Behavioural and group fMRI data from young healthy participants engaged in a bimanual coordination task with concurrent dual-site beta M1 tACS

The dataset includes the raw behavioural data, unthresholded group fMRI maps, analysis scripts for the behavioural and fMRI data as well as the data and scripts needed to create the figures of the following manuscript: Dual-site beta transcranial alternating current stimulation during a bimanual coordination task modulates functional connectivity between motor areas  (https://www.biorxiv.org/content/10.1101/2025.04.04.647211v1).In this study a group of 17 young healthy participants performed a bimanual coordination task in a concurrent tACS-fMRI design. While performing a slow and fast version of the task with force grip sensors in sync with metronome sounds, participants received one of three types of beta (20 Hz) dual-site tACS over both M1s at 4mA (peak-to-peak): in-phase (IP), jittered-phase (JP) or sham (SH), in a within-subject, repeated measures design. Each of the three task runs consisted of 16 blocks (8 fast and 8 slow) interleaved with rest blocks to allow for an fMRI block design. We measured forces applied to the force grip sensors throughout all task runs, during task and rest blocks. Further details can be found in the manuscript.FormatsRaw behavioural data in .txt and .matProcessed behavioural data and data for figures in .csvUnthresholded group MR maps in .nii.gzR scripts in .RMatlab scripts in .mMR analyses in .sh, .fsf and .txt files, description in .pdfOverview file for data in .xlsxBehavioural analyses and figures were computed on a Mac Book Pro (OS Sequoia), with Matlab 2022a, and RStudio 2024.12.0 with R version 4.3.1. MR analyses were done in FSL 6.0 on the FMRIB computing cluster.