< Back to Article

“I Look in Your Eyes, Honey”: Internal Face Features Induce Spatial Frequency Preference for Human Face Processing

Figure 8

Summarising the maxima of response distributions.

Data points indicate spatial frequencies associated with a peak of a response distribution curve (“valid maximum”). Whitening was performed with slopes from the corrected Blackman-Harris amplitude spectra. Oriented spectral slopes were either computed according to the (i) normal partition (amplitude-averaging according to mean) or the (ii) robust partition (median). The spectral slopes in turn were either averaged by (iii) computing their mean value or by (iv) computing their median . Symbol colors (and sizes) indicate corresponding combinations: yellow = normal partition & mean of slopes (i.e.,i together with iii), violet = robust & mean, green = normal & median, and red = robust & median. Symbol shapes, on the other hand, denote the different features: ○ = left eye, □ = right eye, ◊ = mouth, and . The mean value (median value) of the data points at each orientation is indicated by the solid red line (dash dotted line), with the shaded area indicating ±1 standard deviation. The error bars denote a robust estimate of standard deviation (by means of median absolute deviation MAD) with respect to the median value ( = dash dotted line). (A) “ROI = off”, pooling together response type and gender. (B) Same as with a, but for “ROI = on”.

doi: https://doi.org/10.1371/journal.pcbi.1000329.g008