“I Look in Your Eyes, Honey”: Internal Face Features Induce Spatial Frequency Preference for Human Face Processing
Figure 5
The display shows feature maps , with response types positve odd (
) and negative odd (
) being displayed simultaneously according to
. Brighter grey levels correspond to
, and darker grey levels correspond to
. Thus, the mid grey level of each feature map indicates the zero response level. Each image represents the average of 868 response maps centered at the position of the nose. Along rows, orientation
varies from top 0° to bottom 330° in steps of
. Along columns, the spatial frequency
increases from left 8 to right 80 cycles per image in steps of
cycles per image, thus showing only 13 of a total of 39 spatial frequencies that were used in the analysis. For displaying, each feature map was normalized individually in order to improve the overall view.