Fig. 2From: Heritability of saccadic eye movements in spinocerebellar ataxia type 2: insights into an endophenotype markerCriteria defining saccade slowing as endophenotypical marker in SCA2. White drawings denote subjects with normal saccade velocities, whereas blue drawings denote subjects with saccade slowing. Drawings with different blue shades denote different degrees of saccade slowingBack to article page