MNI space
Pronunciation: em-en-eye space
Standardized coordinate system for brain imaging based on the Montreal Neurological Institute template.
Full Definition
MNI (Montreal Neurological Institute) space is a standardized coordinate system used in neuroimaging to enable comparison of brain data across subjects and studies. The MNI template is based on averaged brain anatomy from multiple subjects and provides a common reference frame for reporting brain locations and performing group analyses. Spatial normalization to MNI space allows researchers to combine data from different participants and compare results across studies. The coordinate system uses millimeter units with the origin at the anterior commissure, and locations are reported as (x, y, z) coordinates.
Usage
Usage note: Always uppercase 'MNI'; use 'space' not 'template' when referring to coordinate system.
In Context
- "All functional images were normalized to MNI space for group-level analysis." — Methods section
- "Peak activation was located at MNI coordinates x=45, y=-67, z=29." — Results section