A0857
Title: Reliability in functional brain measurement
Authors: Brian Caffo - Johns Hopkins University (United States) [presenting]
Abstract: Repeatability in functional brain measurement is discussed. The use of fingerprinting in functional connectomics is discussed, which involves matching an individual's brain scans from two different sessions in a group of subjects. The process involves statistical tests based on the assumption of exchangeability. The soundness of these tests, their power, and the factors that influence them are discussed. Theoretical investigations and numerical studies are presented using fMRI datasets from the human connectome project (HCP) and the Baltimore longitudinal study of ageing (BLSA). The sensitivity of the tests to various factors is further examined, such as familial status or demographics, and a detailed analysis of single regional connections in the HCP data is performed.
