The vector of responses of one measurement channel (neurons, electrodes, or fMRI voxels) across the experimental conditions (stimuli, movements, or tasks). Diedrichsen & Kriegeskorte 2016
Pattern component modeling
Representational similarity analysis
Implements a likelihood-ratio test and therefore constitutes the most powerful test if its assumptions hold
The unequal variances and dependencies of the distance measures can be taken into account using a multi-normal approximation to the sampling distribution of the distance measures, so as to enable optimal inference.
The hypothesized model features (M) are used to estimate the corresponding weights (W).