Results of the multivariate linear model.

The Fiedler and spectral embedded metrics of scan path were predicted by main scan path parameters in a stepwise multivariate linear regression model. VB, the valence block; AB, the arousal block; R2, the adjusted coefficient of determination; FNum, the fixation number; Φ, the scan path diameter; AGV, the average velocity of saccade; SKW, the weight skewness; KUR, the weight kurtosis; SAP, saccade amplitude; PKV, the peak velocity of saccade. 1p<0.001, by F-test for the significance of the regression model or by t-test for the significance of partial coefficients. 2p<0.01, by t-test for the significance of partial coefficients. 3p<0.05, by t-test for the significance of partial coefficients.