These two analysis time windows produced highly significant differences in proportion of dwell time on the eyes (t(30) = −4.06, p = 0.0003, two-tailed), nose (t(30) = −4.95, p = 0.000027, two-tailed), and “other” AOIs (t(30) = 12.90, p = 9 × 10 −14 , two-tailed).
The difference in the mouth AOI was not statistically different, but showed a trend (t(30) = 1.70, p = 0.10, two-tailed).
If anything, there was a numerical trend of lower discrimination performance for the longer test phase presentation time limit, suggesting that more fixations beyond the second could even interfere with recognition performance.