Left Choices (means, SE, 1Q and 3Q) in each test of Experiment 1 (A) and Experiment 2 (B). Dotted lines represent the chance level and dots represent the outliers, which were included in the final …
Experiment 1 | |||||||||
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Left panel | Right panel | BF | X2 | P | Phi | ||||
Test | Side | Left | Right | Left | Right | ||||
2 vs. 2 | Count | 51 | 35 | 18 | 16 | 0.301 | 0.403 | 0.525 | 0.058 |
% | 59.302 | 40.698 | 52.941 | 47.059 | |||||
5 vs. 5 | Count | 41 | 22 | 25 | 32 | 3.314 | 5.444 | 0.020 | 0.213 |
% | 65.079 | 34.921 | 43.860 | 56.140 | |||||
8 vs. 8 | Count | 21 | 13 | 51 | 35 | 0.249 | 0.062 | 0.804 | 0.023 |
% | 61.765 | 38.235 | 59.302 | 40.698 | |||||
Experiment 2 | |||||||||
Left Panel | Right Panel | BF | X2 | p | Phi | ||||
Test | Side | Left | Right | Left | Right | ||||
2 vs. 2 | Count | 62 | 22 | 20 | 16 | 1.512 | 3.880 | 0.049 | 0.180 |
% | 73.810 | 26.190 | 55.556 | 44.444 | |||||
5 vs. 5 | Count | 36 | 25 | 34 | 25 | 0.224 | 0.024 | 0.877 | 0.014 |
% | 58.333 | 41.667 | 57.626 | 42.373 | |||||
8 vs. 8 | Count | 24 | 16 | 23 | 57 | 49.104 | 10.930 | <0.001 | 0.302 |
% | 60 | 40 | 28.750 | 71.250 |
Time | Procedures |
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Day 1, morning | Arrival and housing in standard conditions |
Day 2, all day | Standard rearing conditions – no procedures |
Day 3, from early morning to mid afternoon | Removal of Food jars (2 hr before shaping) |
Shaping – followed by 2 hr rest | |
Training Session 1 | |
Test 1 – followed by 1 hr rest | |
Training Session 2 | |
Test 2 – followed by 1 hr rest | |
Training Session 3 | |
Test 3 | |
Social housing – end of procedures |
Figure 1A, Left Choices (LC) as a function of numerical magnitudes in Experiment 1.
Left Choices (LC) and Order restriction: LC2vs.2>LC5 vs.5>LC8 vs.8 in Experiment 1.
Small Number Bias (SNB) in Experiment 1.
Large Number Bias (LNB) in Experiment 1.
Table 1, Direction of Circumnavigation in Experiment one and in Experiment 2.
Figure 1B, Left Choices (LC) as a function of numerical magnitudes in Experiment 2.
Left Choices (LC) and Order restriction: LC2vs.2>LC5 vs.5>LC8 vs.8 in Experiment 2.
Small Number Bias (SNB) in Experiment 2.
Large Number Bias (LNB) in Experiment 2.