Prolonged quasi-natural stimulation with an audio-movie

This dataset contains functional brain scans for 20 participants and a gel phantom who listened to a two-hour presentation of an audio-only version of the Hollywood feature film Forrest Gump made for a visually impaired audience (German dubbing). The complete description of this dataset, including a number of validation analyses, has been published in:

Hanke et al. (2014). A high-resolution 7-Tesla fMRI dataset from complex natural stimulation with an audio movie. Scientific Data, 1.

Two principle data modalities were acquired: Blood oxygenation level dependent (BOLD) fMRI scans, continuously capturing brain activity at a spatial resolution of 1.4 mm, and physiological recordings of heart beat and breathing. For technical validation, all measurements are also available for a full-length gel phantom scan.

Due to the high scan resolution, the brain coverage of the scans was limited. The following demo illustrates the average volume captured across participants (click on the image for interactive exploration). In addition to the raw data, BOLD scans corrected for motion and spatial distortions (see below) and group-aligned images are provided as part of the data release.

FMRI group template example image

Recordings of cardiac and respiratory trace were synchronized with the fMRI scan for precise temporal alignment. The interactive plot below shows an exemplary minute of data at 50 Hz sampling rate (actual data is sampled at 200 Hz).

Usage: Click and drag on the lower focus chart to move along the time axis. Perform temporal data averaging by specifying the length of the window (in samples) in the lower left of the plot.

Lastly, motion estimates are provided for the distortion-corrected scan to facilitate subsequent filtering or modeling. The plots below show example data from one subject for an entire movie segment (approx. 15 min).

Usage: Click and drag on the lower focus chart to move along the time axis. Perform temporal data averaging by specifying the length of the window (in samples) in the lower left of the plot.