Table 3. 

Statistical Results for the Mean Pupil Size during Specified Time Window (sec) in Experiments 1–5

 TaskSti.TimeANOVALinear Trend AnalysisCorrelation AnalysisPartial Correlation Analysis
FpFprtprtp
E1 Att. FC 0.5–1.5 3.06 .01* 7.91 .02* −.09 −2.50 .03* −.03 −1.05 .31 
Att. GF 0.5–1.5 0.36 .90 0.24 .64 .00 0.02 .98 .02 0.50 .62 
Rnd. FC 0.5–1.5 1.66 .14 0.65 .44 .03 0.70 .50 .02 0.39 .70 
Imp. FC 0.5–1.5 2.45 .03* 5.39 .04* −.12 −2.94 .01* −.08 −2.29 .04* 
E2 Att. FC (eql) 0.5–1.5 4.49 <.001*** 20.36 <.001*** −.09 −3.13 <.01** −.07 −2.65 .02* 
Att. NS (eql) 0.5–1.5 3.15 .01* 6.48 .02* −.10 −3.93 <.01** −.09 −3.45 <.01** 
Rnd. FC (eql) 0.5–1.5 1.13 .35 3.43 .09 −.06 −2.32 .04* −.05 −2.08 .06 
Imp. FC (eql) 0.5–1.5 1.93 .09 10.33 <.01** −.07 −2.89 .01* −.04 −1.72 .11 
E3 Att. FC (eql) 0.5–1.5 7.09 <.001*** 18.98 <.001*** −.14 −4.77 <.001*** −.07 −3.00 <.01** 
3–5 4.54 <.001*** 9.41 <.01** −.08 −2.62 .02* −.02 −0.82 .43 
E4 Att. FC (line) 0.5–1.5 0.81 .57 1.69 .22 −.07 −1.13 .28 −.06 −0.91 .38 
3–5 3.10 <.01** 2.89 .12 .09 1.57 .15 .10 2.03 .07 
Pas. FC (line) 0.5–1.5 2.21 .05 2.88 .12 .07 1.43 .18 .06 1.16 .27 
3–5 0.17 .99 0.48 .50 .04 0.77 .46 .05 0.95 .36 
E5 Att. FC 0.5–1.5 0.57 .75 1.29 .29 −.07 −2.12 .06 −.04 −1.17 .27 
Att. GF 0.5–1.5 0.43 .86 0.82 .39 .06 0.85 .42 .03 0.37 .72 
 TaskSti.TimeANOVALinear Trend AnalysisCorrelation AnalysisPartial Correlation Analysis
FpFprtprtp
E1 Att. FC 0.5–1.5 3.06 .01* 7.91 .02* −.09 −2.50 .03* −.03 −1.05 .31 
Att. GF 0.5–1.5 0.36 .90 0.24 .64 .00 0.02 .98 .02 0.50 .62 
Rnd. FC 0.5–1.5 1.66 .14 0.65 .44 .03 0.70 .50 .02 0.39 .70 
Imp. FC 0.5–1.5 2.45 .03* 5.39 .04* −.12 −2.94 .01* −.08 −2.29 .04* 
E2 Att. FC (eql) 0.5–1.5 4.49 <.001*** 20.36 <.001*** −.09 −3.13 <.01** −.07 −2.65 .02* 
Att. NS (eql) 0.5–1.5 3.15 .01* 6.48 .02* −.10 −3.93 <.01** −.09 −3.45 <.01** 
Rnd. FC (eql) 0.5–1.5 1.13 .35 3.43 .09 −.06 −2.32 .04* −.05 −2.08 .06 
Imp. FC (eql) 0.5–1.5 1.93 .09 10.33 <.01** −.07 −2.89 .01* −.04 −1.72 .11 
E3 Att. FC (eql) 0.5–1.5 7.09 <.001*** 18.98 <.001*** −.14 −4.77 <.001*** −.07 −3.00 <.01** 
3–5 4.54 <.001*** 9.41 <.01** −.08 −2.62 .02* −.02 −0.82 .43 
E4 Att. FC (line) 0.5–1.5 0.81 .57 1.69 .22 −.07 −1.13 .28 −.06 −0.91 .38 
3–5 3.10 <.01** 2.89 .12 .09 1.57 .15 .10 2.03 .07 
Pas. FC (line) 0.5–1.5 2.21 .05 2.88 .12 .07 1.43 .18 .06 1.16 .27 
3–5 0.17 .99 0.48 .50 .04 0.77 .46 .05 0.95 .36 
E5 Att. FC 0.5–1.5 0.57 .75 1.29 .29 −.07 −2.12 .06 −.04 −1.17 .27 
Att. GF 0.5–1.5 0.43 .86 0.82 .39 .06 0.85 .42 .03 0.37 .72 

ANOVA examined whether pupil size differed among ratings. Linear trend analysis examined whether pupil size linearly correlated with rating using average data. Correlation analysis and partial correlation analysis examined the correlation between pupil size and rating on a trial-by-trial basis, without and with the effect of gazed local luminance being removed, respectively. Att. = attractiveness task; Rnd. = roundness task; Imp. = implicit attractiveness; Pas. = passive viewing; Sti. = stimuli; FC = faces; GF = geometric figures; NS = natural scenes; eql = equal luminance; line = line drawing; F = F statistic; p = p value; r = mean Pearson's correlation coefficient; t = t statistic.

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