The "NYU Slow Flanker" dataset comprises data collected from 26 healthy adults (age and sex included in Slow_Flanker_age_sex.txt) while they performed a slow event-related Eriksen Flanker task.
**Please note that all data have been uploaded regardless of quality- it is up to the user to check for data quality (movement etc).

On each trial (inter-trial interval (ITI) varied between 8 s and 14 s; mean ITI=12 s),participants used one of two buttons on a response pad to indicate the direction of a central arrow in an array of 5 arrows. In congruent trials the flanking arrows pointed in the same direction as the central arrow (e.g., < < < < <), while in more demanding incongruent trials the flanking arrows pointed in the opposite direction (e.g., < < > < <). 

Subjects performed two 5-minute blocks, each containing 12 congruent and 12 incongruent trials, presented in a pseudorandom order.

Functional imaging data were acquired using a research dedicated Siemens Allegra 3.0 T scanner, with a standard Siemens head coil, located at theNYU Center for Brain Imaging.

We obtained 146 contiguous echo planar imaging (EPI) whole-brain functional
volumes (TR=2000 ms; TE=30 ms; flip angle=80, 40 slices, matrix=64x64; FOV=192 mm; acquisition voxel size=3x3x4mm) during each of the two flanker task blocks. A high-resolution T1-weighted anatomical image was also acquired using a magnetization prepared gradient echo sequence (MPRAGE, TR=2500 ms; TE=
3.93 ms; TI=900 ms; flip angle=8; 176 slices, FOV=256 mm).

Behavioral data is organized in 4 conditions, in subXXX/behav/taskXXX_runXXX/:      # added by LNK on Apr 2010:
cond001 - congruent_correct
cond002 - congruent_incorrect
cond003 - incongruent_correct
cond004 - incongruent_incorrect


These data have been published in the following papers. Please cite one of these papers if you use these data.

Kelly AMC, Uddin LQ, Biswal BB, Castellanos FX, Milham MP (2008). Competition between functional brain networks mediates behavioral variability. NeuroImage. 39:527-537

Mennes M, Kelly C, Zuo XN, Di Martino A, Biswal B, Castellanos FX, Milham MP (2010). Inter-Individual Differences in Resting State Functional Connectivity Predict Task-Induced BOLD Activity. NeuroImage. 50(4):1690-701


Mennes M, Zuo XN, Kelly C, Di Martino A, Zang YF, Biswal B, Castellanos FX, Milham MP (In Press). Linking Inter-Individual Differences in Neural Activation and Behavior to Intrinsic Brain Dynamics. NeuroImage