during the anticipation of stopping. Trials begin with the presentation of a cue (0, * or **), representing the stop-signal probability (0, 22 and 33% respectively). Permanently visible are three horizontal white lines, and the goal is to stop a rising bar as close to the middle line as possible (target) by pressing a button, but refrain from pressing the button when the bar stops on its own (stop signal).

The fMRI sequence used the following parameters: SENSE coil; parallel imaging, sensefactor 1.8; T2* weighted scan; Timeseries 595 scans, single scan duration 1 sec; Scan orientation sagittal; 64x64 acquisition matrix; 51 slices; multiband factor 3; FOV = 220 mm; 2.5 mm isotropic voxels; TR/TE 1000/25. Files are in classic DICOM format.

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Keywords
Constructs
Waves
  • Child and Adolescent

  • 9 years
  •   C
    8.0 - 10.0 years   From 2016-03-14 to 2020-04-14

  • 12 years
  •   C
    11.0 - 16.0 years   From 2019-07-04 to 2022-12-01

    Mode of collection MeasurementsAndTests    MRI
    Analysis unit Individual
    Instrument name Functional MRI Inhibition experiment scan
    Measure name Functional MRI Inhibition experiment scan
    References
    You can also access this dataset using the API (see API Docs).