An MRI based average macaque monkey stereotaxic atlas and space (MNI monkey space)

Area of Science:

• Neuroimaging
• Comparative Anatomy
• Primate Neuroscience

Background:

• Standard stereotaxic spaces like MNI space are crucial for human brain research, enabling cross-study comparisons.
• A common reference frame for macaque monkey brains is needed to standardize anatomical and functional localization.
• Existing methods lack a unified standard for macaque brain spatial normalization and analysis.

Purpose of the Study:

• To create a standard macaque monkey brain MRI template and atlas.
• To establish a common stereotaxic reference frame for macaque neuroimaging.
• To facilitate reliable comparison of brain data across individual monkeys and studies.

Main Methods:

• MRI volumes from 25 normal adult macaque monkeys (cynomolgus and rhesus) were used.
• A common standard macaque brain template and species-specific atlases were generated.
• 3D volumetric analysis and comparison of brain structures were performed.
• Web-based tools were developed for transforming macaque MRI volumes into the MNI monkey space.

Main Results:

• A standard macaque monkey brain MRI template and associated atlases were successfully created.
• The template provides a common stereotaxic reference for macaque brain localization.
• Tools are available for transforming macaque MRI data into MNI monkey space and other atlases.

Conclusions:

• The developed macaque brain template and tools standardize neuroimaging analysis in non-human primates.
• This resource enables more reliable comparisons of anatomical and functional data across macaque studies.
• Researchers can now precisely localize and delineate brain structures using this standardized framework.