Fig 1.
Schematic illustration of the experimental setup and time course.
(A) Experimental setup. (B) Time course of a stimulus for the experimental conditions.
Fig 2.
Psychometric functions for the four conditions obtained for participant T. Y.
Filled circles and solid lines show the raw data and fitted psychometric curves, respectively.
Fig 3.
The results in the main experiment (n = 7).
(A) The means of the PSEs. Error bars denote the standard errors. (B) The means of the JNDs. Error bars denote the standard errors.
Fig 4.
The PSEs and JNDs in the supplementary experiment (n = 3).
Symbols indicate individual data points and error bars denote the 95% confidence interval calculated by bootstrap method [22]. The trials whose RMSE of eye movement exceeded the threshold were excluded from data analysis. The numbers at each data point indicate the rate of the number of sample data used to analyze all sample data (%). 100 (%) means that all 60 sample data were used in data analysis.