def experiments_fmri_download(self, experiment_id):
        """Download the fMRI data file associated with given experiment.

        Parameters
        ----------
        experiment_id : string
            Unique experiment identifier

        Returns
        -------
        FileInfo
            Information about fMRI file on disk or None if experiment is
            unknown or has no fMRI data associated with it
        """
        # Get experiment fMRI to ensure that it exists
        fmri = self.experiments_fmri_get(experiment_id)
        if fmri is None:
            return None
        # Return information about fmRI data file
        return FileInfo(
            fmri.upload_file,
            fmri.properties[datastore.PROPERTY_MIMETYPE],
            fmri.properties[datastore.PROPERTY_FILENAME]
        )
Download the fMRI data file associated with given experiment.

        Parameters
        ----------
        experiment_id : string
            Unique experiment identifier

        Returns
        -------
        FileInfo
            Information about fMRI file on disk or None if experiment is
            unknown or has no fMRI data associated with it