fMRI - Social Delay Discounting Task (SDDT)

The fMRI - Social Delay Discounting Task measures brain activity during the Social Delay Discounting Task that measures impulse control in a social context. In the task, the child is asked first to choose between a small amount of money now or a larger amount later. Next, the child is presented with a choice between receiving a smaller amount of money for themselves immediately or a larger amount for a friend at a later time. Similarly, the child is asked to make the same decision but for a stranger instead.

The SDDT was presented on a screen that participants viewed through a mirror attached to the head coil. Functional runs of the SDDT were acquired using a T1*-weighted turbo field echo (T1TFE) sequence. To account for T1 saturation effects, the first two volumes (dummy volumes) were discarded at the beginning of the scan. During the Middle Childhood Cohort waves, the SDDT consisted of 3 runs in total, with the number of volumes varying depending on the individual participant. The volumes covered the entire brain with a field of view (FOV) measuring 220 mm in the anterior-posterior (ap) direction, 220 mm in the right-left (rl) direction, and 111.65 mm in the foot-head (fh) direction. The imaging protocol used a repetition time (TR) of 2.2 seconds, an echo time (TE) of 30 ms, and a flip angle (FA) of 80°. The data was acquired sequentially in 37 slices with a voxel size of 2.75 mm x 2.75 mm x 2.75 mm.

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Keywords
Constructs
Waves
  • Middle Childhood Cohort

  • MCC - T7
    •   C
    14.0 - 15.0 years   From 2023-04-01 to 2023-10-30
    Mode of collection MeasurementsAndTests    MRI
    Analysis unit Individual
    Instrument name fMRI during the Social Delay Discounting Task
    Measure name fMRI - Social Delay Discounting Task
    References
    Reiter, A. M. F., Moutoussis, M., Vanes, L., Kievit, R., Bullmore, E. T., Goodyer, I. M., Fonagy, P., Jones, P. B., Bullmore, E., Bullmore, E., Dolan, R., Goodyer, I., Jones, P., Hauser, T., Neufeld, S., … Dolan, R. J. (2021). Preference uncertainty accounts for developmental effects on susceptibility to peer influence in adolescence. Nature Communications, 12(1). https://doi.org/10.1038/s41467-021-23671-2
    You can also access this dataset using the API (see API Docs).