Figure 3
From: Semantic and emotional content of imagined representations in human occipitotemporal cortex
The representational space of the 200 stimuli based on their occipitotemporal activation patterns at the end of the first run.
The first two dimensions of this space are illustrated. The DISTATIS extension of multidimensional scaling was used to optimally combine participants; variability is indicated by 95% confidence ellipses, coloured according to a tripartite classification into animate items and small or large inanimate objects. Panel (a) combines data across the four conditions and the image categories from the Caltech 256 dataset are superimposed on the ellipses. The lower panels show data for the two imagery conditions: experiment 1, knife imagery (b) and experiment 2, dolphin imagery (c). Elliptical outlines are bootstrapped 95% confidence ellipses illustrating the location of each referent’s neural neighbourhood, defined on the first two dimensions and averaged across subjects.
