Detection of Changes in Luminance Distributions

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Observer 5 individual data

The files below provide individual observer data for each condition. The files are tab-delimited tables, each 540 columns x 100 rows. Every 54 columns is an experimental block: the first column lists the level of the test illuminant on a trial-by-trial basis; the second column lists whether the test patches were on the left (1) or the right (2); the third column is the observer's response; the fourth column indicates whether the observer got that trial correct (1) or incorrect (0). The remaining fifty columns are the luminances of all patches on that trial. The first 25 numbers are the luminances of the left checkerboard; the second 25 are for the right checkerboard. Indices follow MATLAB convention for a 5x5 array, i.e. the first number = upper left corner; the 25th number = lower right corner, the third number = 1st column, 3rd row; the eighth number = 2nd column, 3rd row.

Observer 5 participated only in Experiment 3.


Experiment 3