A network of myenteric interstitial cells of Cajal in the corpus of the stomach continuously generates an electrical slow wave, which is transmitted to the brain chiefly by vagal afferents. In our study, we combined resting-state functional MRI (rsfMRI) with concurrent surface electrogastrography (EGG) to investigate whether fluctuations in brain resting state networks (RSNs) might be synchronized with the stomach. Here we share our resources (e.g., concurrently acquired EGG and preprocessed rsfMRI data set, and the code used to perform statistical analysis) associated with the study.

To generate the data set, an individual participant underwent 22 scanning sessions; in each, two 15-minute runs of concurrent EGG and rsfMRI data were acquired. EGG data from three sessions had weak gastric signals and were excluded; the other 19 sessions yielded a total of 9.5 hours of data.

(Please see the MediaWiki page for detailed information regarding the data acquisition parameters.)