MIDUS Neuroscience Repository

MIDUS has a variety of neuroimaging and psychophysiological data for the Core and Refresher samples. This page explains which data are publicly available via the Portal and which are restricted access via the MIDUS Neuroscience Repository. Policy and guidelines for requesting access are here for the MIDUS Brain Imaging Data or the MIDUS 2 Electroencephalography (EEG) Data. Below are details about available data and links to the request forms.

Facial electromyography (EMG)

Summary eyeblink startle magnitude and electromyography of the corrugator supercilli muscle during the emotional response task are available for the MIDUS 2, 3, and Refresher 1samples and for the zygomatic major muscle for the MIDUS 3 and Refresher 1samples. These data are available via the MIDUS Colectica Portal.

Heart rate variability

Heart rate variability summary metrics from resting heart rate measured both while sitting during the Neuroscience Project's psychophysiology session as well as supine in the scanner during the neuroimaging session are available for the MIDUS 3 and Refresher 1 samples via the MIDUS Colectica Portal.

Electroencephalography (EEG)

EEG data are available for individuals who completed the MIDUS 2 Neuroscience project.

These data can be found here:

• Publicly Available - Asymmetry, individual peak alpha frequency, and power estimates are publicly available through the MIDUS Colectica Portal.
• Restricted - Raw whole brain resting EEG data in BIDS format as well as comprehensive extracted estimates of the resting EEG at individual sites are available for the MIDUS 2 sample upon approval.

Structural MRI

Structural data are available for individuals who completed the MIDUS 2, 3, or Refresher Neuroscience project and participated in the MRI session. These data can be found here:

• Publicly Available - Freesurfer-based (https://surfer.nmr.mgh.harvard.edu/) extracted values are publicly available through the MIDUS Colectica Portal for the MIDUS 3 and Refresher 1 only at this time.
• Restricted - Raw whole brain structural MRI data in BIDS format are currently available for the MIDUS 2, 3, or Refresher samples upon approval.

Functional MRI

Functional MRI data of emotional responses are available for individuals who completed the MIDUS 2, 3, or Refresher Neuroscience projects and participated in the MRI session. These data are Restricted and are available upon approval.

Perfusion MRI (Arterial spin labeling)

Raw whole brain resting perfusion MRI data are available for individuals who completed the MIDUS 2, 3, or Refresher 1 Neuroscience projects and participated in the MRI session. These data are Restricted and are available upon approval.

Diffusion MRI

Diffusion MRI measures are available for individuals who completed the MIDUS 3 or Refresher Neuroscience project and participated in the MRI session. These data can be found here:

• Publicly Available - Atlas-based extracted diffusion tensor imaging values are publicly available through the MIDUS Colectica Portal for the MIDUS 3 and Refresher 1.
• Restricted - Raw whole brain diffusion MRI data in BIDS format are currently available for the MIDUS 3 or Refresher sample upon approval.

Requesting Access

Researchers interested in requesting access to the MIDUS Brain Imaging Data or the MIDUS 2 EEG Data must complete the appropriate access request form: MIDUS Brain Imaging Data Research Plan and Data Use Agreement or MIDUS 2 EEG Data Research Plan and Data Use Agreement. The form must be filled out by the Primary Investigator and submitted using the researcher’s institutional email address along with a copy of their current CV to midus_brainimaging@aging.wisc.edu. Projects involving collaborators working at different institutions must submit a request form from each institution. Upon approval of the access request, specific instructions and login information to access the neuroscience dataset(s) will be sent to the user.