Institute of Neuroscience

The ION dataset includes anatomical, field map, and fMRI data from 8 monkeys.

Usage Agreement

Creative Commons – Attribution-NonCommercial Share Alike (CC-BY-NC-SA)- Standard INDI data sharing policy. Prohibits use of the data for commercial purposes.


Macaca mulatta and Macaca fascicularis

Scanner Specifications

Sample Description

Click here for the full sample description (.csv)

Scan Procedures and Parameters

Ethics approval: All experimental procedures for nonhuman primate research were approved by the Institutional Animal Care and Use Committee in the Institute of Neuroscience and by the Biomedical Research Ethics Committee, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, and conformed to National Institutes of Health guidelines for the humane care and use of laboratory animals.

Animal care and housing: Animals were housed in single cage

Any applicable training: none

Scanning preparations

Anesthesia procedures: Anesthesia of the animals was inducted with an intramuscular injection of a cocktail of dexmedetomidine (18 - 30 µg/kg) and midazolam (0.2 - 0.3 mg/kg), supplemented with atropine sulfate (0.05 mg/kg). After intubation, anesthesia was maintained using the lowest possible concentration of isoflurane gas via a MRI-compatible ventilator.

Time between anesthesia and scanning: Scanning lasted about 1.5 hours after induction.

Head fixation: Custom-built MRI-compatible stereotaxic frame

Position in scanner and procedure used: Sphinx position

Contrast agent: none

During scanning

Physiological monitoring: Physiological parameters including blood oxygenation, ECG, rectal temperature, respiration rate and end-tidal CO2 were monitored. Oxygen saturation was kept over 95%.

Additional procedures: Animals were ventilated by a MRI-compatible ventilator. Body temperature was kept constant using hot water blanket.

Scan sequences



1Institute of Neuroscience, Key Laboratory of Primate Neurobiology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China


The authors thank Drs. Lawrence Wald, Ravi Menon, John Gore, Franz Schmitt, Renate Jerecic, Thomas Benner, Kecheng Liu, Ignacio Vallines, and Hui Liu for their generous help and contribution to the construction of our custom-tuned gradient-insert (AC88) 3T MRI facility for nonhuman primate subjects.



Click here to download the data. Users will first be prompted to log on to NITRC and will need to register with the 1000 Functional Connectomes Project website on NITRC to gain access to the PRIME-DE datasets.