Figure 1.

Schematic diagram of multivoxel pattern analysis and image analysis procedures. (A) A leave-one-participant-out method was used to measure patterns of response to different stimulus conditions. In this analysis, the pattern of response elicited by one participant is compared to the pattern generated by a group analysis of all remaining participants. This procedure is repeated for all combinations of stimulus conditions and participants. (B) The calculation of a GIST descriptor for an example image. A series of Gabor filters across eight orientations and four spatial frequencies is applied to the image. Each of the resulting 32 filtered images is then windowed along a 4 × 4 grid to give a final GIST descriptor of 512 values (right).