  This report is about facial asymmetry, its connection to emotional
expression, and methods of measuring facial asymmetry in videos of faces. The
research was motivated by two factors: firstly, there was a real opportunity to
develop a novel measure of asymmetry that required minimal human involvement
and that improved on earlier measures in the literature; and secondly, the
study of the relationship between facial asymmetry and emotional expression is
both interesting in its own right, and important because it can inform
neuropsychological theory and answer open questions concerning emotional
processing in the brain. The two aims of the research were: first, to develop
an automatic frame-by-frame measure of facial asymmetry in videos of faces that
improved on previous measures; and second, to use the measure to analyse the
relationship between facial asymmetry and emotional expression, and connect our
findings with previous research of the relationship.
