IMAGEN Proposal and
Data Access Policy
To gain access to IMAGEN Data all researchers must submit a proposal. This is circulated to the IMAGEN Consortium for them to provide feedback on the proposal. This is to ensure there are no overlapping proposals.
You will need to include a member of the IMAGEN Consortium as a PI. A list of potential PIs can be found in the corresponding authorship list. This means you will need to contact a PI to ask if they are willing to act as the PI on your proposal. Once a proposal is formalized, please send it to ponscentre@charite.de with the chosen PI in cc.
The following Links lead to an instruction how a Proposal has to be written and the Proposal itself and also the Data Access Policy.
Data Access and Software
After proposal is accepted, data is accessible through SFTP under sftp://imagen2.cea.fr/data/.
We have written specific software and scripts for data collection, quality control, processing and publishing. We have published and maintain most of recent software in GitHub.
We have stored in Github:
the Python scripts that download from Delosis servers and de-identify data,
the R script that calls the Delosis R library for Psytools data derivation.
FU2/FU3 MRI protocols,
scripts and basic documentation for imaging data pre-processing.
The IMAGEN Dataset
The IMAGEN database contains data collected and processed by the Imagen consortium from over 2000 adolescents and their parents. It includes demographics, neuropsychological assessments, medical questionnaires, MR neuroimaging and genomics. Data have been collected over a period of 10 years in 8 recruitment centers and over 4 successive time points: baseline at age 14 (BL), follow-up 1 at age 16 (FU1), follow-up 2 at age 19 (FU2) and follow-up 3 at age 23 (FU3).
DOI: https://doi.org/10.25720/p1ma-genq
Please click on the button below to download a list of the instruments and questionnaires used at each timepoint.
Basic demographics variables
Basic demographic variables are scattered across questionnaires and other tabular data.
Since this is a longitudinal study, age cannot be associated to subjects but to specific assessments. Age in days at assessment is available in most questionnaires.
The sex of subjects is also scattered in a handful variables across tabular data. In some cases these variables are inconsistent. We have investigated these cases with precious help from recruitment centres and created a reference table (available from sftp://imagen2.cea.fr/data/imagen/2.7/FU3/participants/).
Note that participant 000015439849 moved between BL and FU2, hence data from FU2 and on have been acquired in a different acquisition centre than the initial inclusion centre.