Main Results for Composite Faces.

<p>Percent angry responses (y-axis) across the 11 morphing grades morphed from fear to anger (x-axis) for the four different composite face conditions (coloured lines); 'lower fearful', observers judge the upper half, while the lower half is always 100% fearful; 'lower angry', observers judge the upper half, while the lower half is always 100% angry; 'upper fearful', observers judge the lower half, while the upper half is always 100% fearful; 'upper angry', observers judge the lower half, while the upper half is always 100% angry.