Symmetry as a grouping cue for numerosity perception

For the numerosity experiments: each file contains a matrix called “a”. Each row of the matrix “a” is a trial. The columns contain the following information: 1st: Numerosity of test stimulus 2nd: Log10 of numerosity of test stimulus divided by the standard numerosity 3rd: Participant response (0 = standard stimulus; 1 = test stimulus) 4th: 200 5th: Standard numerosity 6th: Dots size in pixels 7th: 10 8th: Condition (0= symmetry condition; 1= random condition) 9th: Standard-Test order (1 = standard first; 2 = standard second) 10th: Response time For the control experiment: each file contains a matrix called “a”. Each row of the matrix “a” is a trial. The columns contain the following information: 1st: Numerosity of test stimulus 2nd: Log10 of numerosity of test stimulus divided by the standard numerosity 3rd: Participant response (0 = standard stimulus; 1 = test stimulus) 4th: 200 5th: Standard numerosity 6th: Dots size in pixels 7th: 10 8th: 0= standard stimulus symmetric and test stimulus random 9th: Standard-Test order (1 = standard first; 2 = standard second) 10th: Response time

Related Organizations

National Research Council
Italy
University of Florence
Italy

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