Patent ID: 11867783
Assignee: KING'S COLLEGE LONDON
Field: Measurement (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A method for analysing a functional magnetic resonance imaging (fMRI) scan representing a time-sequence, comprising t time points, of images comprising v voxels, where each scan can be represented by a data matrix X∈t×v the method comprising:
modelling the scan data X as the convolution of a neural activation time course N∈+t×v and a haemodynamic filter Ψ, and performing an inverse operation to estimate N from X and Ψ; and
decomposing the neural activation time course N into multiple brain network components by representing N as the product of a first matrix H defining, for each component, a spatial map of the voxels belonging to that component, and a second matrix W defining, for each component, the time sequence of activation of that component during the scan.