Brain Morphology Can Identify a Specific Individual [Presidential Award Proceedings]

摘要

We investigated whether brain morphology can identify a specific person. Using structural magnetic resonance imaging data from 215 healthy subjects scanned twice, we performed brain recognition by normalizing images using voxel-based morphometry, extracting features based on principal component analysis, and calculating the Euclidean distances between image pairs projected into the subspace. The rank-one identification rate was 99.5% using even 32 dimensions for projection and was 100% using 112 and more dimensions. The results indicate that brain morphology can identify a specific person; that is, brain morphology is personally identifiable information.